DNA Double Helix

Q.

The pitch of a human DNA molecule is:

1. 360 degrees

2. 34 Angstrom

3. 3.4 Angstrom

4. 36 degrees

Q.

What is asparagine a basic amino acid or acidic amino acid ?

Q. One strand of DNA has sequence of nucleotides 3' ATTCGCTAT 5’, then other strand of DNA has

1. 3' TAGCACGTA 5’
2. 5' TAGCACGTA 3’
3. 3' TAAGCGATA 5’
4. 5' TAAGCGATA 3’

Q. A DNA segment of $340A^{\circ }$ will have _________ base pairs.

1. 10
2. 34
3. 100
4. 340

Q. "Gene is a segment of DNA", " Nucleotide is the two base pairs present in a DNA strand", So is Gene = Nucleotide( atleast approximately)?

Q. Find the correctly matched pairs and choose the correct option.
A. Zygotene – Pairing of homologous chromosomes
B. Leptotene – Dissolution of the complex synaptonemal takes place
C. Diplotene – Bivalent chromosomes appear as dyad
D. Diakinesis – Terminalization of chiasmata takes place

1. A and D
2. B and C
3. A and B
4. A and C

Q. Distance between two successive nitrogenous bases or base pairs of DNA is ___.

1. $34\stackrel{\circ }{A}$
2. $3.4\stackrel{\circ }{A}$
3. $10\stackrel{\circ }{A}$
4. $5\stackrel{\circ }{A}$

Q. A nucleic acid molecule contains methylated uracil, it is labeled as

1. Either DNA or RNA
2. DNA
3. RNA of prokaryotes
4. RNA