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During what stage do homologous chromosomes separate?

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Wize University Biology Textbook > Meiosis

Meiosis II

6 Activities

Wize University Biology Textbook > Meiosis

Meiosis I

6 Activities

During what stage do homologous chromosomes separate?
More Meiosis II Questions:
At the end of meiosis the number of chromosome in daughter cells is ___ compared to the parent cell.
Meisois
At the end of meiosis II you get four daughter cells. These daughter cells are
haploid
Crossing over
Crossing over occurs in which phase of meiosis?
Complete the following table:
Which of the following is FALSE regarding meiosis prophase II? Choose all that apply
Which of the following describes a newly fertilized human zygote?
Meiosis practice problem 1
What are the genotypes of the possible daughter cells that would result from the double crossover shown below?
Practice: Meiosis (Telomeres)
A hedgehog has a diploid number of 48 chromosomes. How many telomeres would you find in a a hegdehog gamete at the beginning of telophase II?
Which of the following is different between mitosis metaphase and meiosis metaphase II
Which of the following describes a cell at the end of prophase II?
Which of the following describes the differences between mitosis and meiosis?
1. Mitosis occurs in autosomal cells while meiosis in gamete cells
2. Mitosis involves undergoing cell division twice
Practice: Meiosis
Place the following stages of meiosis in order in which they occur.
Which of the following is present in meiosis, but not mitosis?
Capsella bursa-pastoria and Capsella grandiflora are two very closely related species. Flow cytometry analysis shows that somatic cells in G1 phase of C. bursa-pastoria cells contain a 0.80 pg of DNA, while C. grandiflora has 0.44 pg.
What does this suggest about the ploidy of these two species?
What would the C-value of these two species be?
Practice: Meiosis (Non-disjunction vs. Mis-division)
Julia has triple X syndrome, meaning she has three X chromosomes. On one X she has an SNP that she shares with her paternal grandmother, one has an SNP that she shares with her maternal grandfather. When did this aneuploidy happen to cause Julia to have this syndrome?
Meiosis I in the mother
Meiosis I in the father
What are the major sources of genetic variation resulting from sexual reproduction?
i. Recombination during prophase I
ii. Recombination during prophase II
Two-toed sloths have a chromosome number 2n=50. How many chromatids would be found at the start of prophase II, and immediately at the end of meiosis II?
If you overheard someone in your biology class say that “plants are haploid and make gametes by mitosis, while animals are diploid and make gametes by meiosis”, would you agree or disagree with this statement, and why?
Which of the following characteristics are the same in both meiosis II and mitosis?
Imagine an alien from a distant planet that has 70 pairs of chromosomes. This alien has a mother with a serious mutation on chromosome 67. This alien, however, does not carry this deleterious allele on chromosome 67. Which of the following best describes how this chromosome was able to “repair itself”?
Anna has an extra chromosome 12. Of her three chromosome 12’s she shares an SNP
that is found on one of her mother’s chromosome 12’s. If Anna’s aneuploidy is due to a
single mistake in meiosis, which of the following steps of meiosis did the mistake occur?
What are the major sources of genetic variation resulting from sexual reproduction?
i. Recombination during prophase I
ii. Recombination during prophase II
Two-toed sloths have a chromosome number 2n=50. How many chromatids would be
found at the start of prophase II, and immediately at the end of meiosis II?
If you overheard someone in your biology class say that “plants are haploid and make
gametes by mitosis, while animals are diploid and make gametes by meiosis”, would you
agree or disagree with this statement, and why?
An alien from a distant planet has 70 pairs of chromosomes. How many individual
chromatids would a single cell undergoing meiosis have at metaphase II?
Which of the following characteristics are the same in both meiosis II and mitosis?
Individuals with Down’s syndrome have a trisomy of chromosome 21 that arose from a single error in meiosis. Imagine a child, Bella, who has parents with normal karyotypes. Only 1 of Bella’s chromosomes carries the same SNP as is found in her father. Which of the follow stages of meiosis could this error have occurred?
Meiosis I in the mother
Meiosis I in the father
Practice: Meiosis (n and C-values)
The frog species Xenopus tropicalis has 10 chromosomes and this species is viable with 4 copies of its genome. An individual with four copies of its genome would have what ploidy and what C-value coefficents at anaphase II of meiosis?
What are the two phases of meiosis that are the source of most of the variation in the four resulting daughter cells?
Which of the following is false regarding meiosis prophase II?
Which of the following is different between mitosis metaphase and meiosis metaphase II
Which of the following describes a cell at the end of prophase II?
What is the difference between mitosis metaphase and meiosis metaphase II?
Practice: Meiosis II
A haploid set of duplicated chromosomes is pulled apart by microtubules into individual sister chromatids. What process is most likely occurring?
An alien from a distant planet has 70 pairs of chromosomes. How many individual
chromatids would a single cell undergoing meiosis have at metaphase II?
Which of the following is present in meiosis, but not mitosis?
More Meiosis I Questions:
Which of the following is present in meiosis, but not mitosis?
At the end of meiosis the number of chromosome in daughter cells is ___ compared to the parent cell.
Meiosis
Pairs of homologous chromosome move to the equator of the cell during
Meisois
At the end of meiosis II you get four daughter cells. These daughter cells are
haploid
Crossing over
Crossing over occurs in which phase of meiosis?
Complete the following table:
Which of the following describes a newly fertilized human zygote?
Which of the following statements about homologous chromosomes is true?
During what stage do homologous chromosomes separate?
Which of the following definitions is incorrect?
Which of the following is not a method for enhancing genetic diversity?
Practice: Crossover
What are the genotypes of the possible daughter cells that would result from the single crossover shown below?
Select all that apply.
Which of the following describes the differences between mitosis and meiosis?
1. Mitosis occurs in autosomal cells while meiosis in gamete cells
2. Mitosis involves undergoing cell division twice
Practice: Meiosis
Place the following stages of meiosis in order in which they occur.
In which of the following groups would you find meiosis?
1. Humans
2. Photosynthetic cyanobacteria
Which of the following is present in meiosis, but not mitosis?
Capsella bursa-pastoria and Capsella grandiflora are two very closely related species. Flow cytometry analysis shows that somatic cells in G1 phase of C. bursa-pastoria cells contain a 0.80 pg of DNA, while C. grandiflora has 0.44 pg.
What does this suggest about the ploidy of these two species?
What would the C-value of these two species be?
Practice: Meiosis (Non-disjunction vs. Mis-division)
Julia has triple X syndrome, meaning she has three X chromosomes. On one X she has an SNP that she shares with her paternal grandmother, one has an SNP that she shares with her maternal grandfather. When did this aneuploidy happen to cause Julia to have this syndrome?
Meiosis I in the mother
Meiosis I in the father
What are the major sources of genetic variation resulting from sexual reproduction?
i. Recombination during prophase I
ii. Recombination during prophase II
Two-toed sloths have a chromosome number 2n=50. How many chromatids would be found at the start of prophase II, and immediately at the end of meiosis II?
If you overheard someone in your biology class say that “plants are haploid and make gametes by mitosis, while animals are diploid and make gametes by meiosis”, would you agree or disagree with this statement, and why?
Drosophila have a red versus white eye color gene that is sex linked. A white-eyed female mates with a red-eyed male giving a red-eyed female offspring with the genotype XXY. Where was the mistake in meiosis?
Which of the following is the most likely to give rise to Copy Number Variations?
Imagine an alien from a distant planet that has 70 pairs of chromosomes. This alien has a mother with a serious mutation on chromosome 67. This alien, however, does not carry this deleterious allele on chromosome 67. Which of the following best describes how this chromosome was able to “repair itself”?
Anna has an extra chromosome 12. Of her three chromosome 12’s she shares an SNP
that is found on one of her mother’s chromosome 12’s. If Anna’s aneuploidy is due to a
single mistake in meiosis, which of the following steps of meiosis did the mistake occur?
What are the major sources of genetic variation resulting from sexual reproduction?
i. Recombination during prophase I
ii. Recombination during prophase II
Two-toed sloths have a chromosome number 2n=50. How many chromatids would be
found at the start of prophase II, and immediately at the end of meiosis II?
If you overheard someone in your biology class say that “plants are haploid and make
gametes by mitosis, while animals are diploid and make gametes by meiosis”, would you
agree or disagree with this statement, and why?
An alien from a distant planet has 70 pairs of chromosomes. How many individual
chromatids would a single cell undergoing meiosis have at metaphase II?
Which of the following best describes how a chromosome is able to “repair itself”?
Individuals with Down’s syndrome have a trisomy of chromosome 21 that arose from a single error in meiosis. Imagine a child, Bella, who has parents with normal karyotypes. Only 1 of Bella’s chromosomes carries the same SNP as is found in her father. Which of the follow stages of meiosis could this error have occurred?
Meiosis I in the mother
Meiosis I in the father
Practice: Meiosis (n and C-values)
The frog species Xenopus tropicalis has 10 chromosomes and this species is viable with 4 copies of its genome. An individual with four copies of its genome would have what ploidy and what C-value coefficents at anaphase II of meiosis?
What are the two phases of meiosis that are the source of most of the variation in the four resulting daughter cells?
Which of the following is a source of genetic variability?
What do chiasmata indicate?
During what stage do homologous chromosomes separate?
Which of the following definitions is incorrect?
Which of the following is not a method for enhancing genetic diversity?
Which of the following is present in meiosis, but not mitosis?
Which of the following is the physical basis for Mendel's principle of segregation?
Practice: Meiosis I
What do chiasmata indicate?
Meiosis practice problem 1
What are the genotypes of the possible daughter cells that would result from the double crossover shown below?
In what stage of meiosis does independent assortment of chromosomes occur?
An alien from a distant planet has 70 pairs of chromosomes. How many individual
chromatids would a single cell undergoing meiosis have at metaphase II?
During what stage do homologous chromosomes line up beside each other?
Which of the following is present in meiosis, but not mitosis?