NEET Biology is the vey important paper in the medical entrance exam. Here, you will discover the NEET Biology MCQs and Answers for all Concepts as per the latest syllabus. NEET Biology Plasmid Multiple Choice Questions
MCQs on Plasmid :
1. Which of the following gene helps in identifying transformed cells?
(a) plasmid
(b) selectable marker
(c) structural gene
(d) vector
Answer
Answer: (b)
(a) Polymerase III
(b) EcoRI
(c) Ligase
(d) Taq polymerase
Answer
Answer: (c)
3. Find the incorrect statement about plasmids
(a) they are circular
(b) they replicate independently
(c) they are transferrable
(d) they are single stranded
Answer
Answer: (d)
4. The DNA molecule used for integrating foreign gene for cloning is called
(a) vector
(b) carrier
(c) template
(d) transformer
Answer
Answer: (a)
5. Which one of the following is correct for the plasmid pBR322 of E.coli.?
(a) ampR and tetR – antibiotic resistance genes
(b) Hind III and EcoRI – selectable markers
(c) rop – reduced osmotic pressure
(d) ori – original restriction enzyme
Answer
Answer: (a)
6. The Ti plasmid is found in
(a) Agrobacterium
(b) Yeast as a 2mm plasmid
(c) Rhizobium of the roots of leguminous plants
(d) Azotobacter
Answer
Answer: (a)
7. Replication of plasmid DNA other than initiation is controlled by
(a) bacterial gene
(b) mitochondrial gene
(c) plasmid DNA
(d) none of these
Answer
Answer: (a)
8. Antibiotics are used in genetic engineering. They are useful
(a) to keep culture free of microbial infections
(b) to select healthy vectors
(c) to identify replication start sites
(d) as selectable markers
Answer
Answer: (d)
9. A single-stranded, radiolabelled molecule of nucleic acids is called
(a) plasmid
(b) vector
(c) probe
(d) selectable marker
Answer
Answer: (c)
10. A vector that can clone only a small DNA fragment is
(a) cosmid
(b) plasmid
(c) Yeast artificial chromosome
(d) Bacterial artificial chromosome
Answer
Answer: (b)