The substitution of one purine N_2 base with | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) In genetics,a point mutation is a change in a single nucleotide base pair. Transitions are a specific type of point mutation where a purine is rep

Vedclass · Accepted Answer

Transition

Vedclass · Answer

(A) In genetics,a point mutation is a change in a single nucleotide base pair. Transitions are a specific type of point mutation where a purine is replaced by another purine (e.g.,$A \leftrightarrow G$) or a pyrimidine is replaced by another pyrimidine (e.g.,$C \leftrightarrow T$). Transversions,on the other hand,involve the substitution of a purine for a pyrimidine or vice versa. Therefore,the correct term for the substitution of a purine with another purine or a pyrimidine with another pyrimidine is Transition.

The substitution of one purine $N_2$ base with another purine base or one pyrimidine $N_2$ base with another pyrimidine base is known as:

Similar Questions

Assertion $(A):$ The split gene arrangement represents probably an ancient feature of the genome.
Reason $(R):$ $\text{hnRNA}$ undergoes additional processing called as capping and tailing.
Choose the correct option.

In sickle-cell anemia,what is the sequence of the defective nitrogen base on the $DNA$ strand that does not act as a template?

Study the given figure of a nucleosome and select the option that correctly identifies the parts $A, B$ and $C$.

$A$: Teminism is the unidirectional flow of information.
$R$: It requires $DNA$-dependent $RNA$ polymerase enzyme.

Assertion : Histones are basic proteins of major importance in packaging of eukaryotic $DNA$. $DNA$ and histones comprise chromatin forming the bulk of eukaryotic chromosome.
Reason : Histones are of five major types $H_1, H_2A, H_2B, H_3$ and $H_4$.

Vedclass Test Series

Exam Paper Generator

Online Exam Module