Wobble Hypothesis

Q. The contrasting characters in a key which are generally in a pair is called a

1. lead
2. doublet
3. couplet
4. triplet

Q. Regarding the assertion and reason, select the correct option.
Assertion $\left[A\right]$: There are only about 40 tRNA molecules for the 61 coding codons.
Reason $\left[R\right]$: The third base of the codon/anticodon have some unconventional base pairing.

1. Both A and R are true and R explains A
2. Both A and R are true, but R does not explain A
3. A is true and R is false
4. Both A and R are false

Q. Which among these is the wobble pair?

1. 3’ nucleotide of the tRNA and 5’ nucleotide of the mRNA
2. 5’ nucleotide of the tRNA and 3’ nucleotide of the mRNA
3. 5’ nucleotide of the tRNA and 5’ nucleotide of the mRNA
4. 3’ nucleotide of the tRNA and 3’ nucleotide of the mRNA