Question 31 (1 point) Page When sex cells combine to produce biffsprings, each sex cell will contribute one fourth of the normal number of chromosomes. the normal number of chromosomes half the normal number of chromosomes. twice the normal number of chromosomes

Half the normal number of chromosomes. Sex cells (gametes - sperm and egg) are haploid, meaning they contain half the number of chromosomes as the parent organism's somatic (body) cells. When the sperm and egg combine during fertilization, the resulting offspring receives a full set of chromosomes, half from each parent.<br />