Question

How does a cell reproduce in human body?

Answer 1

Cell forms more cells by dividing. It divides in two ways, namely mitosis and meiosis.
Cell division by mitosis leads to growth of an individual, cell replacement and repair. Cell division by meiosis leads to production of gametes.
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Answer 2

One characteristic that is shared by all animals is that they are multicellular. Each cell that composes an animal is called a somatic or body cell — skin, muscle, and nerve cells are some examples. Each animal is composed of many different types of body cells that display amazing variation in form and function. However, despite this diversity, every body cell of an animal is identical when it comes to the organization of the hereditary material DNA. In the nucleus of each body cell, DNA is organized into chromosomes, which exist as chromosome pairs — with each member of a pair carrying the same set of genes.

This organization of chromosomes represents the animal’s genome and it carries all of the information necessary for reproducing another animal of that type. In terms of chromosome pairs, all animals of the same type are alike – that is, their body cells contain the same number and arrangement of chromosomes. The human genome, for example, consists of 46 chromosomes arranged in 23 pairs. The genome of a fruit fly consists of eight chromosomes arranged in four pairs.

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