Book Online Demo
Check Your IQ
Try Test

Courses

Dropper NEET CourseDropper JEE CourseClass - 12 NEET CourseClass - 12 JEE CourseClass - 11 NEET CourseClass - 11 JEE CourseClass - 10 Foundation NEET CourseClass - 10 Foundation JEE CourseClass - 10 CBSE CourseClass - 9 Foundation NEET CourseClass - 9 Foundation JEE CourseClass -9 CBSE CourseClass - 8 CBSE CourseClass - 7 CBSE CourseClass - 6 CBSE Course
Offline Centres

Q.

Given diagram depicts the experiment of Meselson and Stahl. Identify the type of isotopic DNA formed after 40 minutes (A, B, C and D).

Question Image
 ABCD
114N DNA15N DNA14N DNA15N DNA
214N DNA15N DNA14N DNA14N DNA
314N DNA14N DNA15N DNA15N DNA
414N DNA15N DNA15N DNA15N DNA

see full answer

Start JEE / NEET / Foundation preparation at rupees 99/day !!

21% of IItians & 23% of AIIMS delhi doctors are from Sri Chaitanya institute !!
An Intiative by Sri Chaitanya

a

A-14N-DNA, B-15N-DNA, c-14N-DNA, D-155N-DNA

b

A-14N-DNA, B-15N-DNA, C-14N-DNA, D-14N-DNA

c

A-14N-DNA, B-I144N-DNA, C-15N-DNA, D-15N-DNA

d

A-14N-DNA, B-15N-DNA, C-15N-DNA, D-15N-DNR

answer is B.

(Unlock A.I Detailed Solution for FREE)

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Detailed Solution

In Meselson and Stahl experiment after 40 minutes , there will be formation of 50% hybrid DNA and 50% light DNA . here in given diagram A-DNA and D-DNA  are light DNA ( both the strands are with 14N),B-DNA and C-DNA are hybrid DNA (one strand is with 14N and another strand is with 15N).As D-DNA is light DNA ,there is no 15N strand in D-NA .

Watch 3-min video & get full concept clarity
Related Blogs
Get ₹ 1 crore* worth scholarship for JEE / NEET / Foundation
Result Producing online coaching for JEE/NEET of south India
Largest All India Test Series for JEE/NEET
Best Books for IIT JEE
Best Books for NEET
How to Join IIT after 10th
score_test_img

Get Expert Academic Guidance – Connect with a Counselor Today!

Related Blogs
Get ₹ 1 crore* worth scholarship for JEE / NEET / Foundation
Result Producing online coaching for JEE/NEET of south India
Largest All India Test Series for JEE/NEET
Best Books for IIT JEE
Best Books for NEET
How to Join IIT after 10th
whats app icon