If gametes had the same number of chromosomes as body cells, and an organism had 12 chromosomes in its body cells, how many chromosomes would it have after three generations? How does this illustrate the necessity of meiosis for gamete formation?
What will be an ideal response?
The number of chromosomes would double each generation. After three generations, the organisms would have 96 chromosomes. Meiosis, also known as reduction division, produces gametes with half the number of chromosomes (1n) as the parent cell (2n) from which it comes. As two haploid gametes combine during fertilization to form a diploid (2n) zygote, the number of chromosomes for each species is maintained from generation to generation.
You might also like to view...
Since every research project is different, it is wise to develop a new and novel scale format to suit the particular needs of the existing situation
Indicate whether the statement is true or false
Describe at least three reasons why a corporation would want to buy back its own stock
A short, internal report is often written in letter format
Indicate whether the statement is true or false
In which stage of the product life cycle would you see low sales, negative profits, and large expenditures for promotion and distribution?
a. the business stage b. the maturity stage c. the decline stage d. the introduction stage e. the growth stage