Which of the following set of options is used in translation

• hnRNA, tRNA, rRNA

• mRNA, tRNA, rRNA

• mRNA, tRNA, hnRNA

• hnRNA, rRNA, tRNA

If the sequence of bases in the coding strand of a double stranded DNA is 5'-GTTCGAGTC-3', the sequence of bases in its transcript will be

• 5'-GACUCGAAC-3'

• 5'-CAAGCUCAG-3'

• 5'-GUUCGAGUC-3'

• 5'-CUGAGCUUG-3'

Which of the following is a palindromic sequence?

• 5' - CGTATG - 3'

  3' - GCATAC - 5'

• 5' - CGAATG - 3'

  3' - CGAATG - 5'

• 5' - GAATTC - 3'

  3' - CTTAAG - 5'

• 5' - GACTAC - 3'

  3' - TACGAC - 5'

Assertion: One codon may code for more than one amino acid.

Reason: A codon is degenerate and ambiguous.

• If both assertion and reason are true and reason is the correct explanation of assertion.

• If both assertion and reason are true but reason is not the correct explanation of assertion.

• If assertion is true but reason is false.

• If both assertion and reason are false.

Beads on string like structures of A are seen in B, which further condense to form chromosomes in C stage of cell division

•            A              B             C

  Chromonema Chromatin Metaphase

•         A              B             C

  Chromatin Chromatid Metaphase

•            A              B             C

  Chromonema Chromosome Anaphase

•            A              B             C

  Chromonema Chromatid Anaphase.

RNA interference is essential for the

• cell proliferation

• cell defence

• cell differentiation

• micropropagation

Chromatin is made up of

• DNA and protein

• DNA and histone

• DNA, RNA, protein

• RNA, histone and oil bodies

318.

Which of the following is correct regarding genetic code?

• UUU is the initiation codon which also codes for phenylalanine.

• There are 64 triplet codons and only 20 amino acids

• Three random nitrogen bases specify the placement of one amino acid

• UAA is the nonsense codon which also codes for methionine

Assertion : DNA fingerprinting involves identifying differences in specific regions in DNA sequence.

Reason : DNA fingerprinting is the basis of paternity testing.

• If both assertion and reason are true and reason is the correct explanation of assertion.

• If both assertion and reason are true but reason is not the correct explanation of assertion.

• If assertion is true but reason is false.

• If both assertion and reason are false.

What is incorrect about the following figure representing DNA replication?

• The direction of DNA replication in strand (i)

• The direction of DNA replication in strand (ii)

• Discontinuous replication of strand (i)

• Discontinuous replication of strand (ii)