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A single base mutation in a gene may not...

A single base mutation in a gene may not 'always' result in loss or gain of function. Do you think the statement is correct? Defend your answer.

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The statement is correct. Because of degeneracy of codons, mutations at third base of codon, usually does not result into any change in phenotype.
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OSWAAL PUBLICATION-MOLECULAR BASIS OF INHERITANCE -TOPIC-2: Short Answer Type Question- I
  1. Define transcription and translation.

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  2. Differentiate between sense and antisense strands of DNA.

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  3. A single base mutation in a gene may not 'always' result in loss or ga...

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  4. A low level of expression of lac operon occurs at all the time. Can yo...

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  5. What are the functions of (i) methylated guanasine cap, (ii) poly-A"ta...

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  6. Comment on the utility of variability in number of tandem repeats duri...

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  7. Give an account of mRNA.

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  8. Differentiate between Exons and Introns.

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  9. How is a polypeptide chain synthesis terminated during protein synthes...

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  10. What are structural genes? Name the three structural genes present in ...

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  11. What do you understand by UTR ? Mention its role in translation.

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  12. Enumerate the goals of human genome project.

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  13. Three codons on mRNA are not recognized by transfer RNA. What are they...

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  14. Why is it essential that tRNA binds to both an amino acid and an mRNA ...

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  15. What will these DNA codons be translated into TAC, AAA, ATC? (b) Wh...

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  16. Two petitioner fathers filed case against a lady claiming to be the fa...

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  17. Draw the structure of the initiator tRNA adaptor molecule.

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  18. Why is tRNA called an adaptor molecule?

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  19. One of the codons on mRNA is AUG. Draw the structure of tRNA adaptor m...

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  20. Explain the dual function of AUG codon. Give the sequence of bases it ...

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