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NEET - Biology Biotechnology Test Yourself

18927.RNA that picks up specific amino acid from amino acid pool of cytoplasm to carry it to ribosome during protein synthesis is
tRNA
mRNA
rRNA
gRNA
18928.Semiconservative DNA / Chromosome replication using 14N was demonstrated by
Messelson
Tylor
Messelson and stahl
Hershey and Chase
18929.Similarity between DNA and RNA is that both have
Similar sugars
Similar mode of replication
Similar pyrimidines
Polymers of nucleotides
18930.Successive nucleotides are covalently linked through
Glycosidic bonds
Phosphodiester bonds
Hydrogen bonds
Nitrogen bonds
18931.Termination of polypeptide chain is brought about by
UUG, UAG and UCG
UAA, UAG and UGA
UUG, UGC and UCA
UCG, GCG and ACC
18932.The basic unit of a nucleic acid is
Pentose sugar
Nucleoid
Nucleoside
Nucleotide
18933.Pyrimidine base present in RNA in place of thymine of DNA is
Uracil
Adenine
Cytosine
Guanine
18934.The codon for anticodon 3 UUUA – 5 is
5 AAAU- 3
5 UUUA- 3
3 UAAD- 5
3 AUUU- 5
18935.The common feature amongst nucleus, chloroplast and mitochondria is
Lamellae
DNA
Cristae
All the above
18936.The enzyme taking part in joining two ends of DNA is
Ligase
Polymerase
Gyrase
Helicase
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