Consider statements about plant reproduction: 1. The anther produces pollen. 2. The ovary develops into the fruit. 3. Self-pollination increases genetic diversity. Which are correct? MCQ with Answer and Explanation

Consider statements about plant reproduction: 1. The anther produces pollen. 2. The ovary develops into the fruit. 3. Self-pollination increases genetic diversity. Which are correct?
A. 2 and 3 only
B. 1, 2 and 3
C. 1 and 3 only
D. 1 and 2 only
Answer: Option D
Solution (By JKSSB Mock Tests)
The anther is the male reproductive part of the flower where microspores develop into pollen grains. After fertilization, the ovary wall matures and develops into the fruit, enclosing the seeds. Self-pollination involves the transfer of pollen to the stigma of the same flower or plant, resulting in offspring genetically identical to the parent, thus decreasing, not increasing, genetic diversity. Thus, statements 1 and 2 are correct.

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Question #1
Assertion (A): Human blood is a connective tissue. Reason (R): Blood cells are embedded in a liquid extracellular matrix called plasma.
A. Both A and R are true, and R is the correct explanation.
B. A false, R true.
C. Both A and R are true, but R is not the correct explanation.
D. A true, R false.

Correct Answer: Option A


Explanation:
Blood is classified as a specialized connective tissue because it has cells (RBCs, WBCs, platelets) suspended in a fluid matrix (plasma) and connects different body parts by transporting substances. Connective tissues have cells separated by extracellular matrix. Thus, the reason correctly justifies the assertion. Bone, cartilage, lymph are other connective tissues.

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The largest gland in the human body is:
A. Pancreas
B. Thyroid
C. Pituitary
D. Liver

Correct Answer: Option D


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The liver is the largest internal organ and gland, weighing about 1.5 kg. It performs metabolic, detoxification, and synthetic functions.

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Question #3
The disease caused by deficiency of vitamin C is:
A. Night blindness
B. Beriberi
C. Scurvy
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Correct Answer: Option C


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