#Question id: 39508
#Biochemistry
Regarding transgenic crops:
I. They may reduce the need for chemical pesticides
II. They can raise ecological and ethical concerns
III. They are completely risk-free
#Question id: 39509
#Biochemistry
Assertion (A): DNA polymerase cannot initiate DNA synthesis de novo.
Reason (R): DNA polymerase requires a free 3′-OH group.
#Question id: 39510
#Environmental Science
The most penetrating radiation is:
#Question id: 39511
#Biochemistry
Assertion (A): The lac operon is an inducible operon.
Reason (R): The operon is switched on in the presence of lactose.
#Question id: 39512
#Biochemistry
Assertion (A): PCR has wide applications in biotechnology and diagnostics.
Reason (R): PCR allows exponential amplification of DNA in vitro.
#Question id: 39513
#Biochemistry
Assertion (A): Metabolomics provides a snapshot of cellular metabolic status.
Reason (R): Metabolites are downstream products of gene and protein activity.