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[A]: Lampbrush chromosomes arf3 found in...

[A]: Lampbrush chromosomes arf3 found in the oocytes of certain animals during the prophase of meiosis. Such chromosomes consist of two central strands along which fine loops extend laterally.
[R]: The loops are thought to be active re- gions of RNA synthesis

A

If both A and R are true and R is the correct explanation of A

B

If both A and R are true but R is not the correct explanation of A

C

If A is true and R is false

D

If both A and R are false

Text Solution

Verified by Experts

The correct Answer is:
B
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  2. [A]: For a recipient to receive blood from a donor, the recipient's pl...

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  3. [A]: Lampbrush chromosomes arf3 found in the oocytes of certain animal...

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  4. Assertion (a) : Superumerary chromosomes do not usually have anay eff...

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  5. [A]: The chromosomes of plants are larger than animals. [R]: The ch...

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  6. [A]: Metacentric chromosomes are V- shaped. [R]: In these chromosom...

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  7. [A]: Chromosomes are divided into hetero- chromatin and euchromatin pa...

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  8. [A]: Triplet code is a degenerate one. [R]: Explanation for degener...

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  9. Assertion : Identical twins are produced during two births , resulti...

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  10. [A]: Genetic engineering is the use of tech- nology to alter the genom...

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  11. [A]: Polymerase chain reaction (PCR) fol- lowed by DNA probe is used d...

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  12. [A]: The preparation of recombinant DNA re- quires restriction enzymes...

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  13. [A]: Plasmids are small accessory rings of DNA found in some bacteria ...

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  14. [A]: Proteins are polymers of amino acids. [R]: Nucleic acids are p...

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  15. [A): Prokaryotic cells do not contain repres- sor protein [R]: The...

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  16. [A]: If a population is of dominant genotype AA, then the frequency of...

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  17. [A]: In paracentric inversions the centromere is outside the inverted ...

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  18. [A]: Polyploidy increases the tolerance of plants towards extreme clim...

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  19. [A]: Haemophillia is a genetically linked dis- ease. [R]: The carri...

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  20. [A]: Cytoplasmic male sterility is observed in maize. [R]: The cyto...

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