Match the names of the scientists listed in Column-I with their respective discoveries in Column-II.

$\begin{matrix} C o l u m n - I & C o l u m n - I I p . W a t s o n a n d C r i c k & i . C o n f i r m e d t h a t D N A i s t h e t r a n s f o r m i n g p r i n c i p l e q . A v e r y, M a c L e o d a n d M c C a r t y & i i . D N A d o u b l e h e l i c a l m o d e l r . H e r s h e y a n d C h a s e & i i i . F i r s t i d e n t i f i e d D N A a s t h e t r a n s f o r m i n g p r i n c i p l e s . G r i f f i t h & i v . E x i s t e n c e o f a^{'} t r a n s f o r m i n g p r i n c i p l e^{'} \end{matrix}$

p - ii, q - iii, r - i, s - iv

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p - iii, q - i, r - iv, s - ii

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p - ii, q - iv, r - i, s - iii

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p - iv, q - i, r - ii, s - iii

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Solution

The correct option is A
p - ii, q - iii, r - i, s - iv

Watson and Crick are known for the double helical model of DNA that they constructed. Griffith’s transformation experiments revealed that a “transforming principle” from heat-killed S strain of pneumococcal bacteria could transform the R strain into the live S strain. Avery, MacLeod and McCarty figured out that DNA is the “transforming principle”. Hershey and Chase, through a cleverly developed experiment, re-confirmed that DNA, and not protein, is the genetic material in most organisms.

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Match the names of the scientists listed in Column-I with their respective discoveries in Column-II.

$\begin{matrix} C o l u m n - I & C o l u m n - I I p . W a t s o n a n d C r i c k & i . C o n f i r m e d t h a t D N A i s t h e t r a n s f o r m i n g p r i n c i p l e q . A v e r y, M a c L e o d a n d M c C a r t y & i i . D N A d o u b l e h e l i c a l m o d e l r . H e r s h e y a n d C h a s e & i i i . F i r s t i d e n t i f i e d D N A a s t h e t r a n s f o r m i n g p r i n c i p l e s . G r i f f i t h & i v . E x i s t e n c e o f a^{'} t r a n s f o r m i n g p r i n c i p l e^{'} \end{matrix}$

Q. Match the discoveries given under column I with the respective scientists given under column II.

\begin{matrix} Column I & Column II 1) Discovery of the transforming principle & A) Avery, Macleod, McCarty 2) Biochemical characterisation of & B) Hershey and Chase the transforming principle 3) Transduction experiment & C) Griffith \end{matrix}

Q. Choose the correct answer from the alternatives given :
Match column I with column II and select the correct option from the given codes.

	Column I (Scientists)		Column II (Discoveries)
A.	Alec Jeffreys	(i)	Lac operon
B.	F. Sanger	(ii)	Annotated DNA sequences
C.	Jacob and Monod	(iii)	DNA fingerprinting
D.	Avery, MacLeod and McCarty	(iv)	Transforming principle

Q. Oswald Avery and others have continued Griffth's transforming principle to prove DNA as genetic material substantiate.

Q. Transforming principle in Griffith's experiment was DNA. Who discovered it?

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