LIFE SCIENCE

OBJECTIVE LIFE SCIENCE

DIVERSITY AMONG LIFE FORMS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
True or False:All cells have DNA.
A
True
B
False
C
Either A or B
D
None of the above
Explanation: 

Detailed explanation-1: -Nearly every cell in a person’s body has the same DNA. Most DNA is located in the cell nucleus (where it is called nuclear DNA), but a small amount of DNA can also be found in the mitochondria (where it is called mitochondrial DNA or mtDNA).

Detailed explanation-2: -So, the correct answer is ‘False’.

Detailed explanation-3: -With the exception of red blood cells, which contain no nucleus and no nuclear DNA, every one of these cells contains the human genome–a string of three billion A’s, C’s, G’s, and T’s. And in every one of the 100 trillion cells, the sequence of these four letters, or bases, is nearly identical.

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