Meiosis Transitional Reasoning Download PDF

Questions

1. 1.

   A reproductive biologist investigates gametogenesis in a diploid animal model whose somatic cells contain $2n = 12$ chromosomes and 4 pg of nuclear DNA during the $G_1$ phase. Cells complete interphase and proceed through meiosis under controlled laboratory conditions, dividing normally at each cytokinesis. Which pair of values represents the chromosome number and total nuclear DNA mass in a single cell arrested specifically at metaphase II?

   • A) 6 chromosomes and 4 pg of DNA
   • B) 12 chromosomes and 4 pg of DNA
   • C) 6 chromosomes and 2 pg of DNA
   • D) 12 chromosomes and 8 pg of DNA