Class 12 Biology

Poll

Purnima jha

Asked: October 19, 2021In: Class 12 Biology

A multicellular, filamentous alga exhibits a type of sexual life cycle in which the meiotic division occurs after the formation of zygote. The adult filament of this alga has

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Poll

Purnima jha

Asked: October 18, 2021In: Class 12 Biology

A few statements with regard to sexual reproduction are given below:

i. Sexual reproduction does not always require two individuals ii. Sexual reproduction generally involves gametic fusion iii. Meiosis never occurs during sexual reproduction iv. External fertilisation is a rule during sexual reproduction

Poll

Ayesha

Asked: October 18, 2021In: Class 12 Biology

Amoeba and Yeast reproduce asexually by fission and budding respectively, because they are:

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Poll

Ayesha

Asked: October 18, 2021In: Class 12 Biology

The term ‘clone’ cannot be applied to offspring formed by sexual reproduction because

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Ratan Rai

Asked: October 18, 2021In: Class 12 Biology

What are the basic characteristics of a modern land fill sites. List any three and mention the reasons for their use.

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Haldi Ram

Asked: October 18, 2021In: Class 12 Biology

Define transgenic animals. Explain in detail any four areas where they can be utilised.

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Poll

Charlie

Asked: October 18, 2021In: Class 12 Biology

Select the options that are true for both asexual and sexual reproduction from the options given below:

A few statements describing certain features of reproduction are given below: i. Gametic fusion takes place ii. Transfer of genetic material takes place iii. Reduction division takes place iv. Progeny have some resemblance with parents

Ratan Rai

Asked: October 18, 2021In: Class 12 Biology

Write a short note on electronic waste. List the various sources of e- wastes and the problems associated with the disposal of e-waste.

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Naaved

Asked: October 18, 2021In: Class 12 Biology

List the disadvantages of insulin obtained from the pancreas of slaughtered cows and pigs:

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Haldi Ram

Asked: October 18, 2021In: Class 12 Biology

You have studied the story of pepper moths in England. Had the industries been removed, what impact could it have had on the moth population? Discuss.

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Category: Class 12 Biology

A multicellular, filamentous alga exhibits a type of sexual life cycle in which the meiotic division occurs after the formation of zygote. The adult filament of this alga has

A few statements with regard to sexual reproduction are given below:

Amoeba and Yeast reproduce asexually by fission and budding respectively, because they are:

The term ‘clone’ cannot be applied to offspring formed by sexual reproduction because

What are the basic characteristics of a modern land fill sites. List any three and mention the reasons for their use.

Define transgenic animals. Explain in detail any four areas where they can be utilised.

Select the options that are true for both asexual and sexual reproduction from the options given below:

Write a short note on electronic waste. List the various sources of e- wastes and the problems associated with the disposal of e-waste.

List the disadvantages of insulin obtained from the pancreas of slaughtered cows and pigs:

You have studied the story of pepper moths in England. Had the industries been removed, what impact could it have had on the moth population? Discuss.

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