The Okazaki fragments in DNA chain growth

• result in transcription

• polymerize in the 3’ - to - 5’ direction and forms replication fork

• prove semi-conservative natuire of DNA replication

• prove semi-conservative natuire of DNA replication

The two polynucleotide chains in DNA are

• parallel

• discontinuous

• antiparallel

• antiparallel

A sequential expression of a set of human genes occurs when a steroid molecule binds to the

• transfer RNA

• messenger RNA

• DNA sequence

• DNA sequence

Which antibiotic inhibits interaction between t-RNA and m-RNA during bacterial protein synthesis?

• Erythromycin

• Neomycin

• Streptomycin

• Streptomycin

In which mode of inheritance do you expect more maternal influence among the off spring?

• Autosomal

• Cytoplasmic

• Y-linked

• Y-linked

Amino acid sequence, in protein synthesis is decided by the sequence of

• t-RNA

• m-RNA

• c-DNA

• c-DNA

One turn of the helix in a B-form DNA is approximately

• 20 nm

• 0.34 nm

• 3.4 nm

• 3.4 nm

238.

Antiparallel strands of a DNA molecule means that

• one strand turns anti-clockwise

• the phosphate groups of two DNA strands, at their ends, share the same position

• the phosphate groups at thestart of two DNA strands are in opposite position (pole)

• the phosphate groups at thestart of two DNA strands are in opposite position (pole)

The final proof for DNA as the genetic material came from the experiments of

• Griffith

• Hershey and Chase

• Avery, Mcleod and McCarty

• Avery, Mcleod and McCarty

Which of the following are not polymeric?

• Nucleic acids

• Proteins

• Polysaccharides

• Polysaccharides