Question: Does light have an effect on the rate of mitosis in a cell?
Hypothesis: If
then
Independent variable:
Dependent variable:
Answers
Answer:
Hypothesis: IF light is applied, THEN the rate of mitosis will increase
Independent variable: LIGHT
Dependent variable: RATE OF MITOSIS
Explanation:
Hypothesis is a testable explanation given to solve a problem or answer a question. It is usually in the IF, THEN format. A hypothesis of this experiment can read: IF light is applied, THEN the rate of mitosis will increase.
Independent variable is the variable that is changed or manipulated by the experimenter in an experiment. In this experiment, the independent variable is the LIGHT.
Dependent variable is the variable that is measured in the experiment. It is the variable that responds to changes made to the independent variable. In this experiment, the dependent variable is the RATE OF MITOSIS in a cell.
Related Questions
In plants, axial flowers are dominant over terminal flowers. Also, flower color is controlled by multiple alleles. Plant #1 is heterozygous for axial flowers and has orange flowers. Plant #2 has terminal flowers and light yellow flowers. If these two plants have offspring, what is the percentage chance that they will make a plant that has terminal, pink flowers?
Answers
The percentage chance that the offspring of Plant #1 and Plant #2 will have terminal, pink flowers is 0%. There is a 25% chance that the offspring will have terminal, pink flowers.
To determine the probability of the offspring having terminal, pink flowers, we need to first analyze the traits of the parent plants. Plant #1 is heterozygous for axial flowers, which means it has one dominant allele for axial flowers (A) and one recessive allele for terminal flowers (a). Plant #2, on the other hand, has two recessive alleles for axial flowers (aa) and is therefore terminal. For flower color, we know that it is controlled by multiple alleles. Plant #1 has orange flowers, which means it has at least one dominant allele for orange (O) and may have another allele for a different color. Plant #2 has light yellow flowers, which means it has at least one recessive allele for yellow (o) and may have another allele for a different color.
Since axial flowers are dominant over terminal flowers and Plant #1 is heterozygous for axial flowers, its genotype must be Aa (where A represents the dominant axial allele and a represents the recessive terminal allele). Plant #2 has terminal flowers, so its genotype must be aa. When these two plants cross-pollinate, the possible genotypes of their offspring are Aa and aa (50% chance for each). However, only the aa genotype results in terminal flowers.
To know more about pink flowers visit:
https://brainly.com/question/1621970
#SPJ11
Enzyme kinetics falls into two general categories, simple saturation and cooperative kinetics.a. trueb. false
Answers
The given statement" Enzyme kinetics falls into two general categories, simple saturation and cooperative kinetic" is False Enzyme kinetics is a field of study that explores the rates of enzymatic reactions and the factors that influence them.
Enzyme kinetics encompasses a wide range of behaviors and mechanisms beyond simple saturation and cooperative kinetics. Simple saturation kinetics refers to the behavior of an enzyme when it becomes saturated with substrate, leading to a maximal reaction rate.
Cooperative kinetics, on the other hand, involves enzyme systems in which the binding of one substrate molecule affects the binding or activity of subsequent substrate molecules.
However, enzyme kinetics also includes other important concepts and models such as Michaelis-Menten kinetics, which describes the relationship between substrate concentration and enzyme activity.
It considers the formation of an enzyme-substrate complex and the subsequent conversion to product. Other models, such as Lineweaver-Burk, Eadie-Hofstee, and Hanes-Woolf, provide alternative ways of analyzing enzyme kinetics data and can account for different types of enzyme behaviors.
In summary, enzyme kinetics is a broad field that encompasses various kinetic models and mechanisms beyond simple saturation and cooperative kinetics. It involves the study of enzyme-substrate interactions, reaction rates, and factors that influence enzyme activity.
Know more about Enzyme kinetics here:
https://brainly.com/question/31589760
#SPJ11
Mitosis and Meiosis 1. Read the information about mitosis and meiosis, in each bids, write the number of chromosomes that would be found in the cell at that stage in the process
Answers
The number of chromosomes after each stage of mitosis and meiosis are:
Mitosis:a single parent cell's process of dividing into two new daughter cells. A full set of chromosomes from the parent cell are transferred to each daughter cell.
mitosis starts with 23 pairs of chromosome thus total 46 chromosomes are there once it completes mitosis there are same number of chromosomes that is 46
Meiosis:In sexually reproducing organisms, meiosis is a kind of cell division that results in a reduction in the number of chromosomes in gametes.
Meiosis I begins with 46 chromosomes that is 23 pairs.
Half of the original 46 chromosomes, or 23 chromosomes, will be present in each daughter cell.
Each gamete cell has 23 chromosomes after meiosis II, when each parent cell is divided into two gametes.
For more information on cell division kindly visit to
https://brainly.com/question/13312481
#SPJ9
Complete the passage to describe the universal law of gravitation.
The universal law of gravitation, written by
says that any two objects in the universe attract
each other by a force called
Answers
Where are sperm produced?
A. Vas deferens
B. Testes
C. Ejaculatory duct
D. Epididymis
Answers
Answer:
Option B
testes not copied
.
One of the main functions of the semi-permeable cell membrane is to maintain homeostasis for the cell. Semi-permeable means that only some molecules are allowed to cross the membrane and others are not.
What molecule enables large molecules to cross the membrane?
Answers
Answer:
Due to the semi-permeability of cell membrane, the molecules that allow large molecules to cross the membrane are proteins, specifically membrane integral proteins.
Explanation:
Membrane integral proteins are protein molecules that are part of the cell membrane, pass through it and cannot be separated from it. These molecules allow the passage of polar molecules and large molecules.
The channels and transporters are structures formed by integral proteins, which facilitate the passive and active transport of macromolecules, respectively.
The cell membrane is a lipid bilayer whose hydrophobic nature allows the passage of some substances and prevents the passage of others, which can pass through the membrane by using channels and protein transporters.
how many atoms of nitrogen are in a chemical formula Ni(NO3)2?
O 3
O 2
O 1
O 6
Answers
Answer:
2
just did test
Explanation:
Question 1The pH of a solution describes its acidity or alkalinity: Describe how pH and H3O+ concentration are related and explain why diluting an acid raises the pH, but diluting a base lowers the pH.Question 2Phosphate Buffered Saline (PBS) is a commonly used buffer for experiments in biology because its pH and ion concentrations are similar to those in mammalian organisms. It works in a similar fashion to the blood plasma buffer mentioned in the textbook, but using dihydrogen phosphate ions and hydrogen phosphate ions for buffering through the following chemical reaction:H2PO4- (aq) ⇆ H+(aq) + HPO42--(aq)The equilibrium arrows depict that the phosphate ion (H2PO4- ) is dissociating further into two component ions in solution, but at the same time H+ and HPO42- ions are combining simultaneously to form phosphate in solution. So, at any given point in time, and under the appropriate conditions, there is an equal quantity of dissolved ions and combined ions in solution. There is therefore always a hydrogen ion donor and an acceptor in solution.Based on the equation above, which ion plays the role of hydrogen-ion donor (acid) and which ion plays the role of hydrogen-ion acceptor (base) in PBS?Question 3
Answers
Question 2
Answer
H2PO4- is a hydrogen-ion donor (acid) and HPO42- is a hydrogen-ion acceptor (base).
Explanation
Given the equation:
\(H_2PO_{4(aq)}^-\text{ }\leftrightarrows\text{ H}_{(aq)}^+\text{ + HPO}_{4(aq)}^{2-}\)Required: Which ion plays the role of hydrogen-ion donor (acid) and which ion plays the role of hydrogen-ion acceptor (base) in PBS?
Solution:
H2PO4- is a hydrogen-ion donor (acid) and HPO4^2- is a hydrogen-ion acceptor (base).
In the equation above, the H2PO4- serves as a hydrogen donor, what happens is that Na2HPO4 dissociates into Na+ and HPO4-, this then results in a molecule being a proton acceptor. Where as in PBS solution, KH2PO4 dissociates into K+ and H2PO4-, this is a proton donor.
Many biological laboratories utilize PBS, a non-toxic solution known as phosphate buffered saline. PBS, unlike water, stops cells from rupturing or shriveling up as a result of osmosis.
What main purpose of Phosphate Buffered Saline (PBS)?
It is a salt solution based on water that includes sodium chloride, potassium chloride, and potassium dihydrogen phosphate in some formulations.
The buffer aids in keeping the pH steady. The solutions' osmolarity and ion concentrations are comparable to those found in the human body (isotonic).
As its name suggests, phosphate buffered saline functions as a buffer. In an effort to preserve the cell or tissue sample and preserve the osmolarity of the cells, it works to keep the pH at a neutral level. Additionally, it does not harm cells.
Therefore, Disodium hydrogen phosphate and sodium chloride make up PBS. Potassium phosphate or potassium chloride are both common additions. PBS from Biological is offered in concentrations of 1x or 10x.
Learn more about PBS here:
https://brainly.com/question/28666267
#SPJ2
what are the limiting factors of the burning bush?
Answers
What is the genetic material in the chromosomes of an animal's cells? *
Answers
Answer:
DNA is the hereditary material found in the nucleus of eukaryotic cells (animal and plant) and the cytoplasm of prokaryotic cells (bacteria) that determines the composition of the organism. DNA is found in the nucleus of every cell, and it is exactly the same in each cell.
Explanation:
please mark this answer as brainliest
ik your on a test a little secret
Answer:
Chromosomes are thread-like proteins present in both animal and plant nuclei. Protein and a single molecule of deoxyribonucleic acid make up each chromosome.
Explanation:
the lipid insulation produced by schwann cells that line the neurons is known as
Answers
The lipid insulation produced by Schwann cells that line the neurons is known as myelin. Myelin is a crucial component of the nervous system as it forms a protective layer around nerve fibers, also known as axons.
This insulation facilitates the rapid transmission of nerve impulses along the axons, which is essential for proper communication between neurons. Myelin is composed of lipids and proteins and has a unique appearance that varies depending on the location in the nervous system. In the central nervous system, oligodendrocytes produce myelin, while in the peripheral nervous system, Schwann cells are responsible for its production. When myelin is damaged, it can lead to various neurological disorders, such as multiple sclerosis, which is characterized by the loss of myelin in the central nervous system. Overall, myelin is an essential component of the nervous system that plays a critical role in facilitating proper communication between neurons and ensuring the efficient transmission of nerve impulses.
learn more about neurons here.
https://brainly.com/question/10706320
#SPJ11
Energy can be formally defined as the a. heat generated by atoms losing electrons b. displacement of heat from the sun to the earth c. capacity to do work d. process of moving objects e. velocity of any moving object
Answers
Energy can be formally defined as the capacity to do work which means option c is the correct choice.
Scientists outline energy because the capacity to do work. Modern civilization is feasible due to the fact humans have found out a way to extrade electricity from one shape to every other after which use it to do work. Energy is described because the “capacity to do work, that is the capacity to exert a pressure inflicting displacement of an object.” Despite this complicated definition, its that means could be very simple: electricity is simply the pressure that reasons matters to move. Energy is split into types: cap potential and kinetic. In environmental science, electricity normally refers back to the era of strength for human use.
Thus, option c is the correct choice.
To learn more about energy check the link below:
https://brainly.com/question/13881533
#SPJ4
Which cognitive achievement underlies a baby's ability to form an attachment to a specific adult, like a parent or other caregiver?
Select one:
a. Conservation
b. Code switching
c. Agency
d. Object permanence
Answers
The cognitive achievement that underlies a baby's ability to form an attachment to a specific adult, like a parent or other caregiver is "Object permanence."Object permanence is the cognitive accomplishment that allows an infant to realize that objects still exist even when they can't be seen, touched, or heard.
Object permanence plays a crucial role in the emergence of attachment behavior in infants. It is an important cognitive achievement that allows infants to form an attachment to a specific adult, like a parent or other caregiver, as they become aware that their parents or caregivers are separate from them and can leave them for short periods of time without disappearing.
Infants with object permanence are more likely to form a secure attachment with their parents and caregivers, as they are aware that their caregivers will come back if they leave. As a result, object permanence is a significant cognitive accomplishment that plays a critical role in the formation of early childhood attachments and the infant's social and emotional development.
To know more about underlies visit:
https://brainly.com/question/30754359
#SPJ11
true or false? drink driving is dangerous becuase the alcohol in the driver's body will decrease his reaction speed
Answers
Answer:
True
Explanation:
Drinking while driving slows a person's reaction time. This makes you more likely to crash.
If a parent cell has 48 chromosomes, how many chromosomes will each daughter cell have after mitosis and cytokinesis occurs? 96 chromosomes 48 chromosomes 12 chromosomes 24 chromosomes
Answers
Answer:
48 chromosome
In mitosis, the daughter cells have the same number of chromosome as the parents cell in the form of chromatids( as chromatids sister had separated during anaphase ).
I suggest you to learn( differentiate) about the term like chromatin, chromatid, chromosome, sister chromatids, homologous chromosomes so you can mastered this chapter.
Good luck!
Photosynthesis is done by
O Producers
O Consumers
O Oxygen
Carbon
Answers
Answer:
Option A
Producers
Explanation:
As, plants are called producers and they prepare their food with the help of the process called photosynthesis.
what pieces of evidence support the hypothesis that tetrapods evolved from lobeâfin fish?
Answers
The hypothesis that tetrapods evolved from lobe-finned fish is supported by multiple lines of evidence, including the fossil record, genetic analysis, and comparative anatomy. While there is still much to learn about the evolution of tetrapods, this hypothesis provides a compelling framework for understanding how these diverse and fascinating animals came to be.
Tetrapods are a diverse group of animals that includes all living and extinct amphibians, reptiles, birds, and mammals. Scientists have long been interested in the origin and evolution of tetrapods, and one of the most well-supported hypotheses is that they evolved from lobe-finned fish. In this answer, we will examine the pieces of evidence that support this hypothesis.
Fossil evidence: One of the most compelling lines of evidence for the evolution of tetrapods from lobe-finned fish is the fossil record. Fossils of several species of lobe-finned fish have been found that show a range of adaptations that are thought to have been important in the evolution of tetrapods. For example, some lobe-finned fish had limb-like fins with a series of bones that resemble the bones found in the limbs of tetrapods. Fossils of early tetrapods have also been found that show a transitional form between fish and tetrapods, with limbs that were used for both swimming and walking on land.
Genetic evidence: Another line of evidence for the evolution of tetrapods from lobe-finned fish comes from genetic studies. Genetic analysis has shown that tetrapods are more closely related to lobe-finned fish than to other types of fish. This supports the idea that tetrapods evolved from a group of lobe-finned fish that were more closely related to tetrapods than to other fish.
Comparative anatomy: A third line of evidence comes from comparative anatomy. Many of the features that are unique to tetrapods, such as limbs, lungs, and the ability to walk on land, are also found in lobe-finned fish. For example, the bones in the limbs of tetrapods are similar in shape and structure to the bones in the fins of lobe-finned fish. This suggests that the limbs of tetrapods evolved from the fins of lobe-finned fish.
Here you can learn more about tetrapods
https://brainly.com/question/15289594
#SPJ11
Prehistoric people used what for knives and arrowheads
Answers
Answer:
spears
Explanation:
ANSWER QUICKLY PLS!!Which of the following gives the correct explanation as to why the mature mRNA strand is much shorter than the DNA template strand?
a) mRNA is only copied from a single strand of the DNA.
b) mRNA contains less bases than the DNA sequence.
c) The final mRNA contains only exons, the introns are removed.
d) Because mRNA is partially degraded during transcription.
Answers
The mature mRNA strand is much shorter than the DNA template strand mRNA is only copied from a single strand of the DNA. The correct option is a.
What is mRNA?In molecular biology, messenger ribonucleic acid is a single-stranded RNA molecule that corresponds to a gene's genetic sequence and is read by a ribosome during the protein synthesis process.
Transcription produces RNA molecules that are released from the DNA template as single strands.
Furthermore, because RNA molecules are copied from a specific region of the DNA, they are much shorter than DNA molecules.
mRNA is the transcript of a specific region of DNA, usually a protein-coding region, rather than the entire DNA. It also does not contain DNA exon sequences. As a result, mRNA is shorter than DNA.
Thus, the correct option is a.
For more details regarding mRNA, visit:
https://brainly.com/question/12903143
#SPJ2
(02.10 LC)
What is the purpose of a charitable organization?
O Make a profit
O Help people in need
O Give tax breaks to donors
O Provide free data on products
Answers
Answer: Help people in need
Explanation:
Answer:
help people in need
Explanation:
a scientist is studying how sea slugs respond to predators. which hierarchical level of ecology does this represent?
Answers
The sea slugs react to predators is the subject of scientific research. This represents the ecology's community hierarchical level.
Ecosystem. It is a collection of all biotic and abiotic elements that are present and interacting in a certain space. The environment's living and nonliving elements are in contact with one another. Organism, Population, Community, and Biome are the four levels of biological structure with which ecology is primarily concerned.
Community ecologists are curious about the mechanisms underlying these interactions and the results. The struggle between individuals of the same species for a scarce resource is frequently the subject of questions regarding conspecific interactions. The cell is a living thing's lowest unit of organization. The tiniest living things, cells carry out all of an organism's metabolic functions.
Learn more about ecology Visit: brainly.com/question/29169644
#SPJ4
A treelike microscopic structure that extends through invagination of cell membrane into plant root cells to form a mutualistic symbiosis between a glomeromycetes fungi and a plant is called: arbuscular mycorrhizae basidiocarps conidiophores ectomycorrhizae O parasitic mycorrhizae
Answers
Answer:
Explanation:
A treelike microscopic structure that extends through invagination of cell membrane into plant root cells to form a mutualistic symbiosis between a glomeromycetes fungi and a plant is called:
Ectomycorrhizal (ECM) symbiosis is a mutualistic interaction between certain soil fungi and fine roots of perennial plants, mainly forest trees, by which both partners become capable of efficiently colonising nutrient-limited environments.
Why can asexual reproduction be advantageous?
Answers
Answer:
You do not need a mate.
Explanation:
You can reproduce without searching for a mate.
Every day 17 of the 20 liters of fluid that escape from your capillaries are reabsorbed by the capillaries. What happens to the remaining 3 liters
Answers
Every day 17 of the 20 liters of fluid that escape from your capillaries are reabsorbed by the capillaries. The remaining 3 liters of fluid that do not get reabsorbed by the capillaries in a day typically enter the lymphatic vessels.
The lymphatic system is responsible for collecting this excess fluid, known as lymph, and returning it to the bloodstream. Lymph vessels have one-way valves that prevent backflow, and they eventually drain into larger vessels called lymphatic ducts, which empty into veins near the heart.
Along the way, lymph nodes filter the lymph and remove any foreign particles or abnormal cells that may be present. In this way, the lymphatic system helps to maintain fluid balance in the body and contributes to the immune system by trapping and destroying pathogens.
To know more about the lymphatic ducts refer here :
https://brainly.com/question/13064587#
#SPJ11
Organisms in the class Chondrichthyes share many similarities and characteristics with what other kind of organism?ReptilsJawless fishBony fishAmphibians
Answers
Chondrichthyes share many characteristics with bony fish.
Some of the characteristics they share are:
• They are both vertebrates.
,• They are cold-blooded
,• Their hearts have compartments
,• They have caudal fins or tail fins with two lobes.
,• They belong to the Kingdom Animalia
what is the location and function of abdominal lymph nodes?
Answers
The brain's complexity arise from the: A. Communication between the hind mend and forebrain B. Functions of individual neurons. C. Division between 2halves of the cerebral cortex. D. Complex connections
Answers
Answer:
B. Functions of individual neurons.
Explanation:
The brain is the body's most essential organ and consists of 86 billion neurons. Which all connect to the CNS central nervous system and have complex instructions. These depend on the social and economic impacts. The brain has various physical and mental states and their international at functional levels lead to complex behavior.Answer:
Complex connections of simple pieces
Explanation:
a p e x
Which best helps scientists determine the age of fossil
Answers
Explanation:
To establish the age of a rock or a fossil, researchers use some type of clock to determine the date it was formed. Geologists commonly use radiometric dating methods, based on the natural radioactive decay of certain elements such as potassium and carbon, as reliable clocks to date ancient events.
The method that best helps scientists determine the age of fossils is radiometric dating. This method is highly accurate and reliable, providing precise numerical ages for fossils.
Radiometric dating is a technique that uses the decay of radioactive isotopes to calculate the absolute age of rocks, minerals, and fossils. Different isotopes have specific half-lives, which is the time it takes for half of the radioactive parent isotopes to decay into stable daughter isotopes.
By measuring the ratio of parent isotopes to daughter isotopes in a fossil or rock sample, scientists can determine how many half-lives have passed and calculate the age of the specimen.
This method is highly accurate and reliable, providing precise numerical ages for fossils and other geological materials, and helping scientists understand the timeline of Earth's history and the evolution of life on our planet.
Therefore, The method that best helps scientists determine the age of fossils is radiometric dating.
To know more about radiometric dating:
https://brainly.com/question/29766391
#SPJ6
Which characteristics allow the fetus to thrive despite a lower-than-average blood partial pressure of oxygen
Answers
Answer:
Just me know if this is not what you want.
Classify the following as a homogenous or heterogeneous mixture:
1. Cake Batter -
2. Cooking Batter -
3. Salt Water -
4. A Silver Ring -
Answers
Answer:
a.heterogeneous
b.heterogeneous
c.homogeneous
d.homogeneous