Answer
416.1k+ views
Hint: It is a method that aid a colony or number of clones is inoculated on a different plate according to the numbered scheme. In this, each colony is tested by different types of methods, while maintaining the master plate from which the clones have been picked.
Complete answer:
-The experimental explanation of the genetic basis of adaptation is given by Joshua Lederberg and Esther Lederberg.
-They both have done an experiment on bacteria to explain the genetic basis of evolution. They inoculated a dilute suspension of bacteria on an agar plate and obtained a master plate
-They saw that after some time, the master plate contains many different bacterial colonies.
-Each colony which is produced by a repeated division from a single bacteria represents a clone. Hence, they prepared many same types of master plates on a new agar plate.
-Now, they tried to produce bacteria on the replica plate in presence of antibiotics i.e penicillin. They saw that many colonies of bacteria failed to grow on replica plates in the presence of antibiotics.
-Only some of the colonies seem to grow in the presence of Penicillin and found resistance and concluded that some bacteria have the ability to survive in a new environment.
-Survived colonies of bacteria show the genetic basis of evolution.
Lederberg’s replica plating experiment gave two explanations-
1)Lamarck’s view- when penicillin is given it induces changes in bacteria and enables the Bacteria to grow in a new environment.
2)Darwin's view- shows the selected view of survival as the original culture already has this variety and it's favored the new environment.
Note: -So, Lederberg’s replica plating experiment to show the genetic basis of evolution because many colonies in the presence of antibiotics were able to survive and found resistance to penicillin.
-penicillin-induced changes in bacteria and enable the bacteria to grow in a new environment.
-They also concluded that many mutations are random, not directed.
Complete answer:
-The experimental explanation of the genetic basis of adaptation is given by Joshua Lederberg and Esther Lederberg.
-They both have done an experiment on bacteria to explain the genetic basis of evolution. They inoculated a dilute suspension of bacteria on an agar plate and obtained a master plate
-They saw that after some time, the master plate contains many different bacterial colonies.
-Each colony which is produced by a repeated division from a single bacteria represents a clone. Hence, they prepared many same types of master plates on a new agar plate.
-Now, they tried to produce bacteria on the replica plate in presence of antibiotics i.e penicillin. They saw that many colonies of bacteria failed to grow on replica plates in the presence of antibiotics.
-Only some of the colonies seem to grow in the presence of Penicillin and found resistance and concluded that some bacteria have the ability to survive in a new environment.
-Survived colonies of bacteria show the genetic basis of evolution.
Lederberg’s replica plating experiment gave two explanations-
1)Lamarck’s view- when penicillin is given it induces changes in bacteria and enables the Bacteria to grow in a new environment.
2)Darwin's view- shows the selected view of survival as the original culture already has this variety and it's favored the new environment.
![seo images](https://www.vedantu.com/question-sets/11bca8f6-13de-45cb-a972-c6f0b35429884327647443211615670.png)
Note: -So, Lederberg’s replica plating experiment to show the genetic basis of evolution because many colonies in the presence of antibiotics were able to survive and found resistance to penicillin.
-penicillin-induced changes in bacteria and enable the bacteria to grow in a new environment.
-They also concluded that many mutations are random, not directed.
Recently Updated Pages
What are the figures of speech in the poem Wind class 11 english CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Write down 5 differences between Ntype and Ptype s class 11 physics CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Two tankers contain 850 litres and 680 litres of petrol class 10 maths CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
What happens when eggshell is added to nitric acid class 12 chemistry CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Why was Kamaraj called as Kingmaker class 10 social studies CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
What makes elections in India democratic class 11 social science CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Trending doubts
What is 1 divided by 0 class 8 maths CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Which are the Top 10 Largest Countries of the World?
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Give 10 examples for herbs , shrubs , climbers , creepers
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Differentiate between homogeneous and heterogeneous class 12 chemistry CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Difference between Prokaryotic cell and Eukaryotic class 11 biology CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Fill the blanks with the suitable prepositions 1 The class 9 english CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
The Equation xxx + 2 is Satisfied when x is Equal to Class 10 Maths
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
10 examples of evaporation in daily life with explanations
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Write a letter to the principal requesting him to grant class 10 english CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)