The biochemical nature of transforming ...

The biochemical nature of transforming principal was defined by-
(a) Griffith
(b) Avery Macleod, McCarty
(c) Watson and Crick
(d) Taylor

Griffith

Avery Macleod, McCarty

Wastson and Crcik

Taylor

Text Solution

AI Generated Solution

The correct Answer is:

To determine the correct answer to the question regarding who defined the biochemical nature of the transforming principle, we can follow these steps: ### Step-by-Step Solution: 1. **Understanding the Question**: The question asks about the biochemical nature of the transforming principle, which refers to the substance responsible for genetic transformation in bacteria. 2. **Identifying Key Experiments**: The transforming principle was first identified in experiments involving Streptococcus pneumoniae by Frederick Griffith. However, he did not identify the biochemical nature of the transforming substance. 3. **Avery, MacLeod, and McCarty's Contribution**: In 1944, Avery, MacLeod, and McCarty conducted experiments that built upon Griffith's work. They isolated different types of biomolecules (proteins, DNA, and RNA) from the heat-killed virulent bacteria and tested which of these could transform non-virulent bacteria into virulent ones. 4. **Results of the Experiment**: Their experiments showed that only DNA was able to transform the non-virulent bacteria into virulent ones, thereby establishing that DNA is the genetic material and defining the biochemical nature of the transforming principle. 5. **Conclusion**: Based on this information, the correct answer to the question is (b) Avery, MacLeod, and McCarty. ### Final Answer: (b) Avery MacLeod, McCarty ---

Topper's Solved these Questions

MOLECULAR BASIS OF INHERITANCE
AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT (SECTION -A) Objective Type Questions|35 Videos
MOLECULAR BASIS OF INHERITANCE
AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT (SECTION -B) Objective Type Questions|36 Videos
MOLECULAR BASIS OF INHERITANCE
AAKASH INSTITUTE ENGLISH|Exercise TRY YOURSELF (Select true of false statement.)|3 Videos
MOCK_TEST_20
AAKASH INSTITUTE ENGLISH|Exercise EXAMPLE|31 Videos
MORPHOLOGY OF FLOWERING PLANTS
AAKASH INSTITUTE ENGLISH|Exercise TRY YOURSELF|38 Videos

Similar Questions

Explore conceptually related problems

Bacterial transformation was discovered by (a) Avery et al (b) Watson and Crick (c) Griffith (d) Hershey and Chase

(a) state the central dogma as proposed by francis crick are there any exceptions to it ? Suppport your answer with a reason and an example (b) Explain how the biochemical chraterisation (nature) of Transforming pronciple was determined which was not defined from Griffith 's experiments

(a) Explain Griffith's series of experiments where he witnessed transformation in bacteria he worked with. (b) Name the scientists responsible for determining the biochemical nature of "transforming principle" in Griffith's experiments. What did they prove?

(a) Explain Griffith’s series of exeeriments where he witnessed transformatio in bacteria he worked with. (b) Name the scientists responsible for determining the biochemical nature I “transforming principle” in Griffith’s experiments. What did they prove ?

Chromosomes were first seen by (a) Hofmeister (b) Waldeyer (c) Walter S. Sutton (d) Crick and Watson

Cell theory was proposed by (a) Schleiden and Schwann (b) Watson and Crick (c) Darwin and Wallace (d) Mendel and Morgan

(a) Describe the various steps of Griffith's experiment that led to the conclusion of the 'Transforming Principle'. (b) How did the chemical nature of the 'Transforming Principle' get established ?

(a) Describe the various steps of Griffith's experiment that led to the conclusion of the 'Transforming Principle'. (b) How did the chemical nature of the 'Transforming Principle' get established?