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Q1. The function of transfer RNA is to:

A. Turn DNA on and off.
B. Transfer nucleotides to nucleus.
C. Transmit coded information to cytoplasm.
D. Carry amino acids to ribosome.
E. Act as the site for protein synthesis.

Q2. Preceding to protein synthesis, the DNA:

A. attracts tRNAs with suitable amino acids.
B. adheres to ribosomes for protein synthesis.
C. serves as a template for the production of mRNA.
D. includes anticodons that become codons.
E. should first undergo replication.

Q3. The genetic code comprises of ____ bases which stand for one amino acid.

A. 20
B. 4
C. 3
D. 2
E. 1

Q4. If one strand of DNA consists of the base sequence AAGCAA, the complementary DNA strand has which of the given sequences?

A. UUCGUU
B. AAGCAA
C. TTCGTT
D. UTCGTU
E. TTCGTG

Q5. Gene mutations are:

A. Always deleterious.
B. Always beneficial.
C. Radiation induced changes only.
D. Modifications in the normal series of bases within a gene.
E. Modifications in the normal series of bases outside a gene.

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  • Category:- Biology
  • Reference No.:- M99343

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