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प्रश्न
How are alleles of particular gene differ from each other? Explain its significance.
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उत्तर
Alleles of a particular gene differ from each other on the basis of certain changes (i.e., mutations) in the genetic material (segment of DNA or RNA). Different alleles of a gene increases the variability or variation among the organisms.
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संबंधित प्रश्न
Assertion (A): Gamma rays are generally used to induce mutation in wheat varieties.
Reason (R): Because they carry lower energy to non-ionize electrons from atom
Albinism is known to be due to an autosomal recessive mutation. The first child of a couple with normal skin pigmentation was an albino. What is the probability that their second child will also be an albino?
Rate of mutation is affected by ______.
A strong mutagen is:
Mutations result in
How does a mutagen induce mutation? Explain with example.
Match list I with list II
| List I | List II | ||
| A. | A pair of chromosomes extra with diploid | i) | monosomy |
| B. | One chromosome extra to the diploid | ii) | tetrasomy |
| C. | One chromosome was lost from diploid | iii) | trisomy |
| D. | Two individual chromosomes lose from diploid | iv) | double monosomy |
Match list I with list II.
| List I | List II | ||
| A. | A pair of chromosomes extra with diploid | i) | monosomy |
| B. | One chromosome extra to the diploid | ii) | tetrasomy |
| C. | One chromosome loses from diploid | iii) | trisomy |
| D. | Two individual chromosomes lose from diploid | iv) | double monosomy |
Match list I with list II
| List I | List II |
| A. A pair of chromosomes extra with diploid | (i) monosomy |
| B. One chromosome extra to the diploid | (ii) tetrasomy |
| C. One chromosome loses from diploid | (iii) trisomy |
| D. Two individual chromosomes lose from diploid | (iv) double monosomy |
Who proposed the Mutation Theory of Evolution and in which year?
Which type of mutation involves the substitution of a single base pair?
What mechanism causes a frameshift mutation?
Which of the following is caused by intrinsic replication errors and tautomeric shifts?
What is the primary mechanism by which UV radiation causes mutations?
Which physical mutagen works through ionizing radiation to break DNA strands?
Which chemical mutagen is a base analogue that replaces thymine?
Which type of chemical mutagen causes frameshift mutations?
How does DDT resistance in mosquitoes exemplify the evolutionary importance of mutations?
