Cytogenetics 1 : chromosomes mitosis, meiosis and Karyotypes
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47 Terms
What are chromosomes?
Structures made out of DNA and protein that carry genetic information
What is a chromatin?
A chromatin is now DNA is packed inside the nucleus of a cell
How many chromosomes do human somatic cells have?
46 chromosomes
What does diploid mean?
Having two copies of each chromosome
What does haploid mean
Having one copy of each chromosome
Which cells are haploid in humans?
Gametes ( sperm and egg)
Purpose of mitosis
Produces 2 generically identical daughter cells for growth and repair
Is chromosome number maintained during mitosis
Yes
Order of mirotic stages
Prophase, metaphase, anaphase telophase, cytokinesis
Purpose of meiosis
Produces haploid games for sexual reproduction
What happens ho chromosome numbers during meiosis
It is halved
What type of cans are produced by meiosis
4 genetically different haploid cells
.what is a karyotype