Explore topic-wise MCQs in Biology Questions and Answers.

This section includes 5 Mcqs, each offering curated multiple-choice questions to sharpen your Biology Questions and Answers knowledge and support exam preparation. Choose a topic below to get started.

1.

Statement A: Response of plants to low temperature is regulated by a hypothetical hormone.

A. Statement B: Response of plants to different periods of light is also regulated by a hypothetical hormone.
B. Both the statements are true
C. Both the statements are false
D. Statement A is true but Statement B is false
E. Statement B is true but Statement A is false
Answer» B. Both the statements are true
Discussion
2.

Statement A: Vernalisation prevents precocious reproductive development.

A. Statement B: Vernalisation promotes flowering by cold treatment.
B. Both the statements are true
C. Both the statements are false
D. Statement A is true but Statement B is false
E. Statement B is true but Statement A is false
Answer» B. Both the statements are true
Discussion
3.

Statement A: Short day plants required more exposure to light than the critical duration.

A. Statement B: Long day plants required less exposure to light than the critical duration.
B. Both the statements are true
C. Both the statements are false
D. Statement A is true but Statement B is false
E. Statement B is true but Statement A is false
Answer» C. Both the statements are false
Discussion
4.

Statement A: Critical duration is different for different plants.

A. Statement B: The plants which are dependent on critical duration are called day-neutral plants.
B. Both the statements are true
C. Both the statements are false
D. Statement A is true but Statement B is false
E. Statement B is true but Statement A is false
Answer» D. Statement A is true but Statement B is false
Discussion
5.

Which of the crops doesn’t show vernalisation?

A. Wheat
B. Barley
C. Rice
D. Rye
Answer» D. Rye
Discussion