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BOTANY

Latest questions in this category.

45 questions

Which of the following statements about independent assortment is incorrect?

Linked genes do not follow the Law of Independent Assortment because they are inherited together unless crossing over occurs. This follows from NCERT principle where relation explains outcome clearly for students.

Ref: NCERT Biology Textbook for Class XI and XII (Botany section), Chapter: Biology - Botany portion covering relevant concept, Topic: Plant structure, physiology and applications.

Which of the following correctly describes multiple allelism?

In multiple allelism, a gene has more than two possible alleles in a population, but each individual inherits only two. This follows from NCERT principle where relation explains outcome clearly for students.

Ref: NCERT Biology Textbook for Class XI and XII (Botany section), Chapter: Biology - Botany portion covering relevant concept, Topic: Plant structure, physiology and applications.

For wind-pollinated flowers, which environmental factor is most critical for effective pollen dispersal?

Wind speed is crucial in wind-pollinated (anemophilous) plants to carry pollen grains over distances for successful pollination. This follows from NCERT principle where relation explains outcome clearly for students.

Ref: NCERT Biology Textbook for Class XI and XII (Botany section), Chapter: Biology - Botany portion covering relevant concept, Topic: Plant structure, physiology and applications.

Which type of reproduction is observed in yeast?

Yeast reproduces asexually by budding, where a new ll forms as an outgrowth of the parent ll. This follows from NCERT principle where relation explains outcome clearly for students.

Ref: NCERT Biology Textbook for Class XI and XII (Botany section), Chapter: Biology - Botany portion covering relevant concept, Topic: Plant structure, physiology and applications.

What would happen if the root cap of a growing root is removed?

The root cap protects the delicate meristematic region of the root from mechanical damage as it pushes through the soil. This follows from NCERT principle where relation explains outcome clearly for students.

Ref: NCERT Biology Textbook for Class XI and XII (Botany section), Chapter: Biology - Botany portion covering relevant concept, Topic: Plant structure, physiology and applications.

What is the primary role of cyclic photophosphorylation?

Cyclic photophosphorylation produces ATP but does not generate NADPH or oxygen. This follows from NCERT principle where relation explains outcome clearly for students.

Ref: NCERT Biology Textbook for Class XI and XII (Botany section), Chapter: Biology - Botany portion covering relevant concept, Topic: Plant structure, physiology and applications.

Which of the following statements about Phaeophyceae is correct?

Kelps, which are brown algae (Phaeophyceae), can grow massively, reaching up to 100 meters. This follows from NCERT principle where relation explains outcome clearly for students.

Ref: NCERT Biology Textbook for Class XI and XII (Botany section), Chapter: Biology - Botany portion covering relevant concept, Topic: Plant structure, physiology and applications.

Which of the following statements about antibiotics is incorrect?

Erythromycin is produced by the bacterium *Saccharopolyspora erythraea*, not fungi. This follows from NCERT principle where relation explains outcome clearly for students.

Ref: NCERT Biology Textbook for Class XI and XII (Botany section), Chapter: Biology - Botany portion covering relevant concept, Topic: Plant structure, physiology and applications.

Which of the following statements about pith in monocot roots is correct?

Monocot roots have a well-developed pith, whereas in dicot roots, the pith is either small or absent. This follows from NCERT principle where relation explains outcome clearly for students.

Ref: NCERT Biology Textbook for Class XI and XII (Botany section), Chapter: Biology - Botany portion covering relevant concept, Topic: Plant structure, physiology and applications.