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Question
Explain any three molecular (genetic) evidences in favour of organic evolution.
Solution
(i) All organisms have cellular structure and DNA is the genetic material, indicating their common ancesting except RNA virus.
(ii) Genetic information flow from DNA to RNA to protein, a phenomenon called Central Dogma.
(iii) Mutations are the source of new variations and fountain head of evolution.
(iv) Genetic information is stored in the DNA in the form of sequence of nucleotides. Genetic code is a triplet code. It is same from bacteria to humans (any three points).
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RELATED QUESTIONS
If you are asked to select a group of two vegetables, out of the following, having homologous structures which one would you select?
(a) Carrot and radish
(b) Potato and sweet potato
(c) Potato and tomato
(d) Lady finger and potato
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Find odd one out:
Find the odd one out:
Write avian characters of Archaeopteryx.
