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Identify the A, B, C, and D in the given table
| Interaction | Effects on species X | Effects on species Y |
| Mutualism | A | (+) |
| B | (+) | (-) |
| Competition | (-) | C |
| D | (-) | 0 |
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Column I represent the size of the soil particles and Column II represents the type of soil components. Which of the following is the correct match for the Column I and Column IL
| Column - I | Column - II | ||
| I) | 0.2 to 2.00 mm | i) | Slit soil |
| II) | Less than 0.002 mm | ii) | Clayey soil |
| III) | 0.002 to 0.02 mm | iii) | Sandy soil |
| IV) | 0.002 to 0.2 mm | iv) | Loamy soil |
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What is the soil profile? Explain the characters of different soil horizons.
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Explain afforestation with case studies.
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Which one of the following pairs of codons are correctly matched with their function or the signal for the particular amino acid?
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How sex is determined in monoecious plants. write their genes involved in it.
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Restriction enzymes are
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Consider the following statements:
- Recombinant DNA technology is popularly known as genetic engineering is a stream of biotechnology which deals with the manipulation of genetic materials by man invitro
- pBR322 is the first artificial cloning vector developed in 1977 by Boliver and Rodriguez from E.coli plasmid
- Restriction enzymes belong to a class
of enzymes called nucleases. Choose the correct option regarding the above statements
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Which one of the following palindromic base sequences in DNA can be easily cut at about the middle by some particular restriction enzymes?
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What are the enzymes you can use to cut the terminal end and internal phospho di ester bond of nucleotide sequence?
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Name the chemicals used in gene transfer.
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What is a restriction enzyme? Mention their type with a role in Biotechnology.
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How will you identify a vectors?
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Match column I (crop) with column II (Corresponding disease-resistant variety) and select the correct option from the given codes.
| Column I | Column II | ||
| I) | Cowpea | i) | Himgiri |
| II) | Wheat | ii) | Pusa Komal |
| III) | Chilli | iii) | Pusa Sadabahar |
| IV) | Brassica | iv) | Pusa Swarnim |
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Match List I with List II
| List I | List II | ||
| Biofertilizer | Organisms | ||
| i) | Free-living N2 | a) | Aspergillus |
| ii) | Symbiotic N2 | b) | Amanita |
| iii) | P Solubilizing | c) | Anabaena azollae |
| iv) | P Mobilizing | d) | Azotobactor |
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How are microbial innoculants used to increase soil fertility?
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An eminent Indian embryologist is
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The scar left by funiculus in the seed is
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Ruminate endosperm is found in
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Coelorhiza is found in
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