NEET BIOLOGY

CELL STRUCTURES AND FUNCTION

CELL DIVISION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The material of chromosomes which is made up of proteins and DNA is called ____
A
Centromere
B
Chromatid
C
Karyotype
D
Chromatin
Explanation: 

Detailed explanation-1: -Each chromosome consists of a single, enormously long linear DNA molecule associated with proteins that fold and pack the fine DNA thread into a more compact structure. The complex of DNA and protein is called chromatin (from the Greek chroma, “color, ” because of its staining properties).

Detailed explanation-2: -Final answer: Chromosomes are made up of both DNA and proteins.

Detailed explanation-3: -Chromatin refers to a mixture of DNA and proteins that form the chromosomes found in the cells of humans and other higher organisms. Many of the proteins-namely, histones-package the massive amount of DNA in a genome into a highly compact form that can fit in the cell nucleus.

Detailed explanation-4: -Chromosomes are made up of a DNA-protein complex called chromatin that is organized into subunits called nucleosomes.

Detailed explanation-5: -Chromatin is the complex of genomic DNA with proteins called histones, where each histone-bound DNA molecule is referred to as a chromosome.

There is 1 question to complete.