NEET BIOLOGY

Detailed explanation-1: -Genomic structural variation is the variation in structure of an organism’s chromosome. It consists of many kinds of variation in the genome of one species, and usually includes microscopic and submicroscopic types, such as deletions, duplications, copy-number variants, insertions, inversions and translocations.

Detailed explanation-2: -Final answer: Genome, Chromosome, Gene, and Nucleotide is the correct order of organization of genetic material from largest to smallest.

Detailed explanation-3: -Two nitrogen-containing bases (or nucleotides) that pair together to form the structure of DNA. The four bases in DNA are adenine (A), cytosine (C), guanine (G), and thymine (T). These bases form specific pairs (A with T, and G with C).

Detailed explanation-4: -Answer and Explanation: B. Chromosome, DNA, Gene. Chromosomes are large molecules of DNA wrapped around proteins (histones in eukaryotes) to provide some structure.