Answer:
B. 6
Explanation:
Body cell of kangaroo contains 12 chromosomes while egg cells contain 6 chromosomes because in body cells, mitosis occurs while in sex cells such as sperm and egg cells, meiosis occurs. Meiosis is a type of cell division in which a single parent cell is divided into four daughter cells that are haploid in nature i. e. half number of chromosome. So that's why in egg cells of kangaroo, number of chromosome is 6.
