AP BIOLOGY

Detailed explanation-1: -Expert-Verified Answer. Answer: Answer is 30. Goats have 60 chromosomes in their body cells, so there would be 30 chromosomes in their gametes (egg or sperm cells).

Detailed explanation-2: -The modal chromosome number of the goat (Capra hircus) is 60. The autosomes are acro-centric or telocentric, the X chromosome acrocentric, and the Y chromosome submetacentric. Quinacrine-mustard staining and fluorescence microscopy make it possible to identify 28 out of 30 chromosome pairs.

Detailed explanation-3: -Goats have a diploid chromosome number of 60.

Detailed explanation-4: -The present day cattle and goat possess the same diploid chromosome number (2n = 60) and structurally similar autosomes, except that a small subcentromeric portion of cattle chromosome nine has been translocated to goat chromosome 14.

Detailed explanation-5: -Cytogenetic evidence suggests that the caprids (sheep and goats) evolved from a common ancestor with a 2n=60 karyotype. Although goats (Capra) retained the primitive 2n=60 karyotype, sheep (Ovis) underwent a sequential reduction in the number of chromosomes by means of acrocentric translocation.