Select each correct answer. More than one answer may be correct.
Meiosis, which occurs during sexual reproduction, allows for a great variety of possible gene combinations. Which of the following can increase genetic variation during meiosis?

A.) the exchange of genes during chromosomal crossover
B.)the transposition of a gene from one place in an organism's genome to another
C.)the duplication of a gene caused by an error in chromosomal crossover
D.) the deletion of a gene caused by an error in chromosomal crossover

Larry goes to the doctor complaining that he can't see the right side of the visual field with either eye. where in the visual signal-processing pathway is larry's problem occurring?

Fan egg cell containing the (n+1) number of chromosomes combines with a sperm cell containing the (n) number of chromosomes, what is the result of this union? a) all future somatic cells of the organism will contain the (2n + 1) number of chromosomes. b) all future somatic cells of the organism will contain the (2n - 1) number of chromosomes. c) only certain somatic cells of the organism will contain the (2n + 1) number of chromosomes. d) all future somatic cells of the organism will contain the normal diploid number of chromosomes.

What is the number of phosphates in an atp molecule