LIFE SCIENCE

OBJECTIVE LIFE SCIENCE

GENETICS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which is true about DNA?
A
Only animals have DNA in their cells
B
DNA research is simple and quick
C
DNA contains many genes
D
None of the above are true.
Explanation: 

Detailed explanation-1: -Genes are segments of deoxyribonucleic acid (DNA) that contain the code for a specific protein that functions in one or more types of cells in the body. Chromosomes are structures within cells that contain a person’s genes. Genes are contained in chromosomes, which are in the cell nucleus.

Detailed explanation-2: -A gene is a section of DNA made up of a sequence of As, Cs, Ts and Gs. Your genes are so tiny you have around 20, 000 of them inside every cell in your body! Human genes vary in size from a few hundred bases to over a million bases. Every human has around 20, 000 genes and 3, 000, 000, 000 bases.

There is 1 question to complete.