Question

a) How does binary fission differ from multiple fission ? (write 3 differences)
b) A stock contains 56 chromosomes and scion contain 24 chromosomes . How many
chromosomes we present in root and egg cells of the resultant plants respectively?​

Answer 1

Explanation:

a)Binary Fission:

• Parent cell divides to give rise to 2 daughter cells
• No part of parent cell is left unused
• eg amoeba , Euglena

Multiple Fission:

• Parent cell divides into .multiple daughter cells
• The residual cell coverings and some cytoplasm are left unused
• eg:Plasmodium,Amoeba(encysted)

b) The chromosome number in the vegetative parts of the scion will be same as the original i.e. 30. However, in gamates; egg cell or pollen the chromosome number will be half of the original plant (in this case scion) so, it will be 15.I hope yeh tumhare madad karenge