Q481
Open questionCrown-gall tumours of sunflower are caused by
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Biology GK · all questionsGentics and Evoloution
Gentics and Evoloution
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Q482
Open questionOparin and Haldane's theory is also called
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Q483
Open question'Linkage' was discovered by
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Q484
Open questionA chromosome break occurs, and is followed by duplication of the chromosome during
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Q485
Open questionJumping genes/transposons/movable genetic elements discovered by Barbara McClintock in
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Q486
Open questionMatch List-I with List-II and select the correct answer:
| List-I | List-II |
| a. Cross between F1 and recessive parent | 1. Monohybrid cross |
| b. Cross between F1 and either parents | 2. Dihybrid cross |
| c. Two traits consider | 3. Back cross |
| d. Only one trait consider | 4. Test cross |
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Q487
Open questionConsider the following statements regarding the historical aspects of DNA and choose the correct answer:
1. Meischer isolated nucleic acids, which he called nuclein
2. Altmann used the term nucleic acid to replace nuclein
3. Fischer identified pyrimidines and purines
4. Griffiths discovered bacterial transformation by DNA
1. Meischer isolated nucleic acids, which he called nuclein
2. Altmann used the term nucleic acid to replace nuclein
3. Fischer identified pyrimidines and purines
4. Griffiths discovered bacterial transformation by DNA
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Q488
Open questionGenes are made up of
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Q489
Open questionIn paracentric inversions
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Q490
Open questionThe important postulates in the theory of special creation include:
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Q491
Open questionSelect the wrong pair.
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Q492
Open questionAssertion (A) In human beings, the female play a major role in determining the sex of the offspring.
Reason (R) Women have two X-chromosomes.
Reason (R) Women have two X-chromosomes.
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Q493
Open questionIn the context of organic evolution, the loss of limbs in snakes is explained by the phenomenon of
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Q494
Open questionThe minimal oxygen partial pressure above which oxidative metabolism can take place in aerobic organisms is called
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Q495
Open questionAccording to Lillie, where twins of opposite sex are born;
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Q496
Open questionThe widely accepted model of protocell was provided by Fox by
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Q497
Open questionThe DNA binding proteins bind preferentially to single strands of DNA and
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Q498
Open questionThe benefits of genetic engineering include
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Q499
Open questionHereditary characteristics are passed on from parent to the offspring chiefly through
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Q500
Open questionGene for colour blindness is located on
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