Class 12 Biology

Chander

Asked: October 5, 2021In: Class 12 Biology

Mention the essential of LH surge during menstrual cycle.

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Chander

Asked: October 5, 2021In: Class 12 Biology

Reproductive health refers only to healthy reproductive functions. Comment.

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Ram Parkash

Asked: October 5, 2021In: Class 12 Biology

During reproduction, the chromosome number (2n) reduces to half (n) in the gametes and again resume the original number (2n) in the offspring, what are the processes through which these events take place?

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Nandini

Asked: October 5, 2021In: Class 12 Biology

A progeny of F1, is crossed with the homozygous recessive parent. What is this cross called? Work out how is it useful?

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Komal Solanki

Asked: October 5, 2021In: Class 12 Biology

Males in whom testes fail to descent to the scrotum are generally infertile. Why?

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Komal Solanki

Asked: October 5, 2021In: Class 12 Biology

Males in whom testes fail to descent to the scrotum are generally infertile. Why?

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Rohan Singla

Asked: October 5, 2021In: Class 12 Biology

Which are the three cells found in a pollen grain when it is shed at the three-celled stage?

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Irfaan Malik

Asked: October 5, 2021In: Class 12 Biology

Can an unfertilised, apomictic embryo sac give rise to a diploid embryo? If yes, then how?

Class 12 Science Important Syllabus Questions Answers Class XII Science Biology Extra Questions Class 12th Biology Sample paper Questions Class 12 Biology Extra Questions Answers

Irfaan Malik

Asked: October 5, 2021In: Class 12 Biology

In a case of polyembryony, if an embryo develops from the synergid and another from the nucellus which is haploid and which is diploid?

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

Rihaan

Asked: October 5, 2021In: Class 12 Biology

Name the parts of the gynoecium which develop into fruit and seeds.

Class 12 Science Biology Important Questions 12th Science Biology Extra Questions Class 12 Science Important Syllabus Questions Answers Class XII Science Biology Extra Questions

Category: Class 12 Biology

Mention the essential of LH surge during menstrual cycle.

Reproductive health refers only to healthy reproductive functions. Comment.

During reproduction, the chromosome number (2n) reduces to half (n) in the gametes and again resume the original number (2n) in the offspring, what are the processes through which these events take place?

A progeny of F1, is crossed with the homozygous recessive parent. What is this cross called? Work out how is it useful?

Males in whom testes fail to descent to the scrotum are generally infertile. Why?

Males in whom testes fail to descent to the scrotum are generally infertile. Why?

Which are the three cells found in a pollen grain when it is shed at the three-celled stage?

Can an unfertilised, apomictic embryo sac give rise to a diploid embryo? If yes, then how?

In a case of polyembryony, if an embryo develops from the synergid and another from the nucellus which is haploid and which is diploid?

Name the parts of the gynoecium which develop into fruit and seeds.

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Category: Class 12 Biology

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