The process of transfer of pollen from anther to stigma of the same flower is: MCQ with Answer and Explanation

The process of transfer of pollen from anther to stigma of the same flower is:
A. Geitonogamy
B. Cross-pollination
C. Self-pollination
D. Xenogamy
Answer: Option C
Solution (By JKSSB Mock Tests)
Self-pollination (autogamy) occurs within the same flower. Geitonogamy is pollination between different flowers of the same plant, functionally cross-pollination. Xenogamy is between different plants. Self-pollination leads to genetic uniformity.

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Practice More Biology Questions

Question #1
Which of the following microorganisms is used in the production of curd from milk?
A. Lactobacillus
B. Streptococcus pneumoniae
C. Salmonella typhi
D. Clostridium botulinum

Correct Answer: Option A


Explanation:
Lactobacillus species convert lactose (milk sugar) into lactic acid, which lowers the pH and causes milk protein casein to coagulate, forming curd. This fermentation process also gives curd its characteristic sour taste. S. pneumoniae causes pneumonia, Salmonella typhi typhoid, Clostridium botulinum botulism. Lactobacillus is also a probiotic.

This question belongs to: Science Biology
Question #2
Assertion (A): Plants carry out photosynthesis during the day and respiration at night.
Reason (R): Photosynthesis requires light, while respiration occurs continuously.
A. Both A and R are true, and R is the correct explanation.
B. A is false, but R is true.
C. A is true, but R is false.
D. Both A and R are true, but R is not the correct explanation.

Correct Answer: Option B


Explanation:
Respiration occurs 24/7, while photosynthesis only in light. The statement implies they alternate, which is false. R is true: photosynthesis needs light, respiration is continuous. So A is false, R true.

This question belongs to: Science Biology
Question #3
The waxy substance that waterproofs the leaf surface is:
A. Lignin
B. Cellulose
C. Cutin
D. Suberin

Correct Answer: Option C


Explanation:
Cutin, along with waxes, forms the cuticle on the epidermis of leaves and stems, reducing water loss and providing protection. Lignin strengthens cell walls, cellulose is the wall polysaccharide, suberin is in cork cells and root endodermis.

This question belongs to: Science Biology