NEET BIOLOGY

Detailed explanation-1: -Every person has two copies of each gene, one inherited from each parent. Most genes are the same in all people, but a small number of genes (less than 1 percent of the total) are slightly different between people. Alleles are forms of the same gene with small differences in their sequence of DNA bases.

Detailed explanation-2: -If the two alleles are the same, the individual is homozygous for that allele. If the alleles are different, the individual is heterozygous.

Detailed explanation-3: -Every trait has two alleles in each person. Humans are diploid because they have two alleles at each genetic locus. Although a gene may have multiple alleles, a person can only carry two of them. This is due to the fact that chromosomes exist in pairs.

Detailed explanation-4: -Traits controlled by a single gene with more than two alleles are called multiple allele traits. An example is ABO blood type. Your blood type refers to which of certain proteins called antigens are found on your red blood cells.

Detailed explanation-5: -Each gene is inherited in two alleles, i.e., one from each parent. Thus, this means there would also be having two different alleles for a trait.