Class 12th Biology 2018 Set1 Delhi Board Paper Solution
Question 12
List any two applications of DNA fingerprinting technique.
Answer
(a) Identify criminals, if their DNA from blood, hair follide,skin,bone,saliva,sperm etc. is available in forensic labs
(a) Determine paternity
Popular Questions of Class 12th biology
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(a) Adaptations of desert plants and animals
(b) Adaptations of plants to water scarcity
(c) Behavioural adaptations in animals
(d) Importance of light to plants
(e) Effect of temperature or water scarcity and the adaptations of animals. - Q:- With a neat diagram explain the 7-celled, 8-nucleate nature of the female gametophyte.
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(a) Abortions could happen spontaneously too. (True/False)
(b) Infertility is defined as the inability to produce a viable offspring and is always due to abnormalities/defects in the female partner. (True/False)
(c) Complete lactation could help as a natural method of contraception. (True/False)
(d) Creating awareness about sex related aspects is an effective method to improve reproductive health of the people. (True/False) - Q:- Name the primary and secondary lymphoid organs.
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(a) Promoter
(b) tRNA
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(a) Ovary _______________
(b) Anther _______________
(c) Egg _________________
(d) Pollen__________________
(e) Male gamete _______________
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(a) Amoebiasis
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(c) Ascariasis
(d) Pneumonia - Q:- Can we call human evolution as adaptive radiation?
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(a) Innate and acquired immunity
(b) Active and passive immunity