Previous Year Papers

Download Solved Question Papers Free for Offline Practice and view Solutions Online.

Test Series

Take Zigya Full and Sectional Test Series. Time it out for real assessment and get your results instantly.

Test Yourself

Practice and master your preparation for a specific topic or chapter. Check you scores at the end of the test.

Biomolecules

Short Answer Type

81.

What do you mean by Nucleoside?

138 Views

82.

What is meant by RNA and DNA?

118 Views

83.

What is the difference between ribose and deoxyribose?

134 Views

84.

What are different types of RNA found in the cell?

124 Views

85.
What type of bonds hold a DNA double helix together?

The two chains of a double helix are held together by hydrogen bonds between specific bases in each chain. A guanine base (G) is linked to cytosine (C) in the opposite chain with hydrogen bonds. Similarly, an adenine base (A) is linked to thymine base (T) in the opposite chain.