Javier is correct, genes are contained inside a chromosome. In other words, a chromosome contains many genes and a gene is a segment of DNA which provides the code to construct a protein.
Answer:
bacteria is living viruses are not
Explanation:
Answer:Genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism's offspring).
Explanation: I hope you understand!
It is called cell differentiation this makes embryonic cells would become specialized cells. This occurs threw a process that is called gene expression