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Tamil Nadu Board of Secondary EducationHSC Science Class 12

From their examination of the structure of DNA, What did Watson and Crick infer about the probable mechanism of DNA replication, coding capability, and mutation? - Zoology

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Question

From their examination of the structure of DNA, What did Watson and Crick infer about the probable mechanism of DNA replication, coding capability, and mutation?

Answer in Brief
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Solution

Inference of Watson and Crick on DNA replication:
They concluded that each of the DNA strand in a helix act as template during DNA replication leading to formation of new daughter DNA molecules, which are complementary to parental strand, (i.e., Semi-conservative method of replication).

Inference on coding capability:
During transcription, the genetic information in the DNA strand is coded to mRNA as complementary bases, (except for uracil in place of thymine in RNA).

Inference on mutation:
Any changes in the nucleotide sequence of DNA leads to corresponding alteration in aminoacid sequence of specific protein thus confirming the validity of genetic code.

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DNA Replication
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Chapter 5: Molecular Genetics - Evaluation [Page 86]

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Samacheer Kalvi Biology (Zoology) [English] Class 12 TN Board
Chapter 5 Molecular Genetics
Evaluation | Q 26. | Page 86
Samacheer Kalvi Biology (Zoology) [English] Class 12 TN Board
Chapter 5 Molecular Genetics
Evaluation | Q 26. | Page 89
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