tRNA works as an adaptor molecules for carrying amino acid to the mRNA templated during protein synthesis. It bears anticodon and recognizes the specific codon on mRNA.

Correct Option: C

tRNA works as an adaptor molecules for carrying amino acid to the mRNA templated during protein synthesis. It bears anticodon and recognizes the specific codon on mRNA.

Seal the ends of chromosomes. The telomere is a "ribonucleoprotein complex" composed of a protein component and an RNA primer sequence which acts to protect the terminal ends of chromosomes. This prevents chromosomal disintegration and prevents the ends of the chromosome from being processed as a double strand DNA break, which could lead to chromosome-tochromosome telomere fusions.

Correct Option: C

Seal the ends of chromosomes. The telomere is a "ribonucleoprotein complex" composed of a protein component and an RNA primer sequence which acts to protect the terminal ends of chromosomes. This prevents chromosomal disintegration and prevents the ends of the chromosome from being processed as a double strand DNA break, which could lead to chromosome-tochromosome telomere fusions.

NA

Correct Option: B

NA

Polygene is a gene, single dominant allele of which expresses only a unit of the trait, lethal genes on expression stop producing vital products essential for survival of an individual.

Correct Option: D

Polygene is a gene, single dominant allele of which expresses only a unit of the trait, lethal genes on expression stop producing vital products essential for survival of an individual.

Cistron is that segment of DNA which specifies synthesis of a polypeptide.

Correct Option: C

Cistron is that segment of DNA which specifies synthesis of a polypeptide.