How many chromosomes exist in human somatic cell? and in cells of other species?

human somatic cells contain 46 chromosomes in total which are organized into 23 pairs. In cells of other species it depends on the type of living organism it is. For example, in fruit flies, fruit fly somatic cells have eight chromosomes. So it really depends on the organism type.

the answer is a or when it says crossing over

69 is the correct math for the amino acids