MCQ
Assertion: Plasmids are single-stranded extra chromosomal $DNA$.

Reason: Plasmids are usually present in eukaryotic cells.

  • A
    If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.
  • B
    If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.
  • If both the Assertion and Reason are incorrect.
  • D
    If the Assertion is correct but Reason is incorrect.

Answer

Correct option: C.
If both the Assertion and Reason are incorrect.
c
Plasmid is a extra chromosomal $DNA$ present in prokaryotes e.g., bacteria.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

Adenosine Deaminase $(ADA)$ deficiency can be cured by $\ldots A \ldots$ and $\ldots B . \ldots$ but it is not fully curative. Here $A$ and $B$ can be
Hybrid vigour is induced by
The chemicals which are “pro-life” with reference to human beings
Same group of ancestors have formed the mammals adapted to running, flying and swimming. This proves:
Consider the following statements about therapeutic drugs

$I$. The recombinant $DNA$ technology is used for production of therapeutic drugs which are safe and effective

$II$. It avoid unwanted immunological responses, commonly observed with similar products isolated from non-human sources

$III$. About thirty recombinant therapeutics have been approved for human use in the world including India

Which of the statements given above are correct?

Bacteria were grown in a medium containing heavy isotope of nitrogen ($N^{15}$) for many generations and all their $DNA$ contained many heavy nitrogen only. A bacterium of this type was transferred to normal medium and allowed to duplicate. After two divisions of heavy $DNA$ is likely to be that
In a dihybrid cross, F2 phenotypic ratio is 13 : 3. It is case of:
Mark the correct statement
Community is

$I.$ Group of independent, interacting populations of same species

$II.$ Group of independent and interacting populations of same species in specific area

$III.$ Group of independent interacting populations of different species in a specific area

$IV.$ Group of independent and interacting populations of different species in different area

Select the correct option

Fimbriated funnel is