Questions on Biotechnology: MCQ Test No. 7
Biotechnology: MCQs Test - 07
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Enhancing shelf life
Enhancing mineral content
Monoclonal antibody production
Recombinant DNA technology
All prokaryotic cells
Annealing, Synthesis, Denaturation
Synthesis, Annealing, Denaturation
Denaturation, Annealing, Synthesis
Denaturation, Synthesis, Annealing
Ligase - Molecular scissors
Thermus aquaticus - Bt-gene
Agrobacterium tumefaciens - Tumour
Hind II - Plasmid vector
mixing the medium with antifungal agents
filtering the medium through fine sieve
autoclaving of medium at 120° for 15 min
keeping the medium at –20°C
Constructing recombinant DNA by joining with vectors
Transformation of plant cells
Disarming pathogen vectors
DNA finger printing
Gives high yield and is rich in vitamin A
Does not require chemical fertilizers and growth hormones
Give high yield but has no characteristic aroma
Is completely resistant to all insect pests and diseases of paddy
in the eight cell stage the individual cells are separated under electrical field for further development in culture media
the egg is divided into 4 pairs of cells which are implanted into the womb of other cows
in the eight cell stage, cells are separated and cultured until small embryos are formed which are implanted into the womb of other cows.
from this up to eight identical twins can be produced
5′ CACGTA 3′; 3′ CTCAGT 5′
5′ CGTTCG 3′; 3′ ATGGTA 5′
5′ GATATG 3′; 3′ CTACTA 5′
5′ GAATTC 3′; 3′ CTTAAG 5′
Assertion: In recombinant DNA technology, human genes are often transferred into bacteria (prokaryotes) or yeast (eukaryote).
Reason: Both bacteria and yeast multiply very fast to form huge population, which express the desired gene.
Both Assertion and Reason are true and the Reason is the correct explanation of the Assertion.
Both Assertion and Reason are true but the Reason is not the correct explanation of the Assertion.
Assertion is true statement but Reason is false.
Both Assertion and Reason are false statements.
Compare the statements A and B.
Statement A: Synthesis of DNA takes place in the S-phase of interphase.
Statement B: Every chromosome, during metaphase, has two chromatids.
Choose the correct description :
Statement A is correct and B is wrong.
Statement A is wrong and B is correct.
Both the statements A and B are correct and A is not the reason for B.
Both the statements A and B are correct and A is the reason for B.