The basis of $DNA$ fingerprinting is
The double helix
Errors in base sequence
Polymorphism in sequence
$DNA$ replication
Read the following four statements $(A-D)$ about certain mistakes in two of them.
$(A)$ The first transgenic buffalo, Rosie produced milk which was human alpha lactalbumin enriched.
$(B)$ Restriction enzymes are used in isolation of $DNA$ from other macromolecules.
$(C) $ Downstream processing is one of the steps of $rDNA$ technology.
$(D)$ Disarmed pathogen vectors are also used in transfer of $rDNA$ into the host.
Which of the two statements have mistakes ?
Yeast is an important source of
Match the following columns and select the correct option.
Column $- I$ | Column $- II$ |
$(a)$ Bt cotton | $(i)$ Gene therapy |
$(b)$ Adenosine deaminase deficiency | $(ii)$ Cellular defence |
$(c)$ $RNAi$ | $(iii)$ Detection of $HIV$ infection |
$(d)$ $PC R$ | $(iv)$ Bacillus thuringiensis |
$(a)\quad(b)\quad(c)\quad(d)$
Which of the following is not an advantage of $GM$ crops?
Differentiation of organs and tissues in a developing organism, is associated with