Nucleic acids are polymers of:

1. Nucleosides 2. Nucleotides
3. Amino acids 4. Polypeptides

Subtopic:  The DNA |
 89%
From NCERT

To unlock all the explanations of this course, you need to be enrolled.

Hints

To unlock all the explanations of this course, you need to be enrolled.


Which of the following is a pyrimidine base found in DNA?

1. Adenine 2. Guanine
3. Uracil 4. Cytosine

Subtopic:  The DNA |
 87%
From NCERT

To unlock all the explanations of this course, you need to be enrolled.

Hints

To unlock all the explanations of this course, you need to be enrolled.


To form a nucleoside, a nitrogenous base is linked to a pentose sugar:

1. Through a P-Glycosidic linkage at carbon atom number 1
2. Through a P-Glycosidic linkage at carbon atom number 5
3. Through an N-Glycosidic linkage at carbon atom number 1
4. Through an N-Glycosidic linkage at carbon atom number 5

Subtopic:  The DNA |
 75%
From NCERT

To unlock all the explanations of this course, you need to be enrolled.

Hints

To unlock all the explanations of this course, you need to be enrolled.


advertisementadvertisement

In a strand of nucleic acid, two nucleotides are linked together by:
1. 3’ – 5’ phosphodiester bond
2. 5’ – 3’ phosphodiester bond
3. 2’ – 5’ phosphodiester bond
4. 3’ – 1’ phosphodiester bond

Subtopic:  The DNA |
 71%
From NCERT

To unlock all the explanations of this course, you need to be enrolled.

Hints

To unlock all the explanations of this course, you need to be enrolled.


Identify the incorrect statement:

1. The DNA of the bacteriophage  ϕ X 174 has 5386 nucleotides.
2. Bacteriophage lambda DNA has 48502 base pairs.
3. The DNA of Escherichia coli has 4.6 X 103 base pairs.
4. Haploid content of human DNA is 3.3 X 109 base pairs.
Subtopic:  The DNA |
 82%
From NCERT

To unlock all the explanations of this course, you need to be enrolled.

Hints

To unlock all the explanations of this course, you need to be enrolled.