A change in the amount of yolk and its distribution in the egg will effect :
A change in the amount of yolk and its distribution in the egg will effect :
Fertilization
Formation of zygote
Pattern of cleavage
Number of blastomeres produced
Solution
The amount and distribution of yolk in the egg significantly affect the pattern of cleavage. The yolk is a nutrient-rich substance that influences how the egg divides after fertilization.
Holoblastic cleavage occurs when there is little yolk, resulting in complete division of the egg.
Meroblastic cleavage occurs when there is a large amount of yolk, leading to partial division of the egg.
The distribution of yolk also determines whether cleavage is bilateral, radial, or spiral.