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Online Short Questions For Chapter 4 "12th Class Biology Chapter 18 Short Questions Preparation "
Try The Short Questions For 12th Class Biology Chapter 18 Short Questions Preparation
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Total Questions10
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Available Sets6
Biology - 12th Class Biology Chapter 18 Short Questions Preparation
Question # 1
Name two sexually transmitted disease and their control.
- Ans 1: Genital herpes and AIDS. These sexually transmitted diseases can be controlled by avoiding sexual contact with affected person and adopting the hygienic conditions and also by taking medical treatment.
12th Class Biology Chapter 18 Short Questions Preparation - Set 1
Question # 1
Name two sexually transmitted disease and their control.
- Ans 1: Genital herpes and AIDS. These sexually transmitted diseases can be controlled by avoiding sexual contact with affected person and adopting the hygienic conditions and also by taking medical treatment.
12th Class Biology Chapter 18 Short Questions Preparation - Set 2
Question # 1
What is diplohaplontic life cycle? Give its types.
- Ans 1: In sexual reproduction,plants have diplohaplontic life cycle with alternating diploid sporophyte and haploid gametophyte generations. its type are isomorphic generations and heteromorphic generations.
12th Class Biology Chapter 18 Short Questions Preparation - Set 3
Question # 1
What is corpus luteum? Give its function.
- Ans 1: The follicle cells after release of the egg are modified to from a special structure called corpus leuteum. It produces progesterone.
12th Class Biology Chapter 18 Short Questions Preparation - Set 4
Question # 1
Give two disadvantages of cloning.
- Ans 1: The entire organism produced by cloning are identical to each other and no genetic variability is produced.
- Ans 2: All the organism will not show any resistant to disease if it outbreaks and all the generation will be died.
12th Class Biology Chapter 18 Short Questions Preparation - Set 5
Question # 1
What is difference between oogenesis and spermetogensis in humans?
- Ans 1: Oogenesis: In oogenesis, primary oocytes divide meiotically in to secondary oocytes and first polar body. Second meiotic division in the oocytes proceeds as far as metaphase but is not complete until the oocyte is fertilized by the sperm.
- Ans 2: Spermatogenesis: during spermatogenesis primary spermatocytes under go meiotic division to form four secondary spermatocytes and spermatids which then differentiated into four mature sperms.
12th Class Biology Chapter 18 Short Questions Preparation - Set 6
Question # 1
Define vernalization.
- Ans 1: Chilling treatment give to the plant seeds before sowing is called vernalization.
12th Class Biology Chapter 18 Short Questions
Here you can prepare 12th Class Biology Chapter 18 (Reproduction). Click the button for 100% free full practice.
