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  #2  
4th July 2018, 09:06 AM
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Re: Jamia Millia Islamia Answer Sheet

I want the sample question paper of Biology of Class XII of Jamia Millia Islamia so will you provide me?
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4th July 2018, 09:10 AM
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Join Date: Aug 2012
Re: Jamia Millia Islamia Answer Sheet

I am providing you the sample question paper of Biology of Class XII of Jamia Millia Islamia

Jamia Millia Islamia Class XII Biology question paper

Section A


1. a) sex-linked
b) Haemophilia/ Colour blindness
2. It remains active during the high temperature induced denaturation of double stranded
DNA. 1
3. Incentives given to couples with small families /media publicity posters of happy
couples with two children( slogan- Hum Do Humare Do)./ Motivate to promote smaller
families by using contraceptive methods
(Any two) ( x2)
4. Thymus provides micro-environment for the development and maturation of Tlymphocytes; its degeneration will weaken the immune system so the child will be
prone to frequent infections.
2)
5. Downs Syndrome 1
Section - B
6. Pollen has an outer layer called exine which is made of sporopollenin.
Most resistant organic material known/ withstand high temperature, strong acids and
alkali/ no enzyme that degrades sporopollenin so far known.
(Any three) (3=1)
7. Since RNA was unstable and prone to mutations, DNA evolved from RNA with
chemical modifications that make it more stable.
DNA has double stranded nature and has complementary strands. These further resist
changes by evolving a process of repair.
(1+1=2)
8. Spirulina is a source of food rich in protein, minerals, fats, carbohydrates and vitamins,
It can grow on waste water from potato processing plants, straw, molasses, animal
manure and even sewage, so it also reduces water pollution. (1+1)
OR
Pollination management, versatile use of resources, production at no cost (any two)
(1+1)
9. He can grow thousands of plants through tissue culture of meristem by micropropagation/He can remove the meristem and grow it in-vitro using tissue
culture technique./Although the plant is infected with a virus, the meristem
(apical and axillary) is free of viruses.
(1+1)
10. Besides acting as conduits of energy transfer across trophic levels, predators
play other important roles like
 They keep prey population under control
 Predators also help in maintaining species diversity in a community by reducing
the intensity of competition among competing prey species
(1+1)
Section - C
11. i) Pollen release and stigma receptivity is not synchronised
ii) Anther and stigma are placed at different position
iii) Self Incompatibility
iv) Production of unisexual flowers
(Any three)
(1+1+1)
12. After implantation interdigitation of maternal & foetal tissues results in
formation of structural and functional unit between embryo & maternal body
called placenta.
1
It facilitates supply of oxygen and nutrients to the embryo, Removal of carbon
dioxide and excretory material, Also acts as an endocrine tissue and produces
hormones like HCG, hPL, estrogen. Progesterone, relaxin
(1+1)
13. The first pyramid of biomass corresponds to a terrestrial ecosystem. Second
pyramid refers to a small standing crop of phytoplankton supporting a large
standing crop of zooplankton/aquatic ecosystem

Jamia Millia Islamia Class XII Biology question paper






Contact-

Jamia Millia Islamia
Maulana Mohammad Ali Jauhar Marg, Jamia Nagar, New Delhi, Delhi 110025
011 2698 1717

For complete question paper here is the attachment
Attached Files
File Type: pdf Jamia Millia Islamia Class XII Biology question paper.pdf (1.01 MB, 157 views)


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