#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.
#Question id: 39514
#Biochemistry
Match the process with the key enzyme:
| Column I | Column II |
|---|---|
| A. DNA replication | 1. RNA polymerase |
| B. Transcription | 2. DNA polymerase |
| C. Translation | 3. Ribosome |
| D. DNA repair | 4. Endonuclease |