cell divison and genome

What is meiosis?

A type of cell division that halves the chromosome number to produce haploid gametes.

where does meiosis occur

reproductive organs: ovaries,testes

what happens to the number of chromosomes

the chromosomes get halved

how is the full number of chromosomes restored in sexual reproduction

when the female and male gametes fuse during fertilisation

what are all gametes

genetically different to eachother

What happens to the genetic information before a cell divides in sexual reproduction?

Copies of the genetic information are made.

What happens to the number of chromosomes during the two cell divisions of meiosis?

The cell divides twice to form four gametes, each with a single set of chromosomes (half the normal number).

Why does the research for the human genome been studied

it will have great importance for medicine in the future

Give one example

Search for genes linked to different types of diseases

Understanding and treatment of inherited disorders

Use in tracing human migration patterns of the past