Genetic engineering is associated with:

Which one of the following is a case of wrong matching?

Which of the following may be considered as an application of biotechnology?

Match the following columns and select the correct option $:-$

Column-$I$	Column-$II$
$(A)$ Bacillus thuringiensis	$(I)$ Separation of $\text{DNA}$ fragments
$(B)$ Adenosine deaminase deficiency	$(II)$ Cellular defence
$(C)$ $\text{RNAi}$	$(III)$ Cry Proteins
$(D)$ Gel-Electrophoresis	$(IV)$ Gene Therapy

Read the following four statements $(1-4)$ and identify the two statements that contain mistakes:
$1.$ The first transgenic buffalo,Rosie,produced milk which was human alpha-lactalbumin enriched.
$2.$ Restriction enzymes are used in the isolation of $DNA$ from other macromolecules.
$3.$ Downstream processing is one of the steps of $R-DNA$ technology.
$4.$ Disarmed pathogen vectors are also used in the transfer of $R-DNA$ into the host.
Which are the two statements having mistakes?

Which of the following is used in biotechnology?