Which of the following is correct regarding genetic code?

(1) UUU is the initiation codon which also codes for phenylalanine.

(2) There are 64 triplet codons and only 20 amino acids.

(3) Three random nitrogen bases specify the placement of one amino acid.

(4) UAA is the nonsense codon which also codes for methionine.

Which of the following set of options is used in translation?

(1) hnRNA, tRNA, rRNA

(2) mRNA, tRNA, rRNA

(3) mRNA, tRNA, hnRNA

(4) 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

(1) 5’-GACUCGAAC-3’

(2) 5’-CAAGCUCAG-3’

(3) 5’-GUUCGAGUC-3’

(4) 5’-CUGAGCUUG-3’

Match the triplet codons listed in column I with their amino acids mentioned in column II and select the correct option from the given codes.

(1) A-(v), B-(iii), C-(i), D-(ii)

(2) A-(v), B-(iii), C-(i), D-(iv)

(3) A-(ii), B-(iv), C-(i), D-(v)

(4) A-(i), B-(ii), C-(iii), D-(iv)

AUG codes for

(1) valine

(2) histidine

(3) phenylalanine

(4) methionine

In the lac operon model, lactose molecules function as:-

(1) inducers, which bind with the operator
gne

(2) repressors, which bind with the operator
gene

(3) inducers, which bind with the repressor
protein

(4) corepressors, which bind with repressors
protein

hn-RNA undergoes two additional processing. Out of which, in one of them an unusual nucleotide (methyl guanosine triphosphate) is added to the 5’-end of hnRNA. This is known as

(1) capping

(2) tailing

(3) splicing

(4) termination

Which of the following is a genetic material?

(1)Dideoxyribo nucleic acid

(2)Deoxyribo nucleic acid

(3)Deoxyribulose nucleic acid

(4)Deoxyribosome nucleic acid

Polymerisation of which of the following produces Nucleic acids?

(1)Nucleosides

(2)Nucleotides

(3)DNA and RNA

(4)Both 1 and 2

Which of the following is a genetic material in most of the organisms?

(1)DNA

(2)RNA

(3)Both DNA and RNA

(4)Nucleic Acid