Home
Class 11
BIOLOGY
A DNA segment in which both strands are ...

A DNA segment in which both strands are labelled with `""^(15)N` is transferred to `""^(14)N` medium & allowed it to replicate 3 times. How many daughter molecules show both the strands with `""^(14)N`

A

6

B

4

C

2

D

1

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • BIOMOLECULES

    AAKASH SERIES|Exercise EXERCISE - II (Enzymes)|13 Videos
  • BIOMOLECULES

    AAKASH SERIES|Exercise EXERCISE - III (Previous AIPMT/NEET Questions)|84 Videos
  • BIOMOLECULES

    AAKASH SERIES|Exercise EXERCISE - II (Lipids)|18 Videos
  • BIOLOGICAL CLASSIFICATION

    AAKASH SERIES|Exercise EXERCISE-III (Previous AIPMT/NEET Question)|37 Videos
  • CELL CYCLE AND CELL DIVISION

    AAKASH SERIES|Exercise Exercise-III|18 Videos

Similar Questions

Explore conceptually related problems

If 50 heavy DNA (N^(15)) molecules are replicated 2 times in N^(14) medium

When a DNA molecule with one radioactive strand undergoes repeated replications in a medium without radioactivity for five times the number of radio labelled strands in the daughter DNA molecules

How many electrons can fit in the orbital for which n = 3 and l = 1?

The elements which show both positive and negative oxidation states. i) N ii) H iii) O iv) F

A box contains N coins, m of which are fair and the rest are biased. The probability of getting a head when a fair coin is tossed is 1/2, while it is 2/3 when a biased coin is tossed. A coin is drawn from the box at random and is tossed twice. The first time it shows head and the second time it shows tail. What is the probability that the coin drawn is fair ?

An orbital is designated by certain values of first three quantum numbers (n, l and m) and according to Pauli.s exclusion principle, no two electrons in a atom can have all the for quantum numbers equal. N, l and m denote size, shape and orientation of the orbital. The permissible values of n are 1,2,3.... prop while that of 1 are all possible integral values from 0 to n-n. Orbitals with same values of n and 1 but different values of m (where m can have any integral values from 1 to +1 including zero) are of equal energy and are called degenerate orbitals. However degeneracy is destroyed in homogeneous external magnetic field due to different extent of interaction between the applied field and internal electronic magnet of different orbitals differing in orientations. In octahedral magnetic field external magnetic field as oriented along axes while in tetrahedral field the applied field actas more in between the axes than that on the axes themselves. For 1=0, 1,2,3,...., the states (called sub-shells) are denoted by the symbol s,p,d,f.....respectively. After f, the subshells are denoted by letters alphabetically 1 determines orbital angular motion (L) of electron as L = sqrt(l(l+1))(h)/(2pi) ON the other hand, m determines Z-component of orbital angular momentum as L_(Z) = m((h)/(2pi)) Hund.s rule states that in degenerate orbitals electrons do not pair up unless and until each each orbitals has got an electron with parallesl spins Besides orbital motion,an electron also posses spin-motion. Spin may be clockwise and anticloskwise. Both these spin motions are called two spins states of electrons characterized by spin Q.N (s) : s = +(1)/(2) and = -(1)/(2) respectively The sum of spin Q.N. of all the electrons is called total spin(s) and 2s+1 is called spin multiplicity of the configuration as a whole. The spin angular momentum of an electron is written as L_(s) = sqrt(s(s+1))(h)/(2pi) According to Hund.s rule, the distribution of electron within the various orbitals of a given sub-shell is one which is associated with

Two narrow bores of diameters 3.00mm and 6.0mm are joined together to form a U-tube open at both ends. If the U-tube contains water, what is the difference in its levels in the two limbs of the tube? Surface tension of water at the temperature of the experiment is 7.3 times 10^-2 N m^-1 .Take the angle of contact to be zero and density to water to be 1.0 times 10^3 kg m^-3

AAKASH SERIES-BIOMOLECULES-EXERCISE - II (Nucleic acids)
  1. How many H-bonds are formed between the two strands of dsDNA of 170A^(...

    Text Solution

    |

  2. If the DNA fragment of length 102A (@) has 8 adenines, what is the num...

    Text Solution

    |

  3. How many hydrogen bonds are present between complementary nitrogen bas...

    Text Solution

    |

  4. Chargaff rule is not applicable to

    Text Solution

    |

  5. The length of DNA in one chromosome is 510 A^(@). It has 20% of 6-amin...

    Text Solution

    |

  6. How many coded nitrogen bases are present in m-RNA from which a polype...

    Text Solution

    |

  7. How many nucleotides are present in 170 A^(@) length of DNA?

    Text Solution

    |

  8. A scientist isolated a piece of DNA whose length is 136 A^(@) by using...

    Text Solution

    |

  9. A DNA segment in which both strands are labelled with ""^(15)N is tran...

    Text Solution

    |

  10. An organism exclusively with 70S type of ribosomes contains one of the...

    Text Solution

    |

  11. The arrangement of atoms and molecular groups in DNA and RNA can be st...

    Text Solution

    |

  12. Arrange the following in ascending order based upon their molecular we...

    Text Solution

    |

  13. In DNA the oxygen atom is lost from the pentose sugar molecule at this...

    Text Solution

    |

  14. The term nucleic acids was given by

    Text Solution

    |

  15. Nucleic acids were discovered in the nuclei of

    Text Solution

    |

  16. phixx-174 bacteriophage has

    Text Solution

    |

  17. If there is a double stranded DNA virus particle with 20,000 base pair...

    Text Solution

    |

  18. A+G = C+T, then it is

    Text Solution

    |

  19. The unit which is formed by sugar and nitrogen- base of beta-glycosidi...

    Text Solution

    |

  20. The proteins associated with nucleic acids are

    Text Solution

    |