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Biotechnology: Principles and Processes — BIOLOGY STD 12 Science — Question

Maharashtra BoardEnglish MediumSTD 12 ScienceBIOLOGYBiotechnology: Principles and Processes1 Mark
MCQ
Two statements are given $-$ one labelled Assertion and the other labelled Reason. Select the correct answer to these questions from the codes $(a), (b), (c)$ and $(d)$ as given below.
Assertion : In recombinant $\text{DNA}$ technology, human genes are often transferred into bacteria $($prokaryotes$)$ or yeast $($eukaryote$)$.
Reason : Both bacteria and yeast multiply very fast to form huge populations which express the desired gene.
  • ✓
    Both assertion and reason are true and reason is the correct explanation of assertion.
  • B
    Both assertion and reason are true but reason is not the correct explanation of assertion.
  • C
    Assertion is true but reason is false.
  • D
    Both assertion and reason are false.
✓

Answer

Correct option: A.
Both assertion and reason are true and reason is the correct explanation of assertion.
In recombinant $\text{DNA}$ technology, widely used host for replication and amplification of recombinant $\text{DNA}$ are prokaryotic $E$. coli and the eukaryotic yeast.
They replicate very fast to form a large population which expressed desired gene.
Yeast artificial chromosome $\text{(YAC)}$ are important cloning tools for the analysis of complex genome such as that of humans.
​​​​​​​They allow the maintenance, propagation and analysis of such genome in an experimentally tractable system, the yeast.

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