If a diploid organism has 14 chromosomes (2n=14) a. How many chromosomes will its gametes have? b. After meiosis I during gamete formation, how many chromosomes are in each daughter cell? c. After meiosis I during gamete formation, how many chromatids are in each daughter cell?
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If a diploid organism has 14 chromosomes (2n=14)
a. How many chromosomes will its gametes have?
b. After meiosis I during gamete formation, how many chromosomes are in each daughter cell?
c. After meiosis I during gamete formation, how many chromatids are in each daughter cell?
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- a. What type of cell division mitosis, meiosis I or meiosis II is shown in this figure? b. What is the diploid number of this organism? c. Provide labels for (i) and (ii)a. What phase of Meiosis II is the cell in? How do you know? b. Assuming all of the chromosomes present during Meiosis II are shown in the figure above, how many chromosomes (counting homologous pairs as two chromosomes) does a gamete from this organism have? c. Draw the same cell during the same phase of Meiosis I. Label the elements.In a zygote that begins with a complement of two homologous chromosomes pairs, A and a, and B and b: a.What chromosome compliments would you find in each somatic cells during growth? b.What combinations chromosomes would you expect to find in the gametes if the individual becomes an adult?
- In a zygote that begins with a complement of two homologous chromosomes pairs, A and a, and B and b: a. What chromosome compliments would you find in each somatic cells during growth? b. What combinations chromosomes would you expect to find in the gametes if the individual becomes an adult?Consider a diploid cell that has 2n = 4 chromosomes: one pair of metacentric chromosomes and one pair of acrocentric chromosomes. Suppose that this cell undergoes nondisjunction, giving rise to an autotriploid cell (3n). The triploid cell then undergoes meiosis. Draw the different types of gametes that could result from meiosis in the triploid cell, showing the chromosomes present in each type. To distinguish between the different metacentric and acrocentric chromosomes, use a different color to draw each metacentric chromosome; similarly, use a different color to draw each acrocentric chromosome.Consider a diploid cell that has 2 n = 4 chromosomes: one pair of metacentric chromosomes and one pair of acrocentric chromosomes. Suppose that this cell undergoes nondisjunction, giving rise to an autotriploid cell (3 n). The triploid cell then undergoes meiosis. Draw the different types of gametes that could result from meiosis in the triploid cell, showing the chromosomes present in each type. To distinguish between the different metacentric and acrocentricchromosomes, use a different color to draw each metacentric chromosome; similarly, use a different color to draw each acrocentric chromosome.
- Consider a diploid cell that has 2 n = 4 chromosomes: one pair of metacentric chromosomes and one pair of acrocentric chromosomes. Suppose that this cell undergoes nondisjunction, giving rise to an autotriploid cell (3 n). The triploid cell then undergoes meiosis. Draw the different types of gametes that could result from meiosis in the triploid cell, showing the chromosomes present in each type. To distinguish between the different metacentric and acrocentric chromosomes, use a different color to draw each metacentric chromosome; similarly, use a different color to draw each acrocentric chromosome.In a description of meiosis the terms ‘chromosome’ and ‘chromatid’ may be used. Distinguish between these two terms. There are 56 chromosomes in a mature elephant cell. If one of the elephants cells responsible for gamete production undergoes meiosis, how many chromosomes would be present in each cell after meiosis I, and then after meiosis II. Explain your reasoning.An organism has a diploid number of 20 in a primary oocyte. a. How many tetrads are present in the meiotic prophase l? b. How many dyads are present in the meiotic prophase II ? c. How many monads migrate to each pole during meiotic anaphase II ?
- If a cell with 24 chromosome pairs underwent meiosis, how many total chromatids would be in each gamete? What are three (3) differences between mitosis and meiosis?imagine a giraffe whose diploid is 30. A)Under what circumstances would the giraffe go through a process of meiosis? . b) what will be the final result of this meiosis for the giraffe (# of cells + # of chromosomes/cells)A diploid organism produces four gametes from one parent cell through the process of meiosis. Two gametes are found to have 7 chromosomes and two gametes are found to have 5 chromosomes. A) Is this the expected number of chromosomes that would be found in each gamete following a normal cycle of meiosis? If yes, explain why. If no, explain why not and describe how the gamete situation described above occurred. B) Determine the number of homologous chromosome pairs that the original parent cell contained, before meiosis began. Explain how you determined this value.