Sexual reproduction depends on meiotic division, on forming the gametes (male-female), where the number of chromosomes is reduced to its half (n) and during fertilization, the male gamete fuses with the female gamete, therefore...
What are the gens? They are the parts of DNA present on the chromosomes and they control the individual’s hereditary traits, And the hereditary traits are transferred from the parents to their offspring through...
The dominant trait is the trait that appears in all the individuals of the first generation, The recessive trait is the trait that disappears completely in the individuals of the first generation.
The sperms The testes of the adult human male produce about 2 billion sperms per day , the lifetime of a single sperm inside the female vagina ranges from 2 to 6 hours, this...
