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

Zinder and Lederberg

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Avery, Macleod and McCarty

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Lederberg and Tatum

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Zinder and Tatum

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Solution

The correct option is C Avery, Macleod and McCarty
Avery - MacLeod - McCarty experiment was an experimental demonstration which was reported in 1944 by Ostwald Avery, Colin MacLeod and Maclyn McCarty. They reported that the 'DNA is the substance that causes bacterial transformation.'

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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. What is Griffith transforming principle ? Explain Griffith experiments on streptococcus pneumoniae while searching for genetic material.

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

$\begin{matrix} C o l u m n - 1 & C o l u m n - i i p . W a t s o n a n d C r i c k & i . C o n f i r m e d t h a t D N A i s t h e t r a n s f o r m i n g p r i n c i p l e q . A v e r y, M a c L e o d a n d M c C a r t y & i i . D N A d o u b l e h e l i c a l m o d e l r . H e r s h e y a n d C h a s e & i i i . F i r s t i d e n t i f i e d D N A a s t h e t r a n s f o r m i n g p r i n c i p l e s . G r i f f i t h & i v . E x i s t e n c e o f a^{'} t r a n s f o r m i n g p r i n c i p l e^{'} \end{matrix}$

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. Assertion :In Griffiths experiment, a mixture of heat-killed virulent bacteria R and live non-virulent bacteria 5, lead to the death of mice. Reason: Transforming principle got transferred from heat-killed R strain to S strain and made it virulent.

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

The correct option is C Avery, Macleod and McCartyAvery - MacLeod - McCarty experiment was an experimental demonstration which was reported in 1944 by Ostwald Avery, Colin MacLeod and Maclyn McCarty. They reported that the 'DNA is the substance that causes bacterial transformation.'

The correct option is C Avery, Macleod and McCarty
Avery - MacLeod - McCarty experiment was an experimental demonstration which was reported in 1944 by Ostwald Avery, Colin MacLeod and Maclyn McCarty. They reported that the 'DNA is the substance that causes bacterial transformation.'