Answers
Answer:
The surfaces of the Earth and the Moon are very different. The surface of the Earth is dynamic because it changes constantly. This is caused by movement of crust, erosion by water and wind, and living organisms. Plate tectonics changes the positions of the continents, reshapes ocean basins, and creates mountain ranges and volcanoes.
Explanation:
Related Questions
Draw a table which explains the function(s) of each macromolecule. For those that have monomers, list them. For the one that does NOT have a monomer, list 2 molecules that Mae it up.
Answers
There are four main types of macromolecules found in living organisms: carbohydrates, lipids, proteins, and nucleic acids. Each macromolecule has its own unique function in the body.
What is the function(s) of each macromolecule?Carbohydrates: Carbohydrates are molecules made up of carbon, hydrogen, and oxygen atoms, and they are a primary source of energy for the body. They provide quick energy to cells and are stored in the form of glycogen in the liver and muscles.
Lipids: Lipids are molecules made up of carbon, hydrogen, and oxygen atoms, and they are insoluble in water. They serve as a source of energy, a storage form of energy, and as a component of cell membranes.
Proteins: Proteins are large molecules made up of amino acids, and they have a wide range of functions in the body. Some proteins serve as enzymes, which catalyze chemical reactions in the body.
Nucleic acids: Nucleic acids are molecules made up of nucleotides, and they carry genetic information in the form of DNA and RNA. DNA is found in the nucleus of cells and contains the genetic code that determines an organism's traits.
Therefore,
Macromolecule Monomers (if applicable) Functions
Carbohydrates Monosaccharides Energy source, structural component
Proteins Amino acids Enzymes, structural components, hormones, defense
Lipids None Energy storage, membrane structure, signaling
Nucleic acids Nucleotides Genetic information storage and transmission
Learn more about macromolecule here:
https://brainly.com/question/15237842
#SPJ1
TRUE OR FALSE Mammals like caribou that live in the arctic often use different lipid types in their legs. Legs are more susceptible to heat loss than internal organs, which are closer to the body core and stay warmer. Which adaptations would you expect for lipids in caribou legs?
1. The lipids would be more saturated. TrueFalse
2. The lipids on the fatty acid tails would be shorter. TrueFalse
3. The membranes would contain more cholesterol. TrueFalse
Answers
1. The lipids would be more saturated- FALSE
2. The lipids on the fatty acid tails would be much shorter- TRUE
3. The membranes would contain more cholesterol- TRUE
Caribou, an animal that inhabits the bitterly cold Arctic, has developed a number of physiological adaptations to withstand the cold. They have two coats of fur and small ears to prevent heat loss. Caribou lipids contain many modifications.
Unsaturated fatty acids are more pliable at low temperatures than saturated fatty acids. As a result, the lipids in caribou legs are unsaturated to maintain their fluid nature at the frigid Arctic temperatures. When compared to longer lipids on fatty acid tails, shorter ones maintain better fluidity at low temperatures.
There will be less lipid in the fatty acid tails as a result. Moreover, increased cholesterol in the membranes would increase their fluidity in the cold exterior environment conditions. Thus there would be more cholesterol in the membranes.
Learn more about Lipids here
https://brainly.com/question/13992442
#SPJ4
Justify the statement “Structure of a cell is adapted to its function”, by giving examples of 2 plant and 2 animal cells that are specialized cells. Also list the advantages for cells adapting to its function.
Answers
Answer:
plant cells, palisade mesophyll cell, spongy mesophyll cell
animals- mitochondria, ribosomes
Plant cells, palisade mesophyll cell, spongy mesophyll cell and animals- mitochondria, ribosomes.
What is Cell?Although cells can have dramatically varied appearances, they have a lot in common. In actuality, over the course of billions of years, cells have adapted to a broad variety of surroundings and functional responsibilities.
Plant cells that fit together like bricks have a stiff outer covering that aids in providing the necessary structural support for trees and other plants. Long, tapering muscle cells have an inherent pliability that enables them to adjust in length as the biceps contract and rest.
Cells are considered the basic units of life in part because they come in discrete and easily recognizable packages.
Therefore, Plant cells, palisade mesophyll cell, spongy mesophyll cell and animals- mitochondria, ribosomes.
To learn more about cells, refer to the link:
https://brainly.com/question/30046049
#SPJ2
2. How does mimicry differ from camouflage?
Answers
Answer:
mimicry is copy camouflage is something already has
Explanation:
The receptor system is the part of your nervous system that detects or senses the environment .
Ture or flase
Answers
The receptor system is the part of your nervous system which detects or senses the environment. This statement is True.
What is Receptor?Receptors are defined as chemical structures composed of proteins, which receive and transduce signals that can be integrated into biological systems. These molecules inside or on the surface of the cell bind to a specific substance and produce a specific effect in the cell.
When a ligand binds to the receptor, the receptor may change conformation which allows the signal to be transmitted into the cell while in some cases the receptors will remain on the cell surface and the ligand will eventually diffuse out.
It is found inside of the cell (in the cytoplasm or nucleus), and cell surface receptors, which are found in the plasma membrane.
Thus, the receptor system is the part of your nervous system which detects or senses the environment. This statement is True.
Learn more about Receptors, here:
https://brainly.com/question/11985070
#SPJ2
in which biome are minerals in the soil most rapidly depleted
Answers
Answer:
Boreal forest is among the largest terrestrial biomes on earth in which minerals in the soil most rapidly depleted.
a cow that isable to produce meat with less fat compared to a traditional cow, would be an example of ?
A: Cloning
B: DNA fingerprinting
C: Transgenic organisms
D: Genetic replication
Answers
Answer:
cloning
Explanation:
Answer:
transgenic organisms
Explanation:
transgenic animals produce leaner meat
A geneticist crossed pure breeding black mice with pure breeding brown mice. All the mice in the F1 generation had black coats. When these mice were crossed, they yielded 961 black coated mice and 317 brown coated mice.
Fill in the new combinations of alleles in the F2 generation.
Answers
Answer:
The correct answer is - the brown allele is not independent from the black allele and disappears in the F1 generation.
Explanation:
IN this question it is given that there is a cross between pure black and pure brown breed and the F1 generation has all-black coat offspring and their self cross produced 961 black and 317 brown.
The black coat offspring is three times than the brown coat offspring in F2 generation which means they have 3:1 ratio that comes in the self cross of heterozygous only there for the F1 generation black coat offspring have the heterozygous genotype for the trait,
Thus, the brown allele is not independent of the black allele and disappears in the F1 generation.
For the roller ball, create a subset of messaging/marketing that speaks to this product specifically.
Answers
The marketing of roller ball can be given with the questions such as Don't just mask the pain, fix the problem.
What is marketing?Marketing can be given as the process of creating demand by meeting goods and services in the market. The marketing can be followed with varying messaging that targets a problem.
The complete question is given in the image attached below.
Some of the marketing messages that speak for the roller ball in the market are:
Don't just mask the pain, fix the problem. Tired of taking pills that only cover up the pain? Try a topical pain reliever for something different. Did pain get you down? Try a new pain toolkit.For more information regarding marketing, visit:
https://brainly.com/question/25754149
#SPJ1
Why do people cook meat and eggs before they eat them? The answer has to do in part with the chemical changes that take place during cooking. Heat breaks down proteins in meat and eggs to change the chemical makeup of these foods. The resulting substances are easier for humans to digest. Similarly, batter undergoes chemical changes as it is baked and becomes a cake. These examples show that chemical changes can result in substances with different smells and colors. I strongly advise against eating raw meat, eggs or cake batter, but trust me: these examples show a change in taste as well. Not every change in the kitchen is chemical, though. Mixing flour, sugar, butter and eggs is a physical change. Cutting meat is a physical change, too.
The author of this passage would most likely agree with which of the following statements?
A
Raw meat smells better than cooked meat.
B
People usually overcook their eggs.
C
Chemical changes are more exciting than physical changes.
D
Raw meat can be dangerous for people to eat.
Answers
A lot of diseases are caused by a genetic error that gets passed down in reproductive cells. True/False
Answers
It is true that a lot of diseases are caused by genetic error that gets passed down in reproductive cells.
The correct option is True
What are genetic diseases?An illness characterized by one or more abnormalities in the genome is referred to as a genetic disease. It may result from chromosomal abnormalities, DNA mutations in one or more genes, or both.
The responsible mutation may arise spontaneously before embryonic development, or it may be passed down through autosomal recessive inheritance from two parents who carry the defective gene, or from a parent who already has the disease (autosomal dominant inheritance).
Learn more about genetic diseases at: https://brainly.com/question/1100281
#SPJ1
The inheritance of genetic traits from parents to children follows predictable rules. Knowing
that each parent contributes genes equally to each child, what determines an inherited trait
such as eye color?
Answers
Worms bacteria and fungi help the ecosystem by________ dead organisms
Answers
Answer: consuming
Explanation: trust me
What was the climate like prior to the extinction ?
Answers
Answer:
The extinction you are referring to is unclear, as there have been several mass extinctions throughout Earth's history. However, it is generally accepted that climate has played a significant role in many of these events. Prior to some of the mass extinctions, such as the Permian-Triassic extinction and the Cretaceous-Paleogene extinction, the climate was warm and tropical with high levels of carbon dioxide in the atmosphere. This warm climate was likely a contributing factor to the extinction, as it may have led to changes in sea level, ocean circulation, and weather patterns that disrupted ecosystems and caused widespread extinction of species. However, it is important to note that climate is just one of many factors that can contribute to mass extinction events, and there are often multiple causes involved.
Which statement best describes a difference between cell division in plant and animal cells?
A. In animal cells, cytoplasmic division is accomplished by "pinching in" of the cell membrane, while in plant cells a cell plate is synthesized.
B. In plant cells, cytoplasmic division is accomplished by a "pinching in" of the cell membrane, while in animal cells a cell plate is synthesized.
C. In plant cells, centrosomes have a distinct role in spindle formation, while in animal cells centrosomes do not function during cell division.
D. In animal cells, replication of chromosomes occurs during the nondividing phase, while in plant cells replications occurs when the nuclear membrane disintegrates.
Answers
The statement 'in animal cells, the cytoplasmic division is accomplished by "pinching in" of the cell membrane, while in plant cells a cell plate is synthesized' correctly describes the difference during the cell division process between these two types of cells (Option A).
What is the cell plate?The cell plate is a structure formed during cell division in plant cells, which is mainly composed of cellulose, which grows form the cell center and moves to the plasma membrane until both structures fuse.
The cell plate is formed during the anaphase, which is the last stage of cell division (i.e., mitosis) both in plant and animal cells.
In conclusion, the statement 'in animal cells, the cytoplasmic division is accomplished by "pinching in" of the cell membrane, while in plant cells a cell plate is synthesized' correctly describes the difference during the cell division process between these two types of cells (Option A).
Learn more about cell division in plant cells here:
https://brainly.com/question/16345827
#SPJ1
Plants need certain bacteria to produce usable nitrogen compounds because:
Plants need bacteria to produce plant protein
There is no nitrogen in the soil
the bacteria produce the basic sugars needed as plant food
Plants cannot separate the nitrogen gas molecule into a usable element
Answers
Answer:
Plants cannot separate the nitrogen gas molecule into a usable element
Explanation:
Nitrogen is an essential element for plant growth and development, but it is present in the air as a gas (N2) that is not readily usable by plants. Nitrogen-fixing bacteria, such as rhizobia and cyanobacteria, can convert nitrogen gas into usable forms of nitrogen, such as ammonia and nitrates, through the process of nitrogen fixation. These nitrogen compounds can then be taken up by plants and used to synthesize amino acids, which are the building blocks of proteins, and other essential molecules.
Chromosome structure
Which of the following statements concerning chromosomes is/are true? Select all that apply.
Chromosomes are composed of DNA and packaging proteins called histones so they may fit tightly into the nucleus of a cell.
Answers
Statements a, b, e, and f are true, while statements c and d are partially true. Understanding the structure and function of chromosomes is fundamental to comprehending various aspects of genetics and cell biology.
a. Chromosomes are composed of DNA and packaging proteins called histones so they may fit tightly into the nucleus of a cell.
This statement is true. Chromosomes consist of DNA molecules that are tightly wound around histone proteins. This compact packaging allows the long DNA molecules to fit within the limited space of the cell nucleus.
b. Located on each chromosome are segments of DNA known as genes or units of inheritance that code for functional products.
This statement is true. Genes are specific segments of DNA that are located on chromosomes. They contain the instructions for the synthesis of functional products such as proteins or RNA molecules.
c. Homologous chromosomes contain the same genes and the same allele combination.
This statement is partially true. Homologous chromosomes are chromosome pairs that carry the same genes, but they may not necessarily have the same allele combination. Alleles are different forms or variants of a gene, and they can differ between homologous chromosomes.
d. DNA replication occurs prior to the cell cycle, in which copies of each homologous chromosome are made, and each of these copies is called a sister chromatid.
This statement is partially true. DNA replication does occur prior to the cell cycle, and during replication, copies of each chromosome are made. However, the copies are not called sister chromatids at this stage. Sister chromatids are formed when the replicated chromosomes remain attached to each other until they separate during cell division.
e. After replication, sister chromatids, which are identical copies of a chromosome, contain identical allele combinations.
This statement is true. After DNA replication, the two sister chromatids that make up a replicated chromosome are indeed identical copies of each other. They contain the same genetic information, including the same alleles.
f. The ultimate purpose of sexual reproduction and replicating chromosomes is to pass on a copy of a cell's genes to the next generation of cells within the body.
This statement is partially true. The ultimate purpose of sexual reproduction is to pass on a copy of an organism's genes to the next generation. However, the statement specifically mentions passing on genes to the next generation of cells within the body, which is not entirely accurate.
know more about genetics here:
https://brainly.com/question/12111570
#SPJ8
The Question was Incomplete, Find the full content below :
Which of the following statements concerning chromosomes is/are true?
a. Chromosomes are composed of DNA and packaging proteins called histones so they may fit tightly into the nucleus of a cell.
b. Located on each chromosome are segments of DNA known as genes or units of inheritance that code for functional products.
c. Homologous chromosomes contain the same genes and the same allele combination.
d. DNA replication occurs prior to the cell cycle, in which copies of each homologous chromosome are made and each of these copies are called sister chromatids.
e. After replication, sister chromatids, which are identical copies of a chromosome, contain identical allele combinations.
f. The ultimate purpose of sexual reproduction and replicating chromosomes is to pass on a copy of a cell's genes to the next generation of cells within the body.
If a moon that looks half full is on its way to increasing into a full moon, it is called a
Answers
Answer: If a moon that looks half full is on its way to increasing into a full moon, it is called a waxing gibbous moon.
Explanation: During the waxing phase, the illuminated portion of the moon visible from Earth is increasing, as the moon moves along its orbit around the Earth. When the moon is exactly half full, it is called a first quarter moon. As the moon continues to wax, it progresses from a first quarter moon to a waxing gibbous moon, and eventually to a full moon.
Identify all of the following test conclusions that support the hypothesis that bats are an
important means of controlling insect pests.
Answers
Answer:
they keep the population of certain insects under control for example mosquitos
Explanation:
my answer is also my explanation
In humans, free-ear lobes are dominant to attached lobes. Two parents that are both heterozygous free are excepting a child. Show the probabilities for this cross
P:
Genotypic ratio:
Phenotypic ratio:
Answers
Answer: Phenotypic Ratio is 3:1 and genotypic ratio is 1:2:1
Explanation:
Since free lobes are dominant, let's represent that as F, and since attached earlobes are recessive, let's demonstrate that as f.
So, if the parents are heterozygous (have both alleles F & f), then the cross will be Ff x Ff. When you do the punnett square for that the four possible genotypes will be FF, Ff, Ff, and ff.
Phenotype: the physical appearance of an organism.
Genotype: the genetic makeup of am organism (results of punnet square)
So, since dominant always presides over recessive and three of our punnet square have capital F as the first letter (dominant), then those three will show the dominant trait, which is free ear lobes. And the one individual with ff will show the recessive trait (attached ear lobes). So the phenotype ratio is 3:1.
TIME REMAINING
18:55
A hypothesis is _______.
a.
a proposed solution to observed phenomena
b.
a question derived from observed phenomena
c.
a testable explanation for observed phenomena
d.
generated as the final step in scientific inquiry
Answers
A hypothesis is a testable explanation for observed phenomena (option C).
What is a hypothesis?A hypothesis is a tentative conjecture explaining an observation, phenomenon or scientific problem that can be tested by further observation, investigation and/or experimentation.
A hypothesis is usually constructed prior to the experiment and is a statement that takes the 'IF, THEN' format.
A hypothesis must be subjected to experimentation to affirm it's validity and can either be rejected or accepted. Therefore, option C is correct.
Learn more about hypothesis at: https://brainly.com/question/29576929
#SPJ1
write the phenotype and genotype
Answers
Explanation:
The concepts of phenotype and genotype are related to genetics.
The phenotype is generally called the external appearance of the living thing, which is formed by the genetic information and environmental effects.
Genotype is the genetic information that an organism carries in its DNA.
For example; Character A is the favorite black color. a is the blue color character.
While the Aa display shows the individual with black eyes in the phenotype, the genotype is expressed as heterozygous dominant black eyes.
Check all that are true of the following scenario.
An archer strings an arrow on a bow and draws the string back. Aiming the bow
upwards at a 45 degree angle, the archer pauses with arms locked into position and
then releases the string. The arrow flies upwards making an arc and then sticks into
the trunk of a tree with an audible thud.
At least four different types of energy are illustrated in this example.
The first energy transformation in the scenario is chemical energy to kinetic.
From the time the archer draws the bow until the thud us heard, entropy increases in
the universe.
The energy of the arrow at the end of the scenario is equal to the energy exerted by the
muscles of the archer.
When the arrow sticks into the tree the original energy has all been used up.
Answers
Statements 1 and 3 are true, while statements 2 and 4 are false.The first energy transformation in the scenario is chemical energy to kinetic. - True.
The archer converts chemical energy stored in their muscles into kinetic energy when they release the string and propel the arrow forward.From the time the archer draws the bow until the thud is heard, entropy increases in the universe. - False. Entropy is a measure of disorder or randomness in a system. In this scenario, the archer's actions do not necessarily lead to an increase in entropy.
The energy of the arrow at the end of the scenario is equal to the energy exerted by the muscles of the archer. - False. Energy is conserved in a closed system, but some energy is lost as heat and sound during the process. Therefore, the energy of the arrow at the end may be less than the energy exerted by the archer's muscles.
When the arrow sticks into the tree, the original energy has all been used up. - False. Energy is not created or destroyed but rather transformed from one form to another. Some of the initial energy from the archer's muscles is transferred to the arrow's kinetic energy, but it is not entirely used up.In summary, statements 1 and 3 are true, while statements 2 and 4 are false.
For more such questions on energy
https://brainly.com/question/30337295
#SPJ8
which of the following is not a protist?
a. paramecium
b. amoeba
c. plasmodium
d. yeast
Answers
Artem Brenner (username: abrenner3256)
Attempt 1
Written: Oct 3, 2021 10:42 PM - Oct 3, 2021 11:10 PM
Submission View
Question 1 1 / 1 point
How many of the 4 types of tissue are found in the integument?
Question options:
A)
1
B)
2
C)
3
D)
4
Question 2 0 / 1 point
The epidermis contains 4-5 layers of connective tissue.
Question options:
A) True
B) False
Hide Feedback
What kind of tissue makes up the epidermis?
Question 3 0 / 1 point
Which of the following layers is not always present in the skin?
Question options:
A)
reticular layer
B)
stratum corneum
C)
stratum lucidum
D)
papillary layer
Hide Feedback
The dermis is always made of two layers.
Question 4 0 / 1 point
By the time cells migrate to the most superficial layer of the epidermis, they are dead because they are filled with:
Question options:
A)
melanin
B)
melatonin
C)
keratin
D)
adipose
Hide Feedback
Melanin doesn't migrate in skin cells
Question 5 0.429 / 1 point
Melanin (choose all that apply):
Question options:
1)
protects the skin from UV radiation
2)
waterproofs the skin
3)
gives skin its color
4)
is produced at the same rate in everyone
5)
causes skin cells to die
6)
protects the skin from losing too much water
7)
gives hair and eyes their color
Hide Feedback
This is the function of keratin.
Melanin protects cells.
Question 6 1 / 1 point
The skin functions in protection. One of those ways is an immune cell called a:
Question options:
A)
Langerhan's cell
B)
Merkel's cell
C)
desmosome
D)
keratinocyte
Question 7 0 / 1 point
The dermis is vascular tissue.
Question options:
A) True
B) False
Hide Feedback
The dermis is connective tissues and connective tissues are all vascular except for cartilage.
Question 8 0.333 / 1 point
The tissue type of the dermis is (choose all that apply):
Question options:
1)
dense irregular connective tissue
2)
stratified squamous
3)
loose areolar
4)
dense regular connective tissue
5)
simple cuboidal
6)
osseous
Hide Feedback
This is a type of epithelial tissue. Is the dermis made of epithelial tissue?
Dense regular connective tissue is found in areas where great strength and very little flexibility is needed.
Question 9 1 / 1 point
The skin is an organ of synthesis. What does it synthesize?
Question options:
A)
Vitamin K
B)
Vitamin E
C)
Vitamin D
D)
Vitamin A
Question 10 0 / 1 point
The bulk of the accessory structures of the skin are located in the:
Question options:
A)
stratum spinosum
B)
dermis
C)
hypodermis
D)
stratum lucidum
Hide Feedback
This is epidermis. The epidermis is made of epithelial tissue which is tightly packed cells - little room for anything else.
Question 11 0 / 1 point
A major difference between eccrine and apocrine sweat glands is that:
Question options:
A)
apocrine sweat glands are found throughout the body. Eccrine sweat glands are only found in the areolar, anus, and armpits.
B)
eccrine sweat glands secrete into hair follicles
C)
apocrine sweat glands are only found in the areolar, anus, and armpits. Eccrine sweat glands are found throughout the body.
D)
eccrine sweat glands secrete a thicker substance than apocrine glands
Hide Feedback
No - apocrine sweat glands are the ones that secrete into hair follicles.
Question 12 1 / 1 point
Sebaceous glands excrete what kind of material?
Question options:
1)
water
2)
electrolytes/ions
3)
lipids/oils/fats
4)
proteins
Question 13 1 / 1 point
When the internal body temperature drops, which of these does not happen?
Question options:
A)
skeletal muscles will contract involuntarily
B)
sweat glands decrease excretion
C)
blood vessels constrict
D)
blood vessels dilate
Question 14 1 / 1 point
Severe burns on the skin covering large areas are life-threatening because:
Question options:
A)
the skin has so many functions that large portions of the skin aren't performing them anymore
B)
if skin is not replaced in a timely manner, further sunburns could exacerbate things
C)
the skin will no longer be able to make vitamin E if it is not healed
D)
the dermis cannot offer protection against UV radiation
Question 15 1 / 1 point
A shortened "turnover time" results in the formation of a ___________.
Question options:
A)
bruise
B)
callus
C)
scar
D)
stretch mark
Answers
Answer:
question91/1
Explanation:
vitamin D
Help me please !!!
Which event in meiosis increases genetic variation within a population?
A. DNA condenses to form chromosomes.
B. Segments of chromosomes cross over.
C. Chromosomes duplicate themselves.
D. Chromosomes form pairs.
Answers
Answer:
Because of recombination and independent assortment in meiosis, each gamete contains a different set of DNA. This produces a unique combination of genes in the resulting zygote. Recombination or crossing over occur during prophase 1
Which of these processes are anaerobic?
Select one or more:
O alcohol fermentation
lactic acid fermentation
O cellular respiration
electron transport chain
glycolysis
Check
Answers
Mark this and return
How is energy related to the change of state
represented by the model?
O Atoms gain energy as a gas changes to a solid.
Atoms gain energy as a gas changes to a liquid.
Atoms lose energy as a gas changes to a solid.
Atoms lose energy as a gas changes to a liquid.
Answers
The energy is related to the change of state represented by the model by: D. Atoms lose energy as a gas changes to a liquid.
What is Atoms?A model of the transition from a gas to a liquid is shown in the accompanying image. It demonstrates how atoms or molecules change from being widely scattered as in a gas to being concentrated as in a liquid.
The atoms in this process move from a higher-energy state to a lower-energy state releasing or losing energy in the process. The most common kind of energy loss is heat.
Therefore the correct option is d.
Learn more about Atoms here:https://brainly.com/question/17545314
#SPJ1
According to the Punnett square, offspring from these two parents have a ____________ chance of inheriting one B allele and one b allele. Individuals that inherit these two alleles are ____________ for the B gene. Inheriting Bb confers the ____________ of brown eyes.
Answers
Answer:
Explanation:
50%, heterozygous, phenotype
PLEASE HELP WITH THIS ONE QUESTION
What statement about the inheritance of mitochondrial DNA is true?
A) The sperm cell donates most of the material in the cytoplasm to the zygote, including mitochondrial DNA.
B) The egg and sperm cells contribute equal amounts of mitochondrial DNA to the zygote.
C) The egg cell donates most of the material in the cytoplasm to the zygote, including mitochondrial DNA.
D) The sperm cell donates most of the DNA in the nucleus to the zygote, including mitochondrial DNA.
Answers
Answer:
The answer should be C
Explanation:
The egg contributes all the cytoplasm and organelles to the zygote. The sperm only contributes one set of chromosomes.
The typical sperm midpiece contains approximately 50-75 mitochondria with one copy of mtDNA in each. This represents an 8- to 10-fold decline in copy number during spermiogenesis.