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Which if the following is not a source of genetic variation in meiosis? O polar body...
Which processes lead to most genetic variation in sexually reproducing organisms? Select all that apply. random...
Which processes lead to most genetic variation in sexually reproducing organisms? Select all that apply. random fertilization cytokinesis crossing over independent assortment of chromosomes in meiosis
Question 8 10 pts Select all of the events that are unique to meiosis. In other...
Question 8 10 pts Select all of the events that are unique to meiosis. In other words, which events only occur in meiosis? Hint: • Genetic Variation video Compare Mitosis and Meiosis e video Events Unique to Meiosis e video Textbook chapter 11 section 11.1 Attaching of the kinetochore microtubules to the kinetochore. Lining up of chromosomes on the metaphase plate Synapsis of homologous chromosomes. Crossing over Producing recombinant chromosomes Separating of tetrads Pulling of sister chromatids towards opposite sides...
You see a recombination frequency of 50% between two genes. Which of the following possibilities can...
You see a recombination frequency of 50% between two genes. Which of the following possibilities can you exclude? That the genes are located close together on the same chromosome That the genes are on different chromosomes O That the genes are assorting independently That the genes are located on the same chromosome, but very far apart Meiosis contributes to genetic diversity by: o Reducing the number of chromosomes for karyogamy (fusion of nuclei) with another gamete O Recombining homologous chromosomes...
Processes that determine heredity and contribute to genetic variation Meiosis guarantees that in a sexual life...
Processes that determine heredity and contribute to genetic variation Meiosis guarantees that in a sexual life cycle, offspring will inherit one complete set of chromosomes (and their associated genes and traits) from each parent. The transmission of traits from parents to offspring is called heredity. Another important aspect of meiosis and the sexual life cycle is the role these processes play in contributing to genetic variation. Although offspring always resemble their parents, they are genetically different from both of their...
When does the separation of homologous chromosomes occur? • O A. Meiosis 2 • O B....
When does the separation of homologous chromosomes occur? • O A. Meiosis 2 • O B. Before Meiosis • . C. Meiosis 1 D. After Meiosis Reset Selection If a cell has 24 pairs of chromosomes in its diploid state, how many chromosomes will it have after Meiosis 2? • • • • A. 24 B. 12 C. 48 D.6 Dan What structure is responsible for separating the chromosomes during Meiosis? A. Spindle Fibers B. Cytoplasm C. Metaphase plate •...
Draw the process of meiosis I, including each step. In this drawing denote what happens with...
Draw the process of meiosis I, including each step. In this drawing denote what happens with the chromosomes and what structures form and what chromosomes are separated. Denote the two specific phases of meiosis where crossing-over and assortment occurs. Describe in detail what occurs in both of these events, including the structures created, and how they provide genetic variation in sexual reprodiction. Also denote where Mendel's law of segregation and law of independent assortment occur.
Meiosis generates genetic diversity by: O random segregation of homologous chromosomes in meiosis II Oneither O...
Meiosis generates genetic diversity by: O random segregation of homologous chromosomes in meiosis II Oneither O crossing over between non-sister chromatids in meiosis 1 both
BIOLOGY - Independent assortment and genetic variation
Consider a diploid cell where 2n = 6. During metaphase I of meiosis, as the pairs of homologous chromosomes line up on the metaphase plate, each pair may orient with its maternal or paternal homolog closer to a given pole. There are four equally probable arrangements of the homologous pairs at metaphase I. (Note that this problem assumes that no crossing over has occurred.)The cells below show the eight possible combinations of chromosomes that the daughter cells of meiosis II...
Which of the following is not one of the ways that meiosis can introduce variability into...
Which of the following is not one of the ways that meiosis can introduce variability into a population via sexual reproduction? meiosis never introduces genetic variation production of diploid gametes independent assortment along the metaphase plate crossing over random fertilization The role of meiosis in Mendel's law of segregation is that it allows crossing over to occur. it allows genes to be duplicated. it separates sister chromatids and exact copies of genes it separates homologous chromosomes and therefore gene alleles...
How is genetic variation increased during sexual reproduction? Choose ALL that apply. Select one or more:...
How is genetic variation increased during sexual reproduction? Choose ALL that apply. Select one or more: a. Crossing over occurs. b. The reproduction of cells through binary fission resulting in two different daughter cells. c. Independent assortment of homologous chromosomes during meiosis. d. Alleles are inherited from two parents instead of one. e. The pairing of sister chromatids. Which of the following images shows crossing over? Select one: Consider a gene with two alleles that show complete dominance. When two...
Which processes lead to most genetic variation in sexually reproducing organisms? Select all that apply. random fertilization cytokinesis crossing over independent assortment of chromosomes in meiosis
Question 8 10 pts Select all of the events that are unique to meiosis. In other words, which events only occur in meiosis? Hint: • Genetic Variation video Compare Mitosis and Meiosis e video Events Unique to Meiosis e video Textbook chapter 11 section 11.1 Attaching of the kinetochore microtubules to the kinetochore. Lining up of chromosomes on the metaphase plate Synapsis of homologous chromosomes. Crossing over Producing recombinant chromosomes Separating of tetrads Pulling of sister chromatids towards opposite sides...
You see a recombination frequency of 50% between two genes. Which of the following possibilities can you exclude? That the genes are located close together on the same chromosome That the genes are on different chromosomes O That the genes are assorting independently That the genes are located on the same chromosome, but very far apart Meiosis contributes to genetic diversity by: o Reducing the number of chromosomes for karyogamy (fusion of nuclei) with another gamete O Recombining homologous chromosomes...
Processes that determine heredity and contribute to genetic variation Meiosis guarantees that in a sexual life cycle, offspring will inherit one complete set of chromosomes (and their associated genes and traits) from each parent. The transmission of traits from parents to offspring is called heredity. Another important aspect of meiosis and the sexual life cycle is the role these processes play in contributing to genetic variation. Although offspring always resemble their parents, they are genetically different from both of their...
When does the separation of homologous chromosomes occur? • O A. Meiosis 2 • O B. Before Meiosis • . C. Meiosis 1 D. After Meiosis Reset Selection If a cell has 24 pairs of chromosomes in its diploid state, how many chromosomes will it have after Meiosis 2? • • • • A. 24 B. 12 C. 48 D.6 Dan What structure is responsible for separating the chromosomes during Meiosis? A. Spindle Fibers B. Cytoplasm C. Metaphase plate •...
Meiosis generates genetic diversity by: O random segregation of homologous chromosomes in meiosis II Oneither O crossing over between non-sister chromatids in meiosis 1 both
Which of the following is not one of the ways that meiosis can introduce variability into a population via sexual reproduction? meiosis never introduces genetic variation production of diploid gametes independent assortment along the metaphase plate crossing over random fertilization The role of meiosis in Mendel's law of segregation is that it allows crossing over to occur. it allows genes to be duplicated. it separates sister chromatids and exact copies of genes it separates homologous chromosomes and therefore gene alleles...
How is genetic variation increased during sexual reproduction? Choose ALL that apply. Select one or more: a. Crossing over occurs. b. The reproduction of cells through binary fission resulting in two different daughter cells. c. Independent assortment of homologous chromosomes during meiosis. d. Alleles are inherited from two parents instead of one. e. The pairing of sister chromatids. Which of the following images shows crossing over? Select one: Consider a gene with two alleles that show complete dominance. When two...
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