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Assertion : Identical twins are produc...

Assertion : Identical twins are produced during two births , resulting from the division of a single fertilized egg .
Reaosn : They are of the different sex and otherwise genetically identical.

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

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The correct Answer is:
D
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  8. [A]: Proteins are polymers of amino acids. [R]: Nucleic acids are p...

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

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

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

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

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

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  15. Assertion: DNA synthesis occurs in G(1) and G(2) periods of cell cycle...

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  17. [A]: The deleted region of long arm of chro- mosome 7 contains the ela...

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  18. [A]: Centromere is the primary constriction on the metaphase chromosom...

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