AP BIOLOGY

Detailed explanation-1: -The eggs of most animals are giant single cells, containing stockpiles of all the materials needed for initial development of the embryo through to the stage at which the new individual can begin feeding.

Detailed explanation-2: -But, scientifically-speaking, the egg is a single cell laid down by the female; when fertilized by the single cell or nucleus of the male sperm, it remains a single cell but then has its full complement of chromosomes and genes.

Detailed explanation-3: -The edible hen’s egg is a single cell containing both protein and fat component. The egg develops into a chicken with the division of the single cell leading to the development of the embryo. Hence, the entire egg behaves like a single cell.

Detailed explanation-4: -A Hen’s egg is a single cell just like the ostrich egg which is really big in size. But it becomes multicellular after it hatches to form a chick then the chick will have a group of cells. Before the fertilisation or you can say when the egg is unfertilised then the egg contains a single celled haploid ovum.

Detailed explanation-5: -Biologists like to argue over the semantics of this, but it is generally accepted that the yolk of an egg is one single, massive cell, thousands of times bigger than typical cells.