The RNA polymerase II transcribes _______ RNA.

[Molecular-Basis-of-Inheritance] [class-xii ]

• r
• t
• m
• sn
Correct Option: C  [ m ]

Remark: Pol II makes mRNA (hnRNA).

The RNA polymerase III transcribes _______ RNA.

[Molecular-Basis-of-Inheritance] [class-xii ]

• m
• r
• t
• hn
Correct Option: C  [ t ]

Remark: Pol III makes tRNA.

The process of removing introns is called _______

[Molecular-Basis-of-Inheritance] [class-xii ]

• Capping
• Tailing
• Splicing
• Termination
Correct Option: C  [ Splicing ]

Remark: Splicing removes introns.

Methyl guanosine triphosphate is added to the _______ end of hnRNA.

[Molecular-Basis-of-Inheritance] [class-xii ]

• 3'
• 5'
• Both
• None
Correct Option: B  [ 5' ]

Remark: The 5' cap is methyl guanosine triphosphate.

Poly A tail is added to the _______ end of hnRNA.

[Molecular-Basis-of-Inheritance] [class-xii ]

• 5'
• 3'
• Both
• None
Correct Option: B  [ 3' ]

Remark: Poly A tail is on the 3' end.

The codon is a _______ of bases.

[Molecular-Basis-of-Inheritance] [class-xii ]

• Doublet
• Triplet
• Singlet
• Quadruplet
Correct Option: B  [ Triplet ]

Remark: The codon is a triplet.

AUG codes for _______

[Molecular-Basis-of-Inheritance] [class-xii ]

• Valine
• Methionine
• Phenylalanine
• Lysine
Correct Option: B  [ Methionine ]

Remark: AUG codes for Methionine.

UAA, UAG, and UGA are _______ codons.

[Molecular-Basis-of-Inheritance] [class-xii ]

• Start
• Stop
• Sense
• Code
Correct Option: B  [ Stop ]

Remark: They are stop codons.

The genetic code is _______, meaning one codon codes for only one amino acid.

[Molecular-Basis-of-Inheritance] [class-xii ]

• Ambiguous
• Unambiguous
• Degenerate
• Universal
Correct Option: B  [ Unambiguous ]

Remark: Unambiguous means one codon = one AA.

Some amino acids are coded by more than one codon, hence the code is _______

[Molecular-Basis-of-Inheritance] [class-xii ]

• Universal
• Degenerate
• Specific
• Ambiguous
Correct Option: B  [ Degenerate ]

Remark: Degeneracy means multiple codons = one AA.