NEET BIOLOGY

CELL STRUCTURES AND FUNCTION

BIO MOLECULES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The molecule located to the right is ____ and the portion labeled X is ____
A
DNA, nucleotide
B
DNA, nucleic acid
C
RNA, nucleotide
D
RNA, nucleic acid
Explanation: 

Detailed explanation-1: -This complex is called chromatin and is formed when the DNA wraps around nuclear proteins and then wraps around itself multiple times to condense the DNA into a smaller volume. Additionally, DNA chromosomes are often recognized and depicted as X-shaped structures.

Detailed explanation-2: -Each end of DNA molecule has a number. One end is referred to as 5’ (five prime) and the other end is referred to as 3’ (three prime). The 5’ and 3’ designations refer to the number of carbon atom in a deoxyribose sugar molecule to which a phosphate group bonds.

Detailed explanation-3: -DNA is made of chemical building blocks called nucleotides. These building blocks are made of three parts: a phosphate group, a sugar group and one of four types of nitrogen bases. To form a strand of DNA, nucleotides are linked into chains, with the phosphate and sugar groups alternating.

There is 1 question to complete.