kristasearles
contestada

An organism has 40 chromosomes in each body cell. How many chromosomes are in each of the organisms sex cells?

A) 10

B) 20

C) 40

D) 80

Respuesta :

Tuniss
The chromosomes in the sex cells would be half the chromosomes in the body cells; so since each body cell has 40 chromosomes and half of that is 20, there's your answer. It's B. 20

Answer:

Option B

Explanation:

Suppose if number of chromosomes is represented by "n"

Then, the total number of chromosomes in a haploid cell is "n"

and the number of chromosomes in a diploid cell is two times the number of chromosomes in haploid cell i.e "2n"

Normal body cells are diploid therefore they have 2n chromosomes

Here 2n is equal to 40 . Therefore, n will be equal to 20

Sex cells are haploid and hence they will have n number of chromosomes i.e 20

hence, option B is correct

Otras preguntas