Answered: Which of the following is an accurate…

Science

Biology

Which of the following is an accurate model and description of anaphase II in Cape parrots?

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter6: Cytogenetics: Karyotypes And Chromosome Aberrations

Section: Chapter Questions

Problem 3QP: A colleague e-mails you saying that she has identified an interesting chromosome variation at 21q13....

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Concept explainers

Primate evolution

Primates are a relatively new species and first appeared in the fossil record nearly 55 million years ago. They may have originated as far back as the cretaceous period. Their fossils were observed in North America, Asia, and Europe. Long before the first monkeys and their prosimian relatives developed, most animal species thrived and died. The first primates did not exist until about 50-55 million years ago, even though the planet is 4.54 billion years old and the first life goes back at least 3.5 billion years. Dinosaurs had been extinct for 10 to 15 million years when this happened.

Question

Cape parrots are found in forests in South Africa. In a study of
Cape parrot genetics, biologists produced the karyotype shown
from somatic cells of a female Cape parrot.
an nk on an nN n
1
2 3
4 5 6
7
an nn
8 9
10
12
13
14
15
• .
16
17
18
19
20
21
22
23
24
25 26 27 28
Z W
29
Female Sex
Chromosomes

Which of the following is an accurate model and description of
anaphase II in Cape parrots?
A
58 homologous chromosomes
align in the center of each cell.
В
29 chromosomes with sister
chromatids align in the center
of each cell.
29 chromosomes separate their
sister chromatids and move to
opposite sides of each cell.
29 homologous chromosomes
separate and move to
opposite sides of each cell.

Expert Solution

Step 1

As per the Karyotype of the somatic cells from the cape parrots obtained, they have total 29 pair of chromosomes among which 28 are autosomes and 29th pair is sex chromosome. They have in total of 58 chromosomes.

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