Given diagram shows variations in the amount of DNA of a developing eukaryote. What does the arrow d

Question

Given diagram shows variations in the amount of DNA of a developing eukaryote. What does the arrow denote?\

Professor PC Thomas Classes · Answer

(b) : The given graph shows variations in the DNA content in the cells of an eukaryote. During sexual reproduction, gamete formation takes place by meiotic division under which initial amount of DNA (2C) increases to 4C during S phase, which in first meiotic division reduces to half, i.e., 2 C , divided among two daughter cells whereas chromosomal number reduces to half, i.e., from $2 n$ to n . During second meiotic division, the amount of DNA is further distributed equally from each daughter cells (from first meiotic division) to two daughter cells. The second meiotic division is equational, therefore the number of chromosome remains the same as produced at the end of meiosis I. Thus at the end of meiosis-II, each of the four haploid daughter cells contains one copy of every chromosome in the set (1C), rather than two.