Polytene chromosomes were first observed by___________________?

Related Mcqs:

1. If the haploid number of chromosomes in a plant is 12, then the number of chromosomes in monosmic is_________________?

   A. 12 B. 24 C. 22 D. 23...

2. When a cell with 40 chromosomes undergoes meiosis each of the four resulting cells has_____________________?

   A. 10 chromosomes B. 20 chromosomes C. 40 chromosomes...

3. If diploid chromo me number in flowering plant is 8 then 4 chromosomes will be present in_________________?

   A. Endosperm cell B. Leaf cells C. Cotyledonary cell D. Synergids...

4. Duplication of chromosomes occurs during_________________?

   A. Mitosis only B. Meiosis C. Mitosis and meiosis D. None of the above...

5. If the leaf cells have eight chromosomes it is mostly likely that__________________?

   A. Gametes will have 8 chromosomes B. Gametes will have 4 chromosomes C. Zygote will have 4 chromosomes D. Zygote will have 16 chromosomes...

6. In meiosis homologous chromosomes separate from each other in ______________________?

   A. metaphase I B. Auaphase I C. Metaphase II D. Anaphase II...

7. Diagrammatic representation of the chromosomes of an organism arranged according to their size is called_____________________?

   A. Ideogram B. Gene map C. Karyotype D. Phenotype...

8. A normal plant suddenly started reproducing parthengentically. the number of chromosomes of the second generation compared to the parent plant will be____________________?

   A. Double B. One half C. One fourth D. Same...

9. A rearrangement of a group of genes in a chromosome in such a way that their order in the chromosomes is reversed is known as _____________________?

   A. Inversion B. Conversion C. Recessive gene D. Realignment...

10. The giant chromosomes of Drosophila are found in_____________________?

    A. Testes B. Salivary glands C. Ovaries D. Muscles...