Please select a subject first
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Which one of the following is not a nitrogen-fixing organism?
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Name the cell which is responsible for nitrogen fixation in cyanobacteria.
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Match the pairs:
| Column A | Column B | ||
| (i) | Compost making biofertilizer |
(a) | Azotobacter |
| (ii) | N2 fixing biofertilizer | (b) | Mycorrhiza |
| (iii) | Fungal biofertilizer | (c) | Agrobacterium |
| (iv) | Phosphate solubilizing biofertilizer |
(d) | Actinobocteria |
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What is nitrification?
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Name any two nitrifying bacteria in soil.
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Aspergillus niger is used to manufacture
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Match the following:
| Column A | Column B (Organisms) | ||
| (1) | Symbiotic nitrogen fixation | (a) | Nitrobacter |
| (2) | Denitrification | (b) | Cyanobacteria |
| (3) | Free living nitrogen fixers | (c) | Rhizobium |
| (4) | Nitrification | (d) | Paracoccus |
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Name the microorganisms involved in the production of Roquefort cheese, Camembert cheese and Swiss cheese.
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Write a note on 'Widow's peak?
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Name the type of T-lymphocyte which secretes perforins.
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What is dark reaction in photosynthesis?
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Which of the following are 'scavenger cells'?
(a) Lymphocytes
(b) Erythrocytes
(c) Basophils
(d) Macrophages
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Describe agranulocytes with the help of diagrams.
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What are X-linked genes?
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Very Short Answer Question.
What are holandric traits?
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Short Answer Question.
Observe the given pedigree chart and answer the following question.
Identify whether the trait is sex-linked or autosomal.
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Short Answer Question.
Observe the given pedigree chart and answer the following question.
Give an example of a trait in human beings which shows such a pattern of inheritance.
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Long answer type question.
In the answer for inheritance of X-linked genes, Madhav had shown carrier male. His answer was marked incorrect. Madhav was wondering why his marks were cut. Explain the reason.
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Long answer type question.
Explain cris-cross inheritance with suitable example.
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