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Write an account on tissue culture and cloning in plants.

asked Sep 12, 2017 in Biology by sonia (36.5k points)

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In the longitudinal section of kidney, why is the outer region darker than the inner region?

asked Sep 4, 2017 in Biology by shamroz (41.5k points)

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Describe the Watson-Crick model of DNA.

asked Sep 12, 2017 in Biology by shamroz (41.5k points)

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What do you meant by STDs?

asked Sep 12, 2017 in Biology by shamroz (41.5k points)

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What is the dominance relationship between blood group alleles I A and I B?

asked Sep 13, 2017 in Biology by shamroz (41.5k points)

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What is diamorphine?

asked Sep 14, 2017 in Biology by sonia (36.5k points)

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What do you mean by greenhouse effect?

asked Sep 13, 2017 in Biology by shamroz (41.5k points)

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Explain ecological pyramids.What do you mean by the pyramids of number and biomass.

asked Sep 13, 2017 in Biology by shamroz (41.5k points)

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Describe the Watson-Crick model of DNA.

asked Sep 13, 2017 in Biology by sonia (36.5k points)

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Who discovered the first antibiotic?

asked Sep 14, 2017 in Biology by shamroz (41.5k points)

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What are the main sources of variations?

asked Sep 13, 2017 in Biology by shamroz (41.5k points)

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What do you mean by dominant and recessive alleles?

asked Sep 13, 2017 in Biology by sonia (36.5k points)

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Define biomass.

asked Sep 13, 2017 in Biology by shamroz (41.5k points)

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Write a note on male and female reproductive system in rabbit.

asked Sep 6, 2017 in Biology by shamroz (41.5k points)

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Why Mendel selected pea plant as his experimental tool?

asked Sep 13, 2017 in Biology by sonia (36.5k points)

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Who is Gregor Mendel? Why, he is famous for?

asked Sep 13, 2017 in Biology by sonia (36.5k points)

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Write a detailed account on sexual reproduction in flowering plants.

asked Sep 12, 2017 in Biology by shamroz (41.5k points)

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What is Punnett square?

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What are the principal types of reproduction?

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Write a note on competition.

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