Advertisements
Advertisements
प्रश्न
Explain any three molecular (genetic) evidences in favour of organic evolution.
उत्तर
(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).
APPEARS IN
संबंधित प्रश्न
“Two areas of study namely 'evolution' and 'classification' are interlinked'. Justify this statement.
Find out from newspapers and popular science articles any new fossil discoveries or controversies about evolution.
Attempt giving a clear definition of the term species.
Which evidence of evolution is shown in the given picture? Explain the importance of this evidence.
Select the correct statement.
Select the CORRECT set of homologous organs.
What were the characteristics of life forms that had been fossilised?
How do we compute the age of a rock?
Write a note on the significance of Palaeontology.
Give examples of homologous organs and analogous organs in plants.