NEET BIOLOGY

Detailed explanation-1: -Gene expression is the mechanism by which genes control traits. The DNA of a gene contains a nucleotide sequence corresponding to a specific amino acid sequence of a protein via the genetic code, consisting of three codons, each of which specifies a particular amino acid.

Detailed explanation-2: -Gene-The set of information that controls a trait; in the DNA. 4. Alleles-The different forms of a gene.

Detailed explanation-3: -allele, also called allelomorph, any one of two or more genes that may occur alternatively at a given site (locus) on a chromosome. Alleles may occur in pairs, or there may be multiple alleles affecting the expression (phenotype) of a particular trait.

Detailed explanation-4: -Phenotype refers to an individual’s observable traits, such as height, eye color and blood type. A person’s phenotype is determined by both their genomic makeup (genotype) and environmental factors.