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?

Describe the structure of DNA as proposed by Watson and Crick.

Which property of DNA double helix led Watson and Crick to hypothesise semi-conservative mode of DNA replication? Explain.

Note the relationship between the first two words and suggest a suitable word for the 4th place. a. Purines - Adenine and guanine :: Pyrimidines - b. AUG - Methionine :: AUC - c. Operon concept - Jacob and Monod :: One gene one enzyme theory - d. DNA - Thymine and cytosine :: RNA - e. AUG - initiation codon :: UAA - f. Xeroderma pigmentosum - Skin cancer :: Retinoblastoma - g. Semiconservative method of DNA replication - Watson and Crick :: Transformation experiment -

Viral DNA after being converted from viral RNA by X, incorporates into host genome to undergo replication. What is 'X'?

From what you have learnt, can you tell whether enzymes are bigger or DNA is bigger in molecular size ? How did you know ?

{:(1.,"Waldeyar",-,(a),"Role of chromosome in heredity"),(2.,"James Watson and Crick",-,(b),"Father of genetics"),(3.,"Hugo de vries",-,(c),"Down's syndrome"),(4.,"Langdon Down",-,(d),"Chromosomes"),(5.,"T.H Morgan",-,(e),"Mutation"),(6.,"Gregor Johan Mendel",-,(f),"Model of DNA"):}

Match the column I with column II and select the correct option from the given codes. {:("Column I","Column II"),("Disintegration of nuclear membrane",(i)"Anaphase"),("Appearance of nucleoulus",(ii)"Prophase"),("Division of centromere",(iii)"Telophase"),("Replication of DNA",(iv)"S-phase"):}