Answer:
a=DNA exists in a cell's nucleus within structures called chromosomes . Each section of a chromosome that contains the code for the production of a particular protein is called a gene . ... Each chromosome in a pair carries the same types of genes.
b=Deoxyribonucleic acid, or DNA is the material that is located in the cell's nucleus that makes up the chromosomes and genes. Its molecule is in the shape of a double helix. The arrangement of nitrogenous bases in DNA determines an organism's traits. Every three bases is a triplet and codes for a particular amino acid.
c= Allele vs. Gene. A gene is a stretch of DNA or RNA that determines a certain trait. Genes mutate and can take two or more alternative forms; an allele is one of these forms of a gene. For example, the gene for eye color has several variations (alleles) such as an allele for blue eye color or an allele for brown eyes.
d=Genetics Play a Role. Meiosis is a process of cell division which yield non-identical daughter cells with one set of chromosomes. These are known as gametes, which are a female's egg cells and a male's sperm cells
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