Home
Class 12
CHEMISTRY
The two samples of DNA, A and B have mel...

The two samples of `DNA,` `A` and `B` have melting tempreatures `(T_(m)) 340` and `350 K`,respectively. Can you draw any conclusion from this data regarding their base content?

Text Solution

Verified by Experts

The `B` sample of `DNA` having hegher `T_(m)` must be having more `GC` content as compared to sample`A`, since `GC` base pair having three hydrogen bonds (as compared to `AT` base pair having only two hydrogen bonds) results in stronger bonding.
Promotional Banner

Topper's Solved these Questions

  • BIOMOLECULES

    CENGAGE CHEMISTRY ENGLISH|Exercise Solved Examples|45 Videos
  • BIOMOLECULES

    CENGAGE CHEMISTRY ENGLISH|Exercise Exercises (Concept Application)|25 Videos
  • AROMATIC COMPOUNDS AND ALKYL AND ARYL HALIDES

    CENGAGE CHEMISTRY ENGLISH|Exercise Archives Subjective Type|4 Videos
  • CARBOXYLIC ACIDS AND THEIR DERIVATIVES

    CENGAGE CHEMISTRY ENGLISH|Exercise Exercises Archives (Analytical And Descriptive)|34 Videos

Similar Questions

Explore conceptually related problems

Two samples of DNA, A and B have melting points 340K and 350 K respectively. This is because

Let A and B be two finite sets having m and n elements respectively. Then the total number of mappings from A to B is

Let A and B be two finite sets having m and n elements respectively. Then the total number of mappings from A to B is

Two bodies A and B have thermal emissivities of 0.01 and 0.81 respectively. The outer surface areas of the two bodies are same. The two bodies emit total radiant power at the same rate. The wavelength lambda_B corresponding to maximum spectral radiancy from B is shifted from the wavelength corresponding to maximum spectral radiancy in the radiation from A by 1.0 mum . If the temperature of A is 5802 K, calculate (a) the temperature of B, (b) wavelength lambda_B .

Two bodies A and B have thermal emissivities of 0.01 and 0.81 respectively. The outer surface areas of the two bodies are same. The two bodies emit total radiant power at the same rate. The wavelength lambda_B corresponding to maximum spectral radiancy from B is shifted from the wavelength corresponding to maximum spectral radiancy in the radiation from A by 1.0 mum . If the temperature of A is 5802 K, calculate (a) the temperature of B, (b) wavelength lambda_B .

Two satellites, A and B, have masses m and 2m respectively. A is in a circular orbit of radius R, and B is in a circular orbit of radius 2R around the earth. The ratio of their kinetic energies, T_(A)//T_(B) , is :

Two satellites , A and B , have masses m and 2m respectively . A is in a circular orbit of radius R , and B is in a circular orbit of radius 2R around the earth . The ratio of their energies , K_A/K_B is :

A 5 kg block in connected with two spring A and B having force constant, K_1 = 200N/m and K_2 = 300 N/m respectively as shown in the figure . The block is released from rest with both the springs in natural length. The maximum energy stored in the spring A will be

Two blocks A and B are shown in figure have masses 5 kg and 4kg respectively. The system is released from rest. The speed of B after A has travelled the distance 1 m along the incline is (take g= 10m/s^2 ,pulleys and strings are ideal and plane is smooth)

Two trains A and B moving with speeds 20m//s and 30m//s respectively in the same direction on the same straight track, with B ahead of A . The engines are at the front ends. The engine of train A blows a long whistle. Assume that the sound of the whistle is composed of components varying in frequency from f_(1) = 800 Hz to f_(2) = 1120 Hz , as shown in the figure. The spread in the frequency (highest frequency - lowest frequency) is thus 320 Hz . The speed of sound in still air is 340 m//s . The speed of sound of the whistle is