EVERYDAY SCIENCE

SCIENCE

CELL BIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
B1.2.1 In what form is human DNA stored?
A
Alleles
B
RNA
C
Chromosomes
D
Genes
Explanation: 

Detailed explanation-1: -The first 22 pairs of chromosomes are called autosomes. The 23rd pair of chromosomes are known as the sex chromosomes, because they decide if you will be born male or female.

Detailed explanation-2: -At this point, nuclear division begins, and the parent cell is divided in half, forming 2 daughter cells. Each daughter cell will have half of the original 46 chromosomes, or 23 chromosomes. Each chromosome consists of 2 sister chromatids.

Detailed explanation-3: -Chromosomes are made up of a DNA-protein complex called chromatin that is organized into subunits called nucleosomes.

Detailed explanation-4: -It is the building block of the human body. Chromosomes also contain proteins that help DNA exist in the proper form. Humans typically have 23 pairs of chromosomes, or 46 chromosomes in total. Chromosomes are made up of long strands of DNA, which contain all the body’s genes.

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