MCQ ON GENETIC ENGINEERING class 12 for NEET | GENETIC ENGINEERING class 12 | MCQ GENETIC ENGINEERING with Answer | Check the below NCERT MCQ question for class 12 Biology based on the with Answers.
MCQ ON GENETIC ENGINEERING class 12 for NEET
MCQ on GENETIC ENGINEERING class 12 Biology with answers were prepared based on the latest pattern.We have provided class 12 Biology MCQs questions on GENETIC ENGINEERING with Answers to help students understand the concept very well.
MCQ ON GENETIC ENGINEERING is useful for NEET / CSIR / UGC / CBSE / ICSE / AIIMS / EXAM / AFMC EXAM / STATE LEVEL MEDICAL EXAM 2022-23, 2023-24
Introduction:
GENETIC ENGINEERING each biotechnology involved in synthesis of artificial genes, repair of genes, through fusion , deletion, inversion, shifting of genes, production of recombinant DNA and manipulating them for improvement in human being , plants, animals and microbes. Important ispect of genetic engineering is recombined DNA technology in which desired DNA sequences from different sources are obtained and joined together to form a new recombination or recombinant DNA gives desire product or traits. Recombined DNA technology is also called gene splicing is it involves cutting and pasting of desire DNA . To important discovery in bacteria presents of plasmid and restriction endonuclease.
MCQ ON GENETIC ENGINEERING class 12 for NEET
1. Restriction endonuclease is employed for cutting
(a) A single stranded DNA
(b) Double stranded DNA
(c) RNA fragments
(d) mRNA
Ans (b) Double stranded DNA
2. Which is enzyme is useful in genetic engineering
(a) DNA- ase
(b) Amylase
(c) Lipase
(d) Restriction endonuclease
Ans. (d) Restriction endonuclease
3. It is l
possible to breed plants and animals for desire characters through
(a) tissue culture
(b) genetic engineering
(c) embryo culture
(d) meristem culture
Ans. (b) genetic engineering
4. Advancement in genetic engineering has been possible due to discovery of
(a) Oncogenes
(b) Transposons
(c) Restriction endonuclease
(d) Exonuclease
Ans.(c) Restriction endonuclease
5. Genetic engineer bacteria being used in commercial production of
(a) melatonin
(b) testosterone
(c) human insulin
(d) thyroxine
Ans.(c) human insulin
6. Transgenic plants are developed by
(a) introducing foreign genes
(b) introducing gene mutations
(c) deleting certain chromosome parts
(d) stopping spindle formation
Ans.(a) introducing foreign genes
7. Bacteria plasmid contains
(a) RNA
(b) RNA + protein
(c) DNA
(d) petrol chromosome
Ans.(c) DNA
8. Two bacteria most useful in genetic engineering are
(a) rhizobium and azotobacter
(b) Escherichia coli and agrobacterium
(c) rhizobium and diplococcus
(d) Nitrosomanas and klebsiella
Ans.(b) Escherichia coli and agrobacterium
9. Enzyme required for polymerase chain reaction is
(a) RNA polymerase
(b) Ribonuclease
(c) Taq polymerase
(d) Endonuclease
Ans. (c) taq polymerase
10. With the help of DNA ligase donor DNA fragment is joined. It is called
(a) molecular cloning
(b) tissue culture
(c) protoplasmic fusion
(d) splicing
Ans. (a) molecular Cloning
11. Abnormal gean is replaced by normal gene is called
(a) gene therapy
(b) Cloning
(c) mutation
(d) none of the above
Ans.(a) gene therapy
12. Nucleic acid is fragmented by enzyme
(a) ligases
(b) proteases
(c) nucleases
(d) polymerases
Ans . (c) nucleases
13.Bt cotton has been produced by
(a) in situ hybridization of Bt cotton
(b) northern blotting of Bt gene
(c) Cloning of Bt gene
(d) All the above
Ans.(c) Cloning of Bt gene
14. In genetic engineering which is used to for transfer of gene from one cell to another.
(a) vector
(b) probe
(c) plasmid
(d) virus
Ans. (a) vector
15. Tumour inducing plasmid used in producing transgenic plant is that of
(a) Escherichia coli
(b) bacillus thuringiensis
(c) agrobacterium tumefaciens
(d) All the above
Ans.(c) Agrobacterium tumefaciens
16. Golden rice will help in
(a) producing petrol like fuel
(b) pest resistance
(c) herbicide tolerance
(d) alleviation of vitamin A
Ans.(d) alleviation of vitamin A
17.SCID is caused by defective gene coding for enzyme
(a) adenosine deaminase
(b) adenosine transaminase
(c) adenosine transferase
(d) All the above
And.(a) adenosine deaminase
18. PCR technique was invented by
(a) Boyer
(b) Karry Mullis
(c) Cohn
(d) All the above
Ans. (b) Karry Mullis
19. Which is used in gene cloning
(a) mesosome
(b) plasmids
(c) lomasomes
(d) nucleotides
Ans.(b) plasmids
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20. Genetic modified BT brinjal has been developed in India for
(a) enhancing self life
(b) enhancing mineral content
(c) drought resistance
(d) insect resistance
Ans.(d) insect resistance
21.In hybridoma technology
(a) B- cells are fused with myeloma cells
(b) T-cells are fused with myeloma cells
(c) T – cells are fused with B- cells
(d) none of the above
Ans.(a) B- cells are fused with myeloma cells
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