Answer:
the scrotum provides a slightly cooler temperature for optimal sperm production
Explanation:
Answer:
Mutation causes brand new alleles the others just modify the rates at which preexisting alleles appear in the population.
Meiosis I is the reduction division, where the pairing of homologous chromosomes, crossing over and genetic recombination takes place, resulting in two daughter cells with half the number of chromosomes. Meiosis II is like mitosis, where sister chromatids get separated leading to 4 genetically diverse haploid cells from a diploid parent cell.
I am not sure but I think it is c