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BOTANY

This Botany category covers the plant side of biology, including cell structure, plant anatomy and morphology, physiology, reproduction, genetics and ecology. Questions range from recall of terms and classifications to applied reasoning about plant processes. It works well for steady topic revision or a quick check of how much you remember before a test.

45 questions

Which of the following is an example of incomplete dominance?

Incomplete dominance occurs when heterozygous offspring exhibit an intermediate phenotype, as seen in pink flowers from red and white parents. This follows from NCERT principle where the relation explains the outcome clearly for students in simple steps.

Ref: NCERT Biology Textbook for Class XI and XII (Botany section), Chapter: Morphology and Anatomy of Flowering Plants, Topic: Plant structure and tissue systems.

Which of the following is NOT a product of the Krebs cycle?

The Krebs cycle produces ATP, NADH, and FADHâ‚‚, but glucose is not a product of the cycle. This follows from NCERT principle where the relation explains the outcome clearly for students in simple steps.

Ref: NCERT Biology Textbook for Class XI and XII (Botany section), Chapter: Morphology and Anatomy of Flowering Plants, Topic: Plant structure and tissue systems.

Which of the following is a stop codon?

UAA is a stop codon that signals the termination of translation. This follows from NCERT principle where the relation explains the outcome clearly for students in simple steps.

Ref: NCERT Biology Textbook for Class XI and XII (Botany section), Chapter: Morphology and Anatomy of Flowering Plants, Topic: Plant structure and tissue systems.

Which of the following is an incorrect statement regarding co-dominance?

In co-dominance, both alleles are equally expressed rather than one masking the other. This follows from NCERT principle where the relation explains the outcome clearly for students in simple steps.

Ref: NCERT Biology Textbook for Class XI and XII (Botany section), Chapter: Morphology and Anatomy of Flowering Plants, Topic: Plant structure and tissue systems.

Which of the following correctly describes commensalism?

In commensalism, one species benefits while the other is neither helped nor harmed. This follows from NCERT principle where the relation explains the outcome clearly for students in simple steps.

Ref: NCERT Biology Textbook for Class XI and XII (Botany section), Chapter: Morphology and Anatomy of Flowering Plants, Topic: Plant structure and tissue systems.

Which external factor is rarely a limiting factor for photosynthesis under natural conditions?

Light is rarely a limiting factor in nature because plants require only about 10% of full sunlight for photosynthesis. This follows from NCERT principle where the relation explains the outcome clearly for students in simple steps.

Ref: NCERT Biology Textbook for Class XI and XII (Botany section), Chapter: Morphology and Anatomy of Flowering Plants, Topic: Plant structure and tissue systems.

Which of the following structures disappears during prophase of mitosis?

During prophase, the nuclear envelope breaks down, allowing chromosomes to move freely within the ll. This follows from NCERT principle where the relation explains the outcome clearly for students in simple steps.

Ref: NCERT Biology Textbook for Class XI and XII (Botany section), Chapter: Morphology and Anatomy of Flowering Plants, Topic: Plant structure and tissue systems.

Which part of a monocot seed protects the plumule?

The coleoptile is a protective sheath covering the plumule in monocot seeds. This follows from NCERT principle where the relation explains the outcome clearly for students in simple steps.

Ref: NCERT Biology Textbook for Class XI and XII (Botany section), Chapter: Morphology and Anatomy of Flowering Plants, Topic: Plant structure and tissue systems.