Foundations of chromosomal theory:
1- Chromosomes are found in somatic cells in the form of identical pairs (2N).
2- The sex cells (gametes) contain half the number of chromosomes (n) as a result of the meiosis division, where the pairs of chromosomes are separated into two equal groups of chromosomes distributed on the gametes.
3- Each pair of chromosomes behaves independently when it passes through the gametes.
4- When fertilization (fusion of the male and female syllables), the number of chromosomes multiplies again.
5- Genes are located on chromosomes and one chromosome may carry hundreds of genes.
1- Chromosomes are found in somatic cells in the form of identical pairs (2N).
2- The sex cells (gametes) contain half the number of chromosomes (n) as a result of the meiosis division, where the pairs of chromosomes are separated into two equal groups of chromosomes distributed on the gametes.
3- Each pair of chromosomes behaves independently when it passes through the gametes.
4- When fertilization (fusion of the male and female syllables), the number of chromosomes multiplies again.
5- Genes are located on chromosomes and one chromosome may carry hundreds of genes.
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