Question

A new species of gecko has recently been discovered. All of the male individuals in the population are diploid (2n), but genetic analysis reveals that roughly half of all females in the population are tetraploids (4n). Males only produce viable offspring with diploid females. Diploid females can produce both haploid and diploid gametes. Triploids (3n) have never been observed in the population. If eight replicated chromosomes are observed in the cells from the liver of a normal diploid female during metaphase, which of the following are most likely TRUE?

Group of answer choices

1) the skin cells of diploid females will have 8 unreplicated chromosomes during G1 of the cell cycle

2) Eight (8) chromatids will be observed in a cell during anaphase

3) the sperm cells of diploid males will have 8 chromosomes.

4) the ploidy of tetraploid females would be 4n=8

Answer 1

Ans 1 option 1 is correct.

the skin cells of diploid females will have 8 unreplicated chromosomes during G1 of the cell cycle.

Because after s phase chromose will be replicated but their number don't get double until anaphase, when they are separated.

So means in metaphase chromosome no. Is 8, but they are replicated.

Other option are incorrect because, male sperm cell will have 4 chromosome, since they are haploid,and 16 chromatids will be observed during anaphase of female.