Rohini devi

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Rachit

Asked: October 24, 2021In: Class 12 Biology

The theory of spontaneous generation stated that:

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Simba Thakur

Asked: October 24, 2021In: Class 12 Biology

In E.coli, the lac operon gets switched on when:

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Laksy

Asked: October 10, 2021In: Class 12 Biology

The generative cell of a 2-celled pollen divides in the pollen tube but not in a 3-celled pollen. Give reasons.

Class 12 Science Biology Important Questions 12th Science Biology Extra Questions Class 12th Science Session 2022-2023 12th Science Biology Questions Answers

Rameshvaram

Asked: October 10, 2021In: Class 12 Biology

‘Fertilisation is not an obligatory event for fruit production in certain plants’. Explain the statement.

Class 12 Science Biology Important Questions 12th Science Biology Extra Questions Class 12th Science Session 2022-2023 12th Science Biology Questions Answers

Naval Kishor

Asked: October 10, 2021In: Class 12 Biology

The number of taxa exhibiting asexual reproduction is drastically reduced in the higher plants (angiosperms) and higher animals (vertebrates) as compared with lower groups of plants and animals. Analyse the possible reasons for this situation.

Class 12 Science Biology Important Questions 12th Science Biology Extra Questions Class 12th Science Session 2022-2023 12th Science Biology Questions Answers

Rohini devi

The theory of spontaneous generation stated that:

In E.coli, the lac operon gets switched on when:

The generative cell of a 2-celled pollen divides in the pollen tube but not in a 3-celled pollen. Give reasons.

‘Fertilisation is not an obligatory event for fruit production in certain plants’. Explain the statement.

The number of taxa exhibiting asexual reproduction is drastically reduced in the higher plants (angiosperms) and higher animals (vertebrates) as compared with lower groups of plants and animals. Analyse the possible reasons for this situation.

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