Question

If a stock has $2n=48$ and scion microspore mother cell has $2n=24$; then root cell and the microspores will have ______ chromosomes respectively.

• A. $12,48$
• B. $48,12$
• C. $24,12$
• D. $24,96$

Answer 1

The correct option is A $12,48$

In angiosperms, the root cells divide by the process of mitosis whereas the microspore cells divide by the process of meiosis. The number of chromosomes in daughter cells produced after mitosis in root cells will be the same as the parent cell, whereas the number of chromosomes in daughter cells produced after meiosis in microspore mother cell be one half. Thus the number of chromosomes in root cells and microspores will be 48 and 12 respectively.

So, the correct option is '48, 12',