Question

In a grafted plant, stock has $48$ chromosomes while scion has $24$ chromosomes. The chromosome number for root cells and eggs are.

• A. $48$ and $24$
• B. $24$ and $24$
• C. $24$ and $12$
• D. $48$ and $12$

Answer 1

Answer: (D)

$48$ and $12$

The stock is the plant part containing strong root system and sicon is the plant part which contains better fruit and fruit yield. In root cells, the chromosome number remains constant, reduced half in egg cell. So the chromosome number for root cells are 48 and eggs are 12.

So the correct option is '48 and 12'.