These five concepts provide a modem interpretation of Mendelian postulates.
- Inheritance is governed by information stored in discrete factors called genes.
- Genes are transmitted from generation to generation on vehicles called chromosomes.
- Chromosomes, which exist in pairs in diploid organisms, provide the basis of biparental inheritance.
- During gamete formation, chromosomes are distributed according to postulates first described by Gregor Mendel, based on his nineteenth-century research with the garden pea.
- Mendelian postulates prescribe that homologous chromosomes segregate from one another and assort independently with other segregating homologous during gamete formation.
Based on these concepts, choose statements that correlate Mendel's four postulates with what is now known about genes, alleles, and homologous chromosomes.
Select the five correct statements.
a. Some gene pairs on nonhomologous chromosomes can aggregate after separation and mitosis or meiosis would stop.
b. Some genes have dominant and recessive alleles.
c. Unit factors occur in pairs.
d. Some possible gametic combinations are formed with higher probability if dominant alleles take part in meiosis.
e. During mitosis and meiosis, when chromosomes are visible in their characteristic shapes. members of a homologous pair have different sizes and exhibit opposite centromere locations.
f. Different gene pairs on non-homologous chromosomes will separate independently from each other during meiosis.
g. Alleles segregate from each other during gamete formation at anaphase
h. Dominant alleles can become codominant alleles during mitosis.
e. One gene pair separates independently from other gene pairs.
Answers
Answer:
b. Some genes have dominant and recessive alleles.
C. Unit factors occur in pairs.
e. During mitosis and meiosis, when chromosomes are visible in their characteristic shapes. members of a homologous pair have different sizes and exhibit opposite centromere locations
f. Different gene pairs on non-homologous chromosomes will separate independently from each other during meiosis.
g. Alleles segregate from each other during gamete formation at anaphase
Explanation:
Mendel's postulates of inheritance are: (1) Principles of Paired Factors (2) Principle of Dominance(3) Law of Segregation or Law of Purity of Gametes (Mendel’s First Law of Inheritance) and (4) Law of Independent Assortment (Mendel’s Second Law of Inheritance).
Each of these laws provide information on how inheritance of traits by offspring from parents occur.
Principle of paired factors:
A character is represented in an organism (diploid) by at least two factors. The two factors lie on the two homologous chromosomes at the same locus or position.
Principle of Dominance:
Dominant characters are those which always appear in every generatio whereas recessive characters may not appear in some generations e.g. F1 generation.
Law of segregation:
During the formation of gametes (egg or pollen), the paired genes separate or segregate randomly so that each gamete receives one or the other with equal likelihood
Law of Independent assortment:
During gamete formation, segregating pairs of unit factors (genes) assort independently of each other.
From the above consideration,
Option A is wrong because it doesn't correlate with the law of Independent assortment
Option B is correct based on the second postulate
Option C is correct based on the first postulate
Option D is wrong based on the law of segregation which assigns equal likely to gene separation
Option E is correct based on recent studies of genes
Option F is correct based on the law of Independent assortment
Option G is correct based on recent studies on genes
Option H is wrong because dominant genes remain dominant. Co-dominance occurs when allelic pairs are neither dominant nor recessive
Option 'e' is wrong because independent assortment occurs between pairs of genes with contrasting character not a gene pair having the same character where only segregation occurs.
Related Questions
The primary function of the cell wall is to o support and protect the cell. A store DNA. B direct the activities of the cell. C .help the cell move.
Answers
Answer:
Support and Protect the cell.
Explanation:
Cite some examples of genetic engineering? Write a complete response and use examples.
Answers
Answer:
Genetic engineering involves the manipulation of an organism's genes or DNA to achieve specific outcomes such as improved traits or the introduction of new characteristics. Here are a few examples of genetic engineering:
Genetically Modified Crops: Genetic engineering has been used extensively in agriculture to create crops with desirable traits, such as improved resistance to pests, diseases, and environmental stress. One example is Bt cotton, which has been engineered to produce a toxin that repels pests, reducing the need for chemical pesticides. Another example is Golden Rice, which has been engineered to produce beta-carotene, a precursor to vitamin A, to address deficiencies in developing countries.
Gene Therapy: Gene therapy involves the insertion of a new gene into a patient's cells to treat or prevent a disease. For example, in 2017, the US Food and Drug Administration (FDA) approved a gene therapy called Kymriah for the treatment of acute lymphoblastic leukemia. Kymriah involves modifying a patient's T cells to attack cancer cells.
Cloning: Cloning is the process of creating a genetically identical copy of an organism. In 1996, the famous cloned sheep, Dolly, was created by somatic cell nuclear transfer, in which the nucleus of a donor cell was inserted into an egg cell whose nucleus had been removed.
Gene Editing: Gene editing involves making precise changes to an organism's DNA. The CRISPR-Cas9 system is a powerful gene-editing tool that has been used to create mice with genetic mutations that mimic human diseases, such as muscular dystrophy and cystic fibrosis.
Synthetic Biology: Synthetic biology involves designing and creating new biological systems or modifying existing ones. One example is the creation of bacteria that can produce biofuels, such as ethanol or butanol, from plant material. Another example is the creation of bacteria that can break down plastic waste.
These examples highlight the diverse applications of genetic engineering, from improving crop yields and disease treatments to creating new biological systems.
Explanation:
2023
A student placed a prepared slide on the stage of a light microscope. Describe how to adjust the microscope to view the slide at a magnification of x400.
Answers
Here are the steps for viewing a slide at 400X magnification: In a compound and light microscope, prepare a slide and keep it near the objective lens at all times. Put a 10X magnification ocular lens in the area of the microscope.
How does 400x magnification work?You can see a very detailed image of the specimen on your slide thanks to the 400x total magnification that a high-power optical system and a 10x eyepiece provide.
Which focus knob at 40x 400x is simpler to use?The coarse focus knob or fine focus knob, respectively, will be the ones that are simpler to use at 40X and 400X. At low magnifications, like 40X, the coarser focus knob is simpler to operate because it makes it easy to focus the specimen more quickly.
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A scientist is studying an organism and has classified it as an animal. Which statement must be true about the organism?
Answers
Answer:
It is multicellular.
Explanation:
What is an animal?
Animals are multicellular eukaryotes whose cells are bound together by collagen. Animals dominate human conceptions of life on Earth because of their size, diversity, abundance, and mobility. The presence of muscles and mobility is one of the primary characteristics of the animal kingdom.
How do the three parts of the evolution recipe work together?
Answers
Answer: Three key parts of the recipe for evolution are variation, selection, and inheritance.
Explanation:
VARIATION:- The first part of the recipe is variation. Variation refers to the differences that exist between individuals within a SPECIES. These variations can be caused byGENETIC MUTATION, environmental factors, or a combination of both. Some variations may be advantageous and provide a better chance of survival, while others may be disadvantageous and decrease the chances of survival.
Selection: The second part of the recipe is selection. Selection refers to the process by which individuals with advantageous variations are more likely to survive and reproduce, passing on their advantageous traits to their offspring. This is known as natural selection, and it is the driving force behind evolution.
Inheritance: The third part of the recipe is inheritance. Inheritance refers to the passing down of genetic traits from one generation to the next. Offspring inherit genetic traits from their parents, including any advantageous variations that their parents may have had.
Why do scientists try to test many individual hypotheses
Answers
Answer:
In the process of making discoveries, scientists make hypotheses. Scientists test hypotheses by making predictions. They need to test many individual hypotheses because they need to gain strong inferences, as a means to enhance the effectiveness of the scientific investigation.
Read the statement
An elephant is walking on the hot African plains in search of food. As it does so, its body temperature increases. As it walks, it comes across a small pond.
What should this elephant do to BEST maintain homeostasis?
Select one:
A. It should jump into the pond to cool off.
B. It should use its trunk to take a drink.
C. It should flap its ears to create a breeze.
D.It should move at a slower pace to conserve energy.
Thanks for helping me!
Answers
Answer:
I think it would be "B".
Explanation:
if the elephant is by a pond it would most likely drink the water to stay cool.
A cell that is 30% water is in a solution in a beaker that is 30 % salt. Is the cell hypertonic,
Hypotonic or Isotonic to the solution?
Answers
Are their any multicellular chemoautotrophs? If so, describe them. If not, why?
Answers
It is not possible to have a multicellular chemoautotrophs.
What are chemoautotrophs?The term chemoautotrophs refers to those organisms that use the energy from the sun to convert inorganic elements into compounds that are useful in the soil. There are several kinds of chemoautotrophs such as nitrosomonas and nitrobacter.
When we talk about multicellular organisms we are talking about the organisms that have more than one cell. The unicellular organisms are the organisms that have only one cell and we know that bacteria and certain kinds of fungi possesses only one cell.
Since we know that the chemoautotrophs are bacteria and bacteria are singe celled organisms, it is not possible to have a multicellular chemoautotrophs.
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Simone is creating a model to track the movement of carbon atoms in an ecosystem. Which statement best explains the role of plants in Simone's model?
Answers
Although I cannot see the model for Simone's experiment, I can offer the insight that the most likely role of plants in the model is that they consume the carbon atoms and produce oxygen.
How do plants affect the carbon in the atmosphere?Plants are known to have a great effect on the carbon levels of the atmosphere. The correlation is that the more plants are present, the less carbon is free in the air. The reason for this is that plants use carbon dioxide as a substrate to manage the process of photosynthesis.As a by-product, after consuming carbon dioxide and completing photosynthesis, plants release oxygen into the atmosphere.Therefore, we can confirm that the most likely role of plants in the model created by Simone, is that they will consume carbon atoms in the form of carbon dioxide in order to sustain photosynthesis, which releases oxygen.
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pls help click the link answer
Answers
Answer:
1. Transfer
2. Share
3. Subscript
4. Positive
e Sciences NSC MDE/June In certain plants, an oval shape is dominant (H) over round shape (h) and thick cell walls (B) are dominant over thin (b) A cross was carried out between two heterozygous plants for both characteristics. 2.3.1 Give the: (a) Allele for round shape.
Answers
The allele for round shape in this case would be lowercase 'h' (h), as it is recessive to the dominant oval shape allele (H).
In this scenario, the dominant allele for oval shape is represented by 'H,' while the recessive allele for round shape is represented by 'h.' Since the oval shape is dominant, an individual with one copy of the dominant allele (H) and one copy of the recessive allele (h) will display the oval shape phenotype. The round shape phenotype will only be expressed when an individual carries two copies of the recessive allele (hh). In the given cross between two heterozygous plants (Hh), there is a 25% chance of producing offspring with the round shape phenotype if both parents pass on their recessive allele (h) to the offspring.For more such questions on Allele:
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Can someone help me recreate this? I can’t screenshot it. Do the glucose and NOT any of the lactic acid data.
Answers
An organic acid is lactic acid. Its chemical formula is CH3CH(OH)COOH. It is miscible with water and has a white solid state.
Thus, It transforms into a colorless solution when dissolved. In the process of production, both synthetic and natural resources are used. Due to the presence of a hydroxyl group next to the carboxyl group, lactic acid is an alpha-hydroxy acid (AHA).
It serves as a synthetic intermediate in a number of biochemical and organic synthesis industries. Lactate (or the lactate anion) is the conjugate base of lactic acid. The resulting acyl group is known as lactoyl.
Lactic acid has two enantiomers and is chiral. One is called l-lactic acid, (S)-lactic acid, or (+)-lactic acid, while the other, which is d-lactic acid, (R)-lactic acid, or ()-lactic acid, is its mirror image.
Thus, An organic acid is lactic acid. Its chemical formula is CH3CH(OH)COOH. It is miscible with water and has a white solid state.
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all living things are able to
Answers
Answer:
Eat, Grow, Die, Reproduce, Create Energy
Explanation:
Explain the effect of a country with a transitional economy on the globalization process.
1. It furthers the presence of mixed economic systems across the world.
2. It furthers the globalization process of the global economy and accelerates global interdependence.
3. It furthers the globalization process of the global economy but decelerates global interdependence.
4. It leads to more countries with command economies and negatively impacts the transition towards globalization.
SOME ONE HELP PLEASE!!
Answers
The effect of a country with a transitional economy on the globalization process is to further the globalization process of the global economy and accelerate global interdependence.
What is transitional economy?A transitional economy denotes an economic system undergoing a metamorphosis from a centrally controlled economy to a market-oriented one. This undertaking can be arduous and intricate, demanding considerable time for the economy to complete the full transition.
Nevertheless, the advantages of embracing a market economy can be noteworthy, encompassing amplified economic expansion, enhanced effectiveness, and heightened ingenuity.
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Can intersex male get their partners pregant?
Answers
Answer:
yes
Explanation:
they can produce sperm
What is the surface of the Earth called?
Crust
Mantel
Inner core
Outer core
Answers
Answer:
crust
Explanation:
Which is a biotic factor?
Answers
Answer:
a living organism that shapes its environment
Explanation:
hope this helps
Pls need help the question is up there already giving BRAINLEST to a good answer
Answers
Answer:
The last choice. Think of planets, the bigger they are, the stronger they attract to one another
Explanation:
hope it helps
Imagine a diploid organism that has 6 pairs of homologous chromosomes in their somatic cells. Given
this information, indicate if the following statements are TRUE or FALSE:
[ Select)
A. The species can have up to 12 different alleles for each gene.
[ Select)
B. The genes of this species have, on average, 6 different alleles.
[Select]
C. The species haploid number is 1n=6.
[ Select]
D. The genes of this species cluster into 6 distinct groups of linked
genes.
[Select]
E. At most, an individual can have 2 alleles for any gene.
Select]
F. The organism can have up to 12 genes for any given trait.
[Select ]
G. The species can have up to 6 chromosomes with the same gene.
Select)
H. Gametes produced by each individual would have 12
chromosomes.
Answers
Answer:
A. False
B. False.
C. True.
D. False.
E. True
F. True
G. True
H. False.
Explanation:
Diploid organism has almost double the cells than in the Haploid. The number of chromosomes in each diploid cell are also nearly twice the other cells. Diploid is any cell or organism which has two sets of chromosomes. Gamete is considered as the sex cell. It has ability to pair up and formulate the reproductive cells.
How does ATP provide energy for living organisms?
Answers
Answer: adenosine triphosphate (ATP), is an energy-carrying molecule found in the cells of all living things. ATP captures chemical energy obtained from the breakdown of food molecules and releases it to fuel other cellular processes.
Explanation: Cells require chemical energy for three general types of tasks: to drive metabolic reactions that would not occur automatically; to transport needed substances across membranes; and to do mechanical work, such as moving muscles. ATP is not a storage molecule for chemical energy; that is the job of carbohydrates, such as glycogen, and fats. When energy is needed by the cell, it is converted from storage molecules into ATP. ATP then serves as a shuttle, delivering energy to places within the cell where energy-consuming activities are taking place. ATP is a nucleotide that consists of three main structures: the nitrogenous base, adenine; the sugar, ribose; and a chain of three phosphate groups bound to ribose. The phosphate tail of ATP is the actual power source that the cell taps. Available energy is contained in the bonds between the phosphates and is released when they are broken, which occurs through the addition of a water molecule (a process called hydrolysis). Usually, only the outer phosphate is removed from ATP to yield energy; when this occurs ATP is converted to adenosine diphosphate (ADP), the form of the nucleotide having only two phosphates. ATP can power cellular processes by transferring a phosphate group to another molecule (a process called phosphorylation). This transfer is carried out by special enzymes that couple the release of energy from ATP to cellular activities that require energy.
on what main belief did muhammad base the religion of lslam
Answers
Answer:
He came to believe that he was called on by God to be a prophet and teacher of a new faith, Islam, which means literally "submission."
(50 POINTS) Which of the following could be alive because it displays one of the signs of life? An object that _____.
A. has branches
B. does not move when touched
C. moves away from loud noises
D. makes noise
Answers
Answer:
A.
Explanation:
An object with branches
Which event provides evidence that matter can reflect waves?
O A. A bat finds a moth using echolocation.
OB. A fish appears to be farther from a boat than it is.
O C. A whale's song is heard hundreds of miles away.
O D. A dog's bark is barely heard through double-pane windows.
Answers
Answer:
A bat finds a moth using echolocation.
Explanation:
l took the test
Answer:
A
Explanation:
Describe the main principles of natural selection: Populations evolve, individuals do not: Variations naturally occur within a population: All species have a capacity to overproduce: Adaptations help individuals successfully compete for survival: Beneficial adaptations will become more common in a population:
Answers
The main principles of natural selection are: populations evolve, individuals do not; variations naturally occur within a population; all species have the capacity to overproduce; adaptations help individuals successfully compete for survival; and beneficial adaptations will become more common in a population.
The main principles of natural selection, as proposed by Charles Darwin, are as follows:
Populations evolve, but individuals do not: Natural selection acts on the genetic variations present within a population over time. While individuals may exhibit variations, it is the changes in the gene frequencies of a population that drives evolution.
Variations naturally occur within a population: Genetic variations arise due to random mutations, genetic recombination, and other mechanisms. These variations contribute to differences in traits among individuals within a population.
All species have the capacity to overproduce: Most species have the potential to produce more offspring than can survive to reproductive age. This leads to competition for limited resources, such as food, mates, and shelter.
Adaptations help individuals successfully compete for survival: Individuals with traits or characteristics that enhance their survival and reproductive success have a higher likelihood of passing those traits to the next generation. These advantageous traits, known as adaptations, can be physical, behavioral, or physiological.
Beneficial adaptations will become more common in a population: Over time, individuals with advantageous traits have a higher chance of surviving, reproducing, and passing those traits on to their offspring. This process leads to an increase in the frequency of beneficial adaptations in a population, resulting in evolutionary changes.
These principles of natural selection provide a framework for understanding how populations evolve and adapt to their environments over time.
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When the body is attacked by a foreign substance, the _____ defenses are the first to react.
Answers
Answer:
Correct answer is "non specific defenses"
Answer:
non specific
Explanation:
When the body is attacked by a foreign substance, the non specific defenses are the first to react.
Professionals in the field of psychology maintain a set of core values and ethics that differs slightly from
those held by social workers, because the needs and challenges of psychology patients are typically greater
than for clients who receive social services. Among the core values of psychologists are the efforts to treat
clients with fairness and honesty, to respect clients, and to
O discuss one client's problems with other clients
O do no harm to clients
O dispense prescriptions to clients
O criticize clients
Answers
Among the core values of psychologists are the efforts to treat clients with fairness and honesty, to respect clients, and to do no harm to clients and is denoted as option B.
Who is a Psychologist?This is referred to as a trained mental health professional who helps people handle their mental health challenges through the use of various types of methods and techniques.
They are involved in the treatment of clients with fairness and honesty which is a sign of respect and are not involved in dispensing of prescriptions to clients which is instead done by psychiatrists thereby making option B the correct choice.
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Name a storage protein in our bodies.
Explain the function of this storage protein in our bodies.
Where is this storage protein found?
please help
Answers
Answer:
Storage proteins serve as biological reserves of metal ions and amino acids, used by organisms. They are found in plant seeds, egg whites, and milk. Ferritin is an example of a storage protein that stores iron. Iron is a component of heme, which is contained in the transport protein, hemoglobin and in cytochromes.
Explanation:
Hope this helps.
What is beryllium? I need 1 paragraph please, I'll mark u as brainliest
Answers
Explanation:
Beryllium is a silvery-white metal. It is relatively soft and has a low density. Uses. Beryllium is used in alloys with copper or nickel to make gyroscopes, springs, electrical contacts, spot-welding electrodes and non-sparking tools. Origin of the name: The name is derived from the Greek name for beryl, 'beryllo'. It was discovered by Nicholas Louis Vauquelin in the year 1797
Unit 1 Review Notebook Check
I Will give 40 points for this