Which of the following is the most suitable medium for the culture of Drosophila melanogaster?
1. | Cow dung | 2. | Moist bread |
3. | Agar agar | 4. | Ripe Banana |
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Given below are different levels of organization of genetic material. Arrange them in the correct descending order of their size:
1. | Genome, chromosome, gene, nucleotide |
2. | Gene, chromosome, nucleotide, genome |
3. | Chromosome, gene, genome, nucleotide |
4. | Chromosome, genome, nucleotide, gene |
Drosophila melanogaster is a model organism for the study of genetics. The advantages of this organism include all the following except:
1. | A long life cycle |
2. | A large number of progeny produced by a single mating |
3. | Clear differentiation between sexes |
4. | Hereditary variation is easily seen with low-power microscopes |
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