Home
Class 12
BIOLOGY
(a) Identify the selectable maekes in th...


(a) Identify the selectable maekes in the diagram in the diagram of E. Coli vectior shown above .
( b) How is the coding squence of `alpha`- galactosides consider a batter markes than the ones identified by you in the diagram ? Explain.

Text Solution

Verified by Experts

a-Ampicillin resistance.
d-Tetracycline resistance.
The insertion ofrDNA into the coding sequences of enzyme a-galactosidase leads to the inactivation of the enzyme called insertion inactivation. The recombinants do not produce a blue coloured colonis in the presence of chromogenic substrate while the non-recombinants produce a blue colour .Thus coding sequence of a-galactosidase is a better marker.
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • XII BOARDS

    XII BOARDS PREVIOUS YEAR|Exercise SET-II|44 Videos

  • XII BOARDS

    XII BOARDS PREVIOUS YEAR|Exercise SET-III|57 Videos

  • XII BOARDS

    XII BOARDS PREVIOUS YEAR|Exercise C.B.S.E CLASS XII|31 Videos

  • SAMPLE PAPER 2019

    XII BOARDS PREVIOUS YEAR|Exercise Section E Part B|3 Videos

Similar Questions

Explore conceptually related problems

Identify a,b,c,d and e in the given diagram :-

Identify the following coelom shown in the diagrams A, B and C

Knowledge Check

  • Identify the parts a,b,c,d,e,g and g in the diagram of Labeo rohita

    A
    a-nostril, b-eye, c-dorsal fin,d-anal fin,
    B
    a-nostril, b-eye, c-anal fin, d-caudal fin, e-dorsal fin, f-pectoral fin, g-pelvic fin
    C
    a-nostril, b-eye,c-dorsal fin, d-caudal fin, e-anal fin, f-pelvic fin, g-pectoral fina
    D
    a-nostril, b-eye, c-dorsal fin, d-caudal fin, e-pectoral fin, f-anall fin, g-pelvic fin

  • Identify A,B,C,D in the given diagram of E.coli cloning vector pBR322.

    A
    `{:(A" "B" "C" "D),("Hindi 1"" ""EcoR1"" "amp^(R)" ""ori"):}`
    B
    `{:(A" "B" "C" "D),("Hindi 1"" ""BamH1"" "kan^(R)" "amp^(R)):}`
    C
    `{:(A" "B" "C" "D),("BamH1"" ""Pst 1"" "Ori" "amp^(R)):}`
    D
    `{:(A" "B" "C" "D),("EcoR 1"" ""BamH1"" "amp^(R)" ""ori"):}`

  • Identify the A, B, C, D and E in the following diagram

    A
    A-Cell membrane, B-Cell wall, C-DNA, D- Heterocyst, E-Mucilagenous sheath
    B
    A- Mucilagenous sheath, B-Cell membrane, C- DNA, D- Heterocyst, E-Cell wall
    C
    A-Cell wall, B-Cell membrane, C-DNA, D-Heterocyst, E-Mucilagenous sheath
    D
    A-Cell wall, B-Cell membrane, C-Heterocyst, D-DNA, E-Mucilagenous sheath

    • Similar Questions

    Explore conceptually related problems

    Identify and explain A,B and C in the PCR diagram given below.

    Identify parts labeled A and B in the given diagram and selecte the correct option.

    Identify the A, B, C, D, E and F in the given diagram

    Identify parts labelled A, B, and C in the given diagram and select the correct option.

    Identify A,B,C,D and E in the given diagram of arrangement of teeth

    Home
    Profile