Which enzyme is used to synthesize a $cDNA$ probe from a messenger $RNA$ molecule?

  • A
    Restriction enzyme
  • B
    Reverse transcriptase
  • C
    $DNA$ polymerase
  • D
    Adenosine deaminase

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Similar Questions

Which of the following is the recognition sequence (target site) for the restriction enzyme $EcoRI$?

Match Column-$I$ with Column-$II$ and choose the correct combination from the options given below:
Column-$I$ Column-$II$
$(a)$ Cloning vector $(i)$ Agrobacterium
$(b)$ Ti-$DNA$ $(ii)$ pBR$322$
$(c)$ Disarmed pathogen $(iii)$ $GAATTC$
$(d)$ Recognition sequence $(iv)$ Transformation

What is the function of a selectable marker?

$pBR322$ was the first artificial cloning vector developed in $...A...$ by $...B...$ and $...C...$ from $E. coli$ plasmid. Here $A, B$ and $C$ can be:

Assertion : Plasmids are extrachromosomal $DNA$.
Reason : Plasmids are found in bacteria and are useful in genetic engineering.

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