[" 5-methyl uracil is "],[" (A) Another name of thymine "],[" (B) A purine base "],[" (C) A double ring structure "],[" (D) Both A and C "]

Identify the structures A, B, C and D.

5-Methyl uracil means ………. (A) Guanine (B) Uracil (C) Thymine (D) Cytosine

Read the below Statements about the structure of genetic material and identify the correct ones. I. Adenine and guanine are bases that have a double ring structure , cytosine, thymine and uracil are based with a single ring structure . II. An adenine nucleotide from DNA is the same as an adenine nucleotide from RNA , DNA adenine pairs with uracil and RNA adenine pairs with thymine. III. The base pairing that occurs in a double DNA helix and when RNA is synthesised during transcription follows the rule that a purine pairs with a pyrimidine. IV. The two Polynucleotides on a DNA molecule run in opposite directions so that the double helix formed has two strands that are parallel to each other.

Read the below Statements about the structure of genetic material and identify the correct ones. I. Adenine and guanine are bases that have a double ring structure , cytosine, thymine and uracil are based with a single ring structure . II. An adenine nucleotide from DNA is the same as an adenine nucleotide from RNA , DNA adenine pairs with uracil and RNA adenine pairs with thymine. III. The base pairing that occurs in a double DNA helix and when RNA is synthesised during transcription follows the rule that a purine pairs with a pyrimidine. IV. The two Polynucleotides on a DNA molecule run in opposite directions so that the double helix formed has two strands that are anti-parallel to each other.

I.U.P.A.C name of methyl cyanide is

Select the incorrect state w.r.t. mutagens (a) 5 methyl cytosine and 5 hydroxymethyl cytosine are natural base analogues (b) 5-bromouracil is a structural analogueof thymine © 2-aminopurine is an artificial base analogue of guanine (d) Nitrous acid deaminates adenine to hypoxanthine which is complementary to thymine. (e) Guanine is coverted to xanthine by Nitrous acid which pairs with cytosine

Identify the correct pair of statements (i) Alternate name of thymine is 5- methyl uracil (ii) Arachidonic acid molecule contains less number of carbons than palmitic acid (iii) Cellulose contains helices (iv) Aquaporin is a polypeptide

Identify the correct pair of statements (i) Alternate name of thymine is 5- methyl uracil (ii) Arachidonic acid molecule contains less number of carbons than palmitic acid (iii) Cellulose contains helices (iv) Aquaporin is a polypeptide