Dna Rna Metal Ions

RNA and DNA are chiral molecules due to:

1. L- sugar component

2. Chiral bases

3. Chiral phosphate exter unit

4. D- sugar component

In DNA, the complementary bases are:

1. Adenine and thymine; guanine and cytosine

2. Adenine and thymine; guanine and uracil

3. Adenine and guanine, thymine and cytosine

4. Uracil and adenine; cytosine and guanine

The segment of DNA, that acts as the instrumental manual for the synthesis of the protein is:

1.	Nucleotide	2.	Ribose
3.	Gene	4.	Nucleoside

The central dogma of molecular genetics states that the genetic information flows from:

1. amino acid - proteins - DNA

2. DNA - carbohydrates - proteins

3. DNA - RNA - proteins

4. DNA - RNA - Carbohydrates

Given below are two statements:

Statement I:	A unit formed by the attachment of a base to 1' position of sugar is known as a nucleoside.
Statement II:	When nucleoside is linked to a phosphorous acid at 5' position of sugar moiety, we get nucleotide.

In the light of the above statements choose the correct answer from the options given below:

1.	Statement I is false but Statement II is true.
2.	Both Statement I and Statement II are true.
3.	Both Statement I and Statement II are false.
4.	Statement I is true but Statement II is false.