The property of a plant cell that allows it to generate a whole new plant from a single cell or tissue is called: MCQ with Answer and Explanation

The property of a plant cell that allows it to generate a whole new plant from a single cell or tissue is called:
A. Micropropagation
B. Protoplast fusion
C. Somatic hybridization
D. Totipotency
Answer: Option D
Solution (By JKExamLibrary)
Totipotency is the genetic ability of a single plant cell to divide and differentiate into all the cell types of the plant, ultimately generating an entire new plant. This property is the fundamental basis of plant tissue culture. Micropropagation is the technique used to rapidly multiply plants using this totipotency, often through the formation of callus and somatic embryos.

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Question #1
Which of the following is an example of a coenzyme?
A. Collagen
B. Pepsin
C. Hemoglobin
D. NAD⁺

Correct Answer: Option D


Explanation:
NAD⁺ (nicotinamide adenine dinucleotide) is a coenzyme derived from vitamin B₃, serving as an electron carrier in redox reactions. Pepsin is an enzyme, collagen a structural protein, hemoglobin a transport protein. Coenzymes are organic non-protein molecules that assist enzymes.

This question belongs to: Science Biology
Question #2
Consider the following statements about antibodies:
1. They are produced by T-lymphocytes.
2. They are also called immunoglobulins.
3. They specifically bind to antigens.
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A. 1, 2, and 3
B. 1 and 2 only
C. 1 and 3 only
D. 2 and 3 only

Correct Answer: Option D


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Antibodies are produced by B-lymphocytes (plasma cells), not T-cells. They are immunoglobulins that bind specific antigens. Thus, 2 and 3 are correct.

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The scientist who proposed the theory of evolution by natural selection is:
A. Gregor Mendel
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Correct Answer: Option D


Explanation:
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