Question

The formation of ova, or female reproductive cells, occurs when diploid germ cells undergo meiosis. In female swamp wallabies (Wallabia bicolor), diploid germ cells contain 101010 chromosomes.

At the beginning of meiosis I, a female wallaby germ cells contains
Choose 1 answer:
Choose 1 answer:

(Choice A)
A
101010 homologous pairs of chromosomes comprising a total of 202020 chromatids

(Choice B)
B
555 homologous pairs of chromosomes comprising a total of 202020 chromatids

(Choice C)
C
101010 homologous pairs of chromosomes comprising a total of 101010 chromatids

(Choice D)
D
555 homologous pairs of chromosomes comprising a total of 101010 chromatids

Answer 1

(Choice B) 555 homologous pairs of chromosomes comprising a total of 202020 chromatids

Step-by-step explanation:

Homologous chromosome are those two chromosomes which have same gene but different in shape and appearance. Chromatids are the identical copies of chromosome. Single chromosome splits into double number of chromatids. In 555 pairs, 101010 chromosomes are present so 101010 chromosomes splits into 202020 chromatids.