Select the correct option based on statements below:
Assertion (A): | Plasmids are extrachromosomal DNA. |
Reason (R): | Plasmids are found in bacteria and are useful in genetic engineering. |
1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
3. | (A) is true but (R) is false. |
4. | Both (A) and (R) are false. |
Select the mismatch:
Column I | Column II | |
1. | Gas vacuoles | Green bacteria Cells |
2. | Large central vacuoles | Animal cells |
3. | Protists | Eukaryotes |
4. | Methanogens | Prokaryotes |
Read the statements and select the correct option.
Statement- A | Mesosome helps in cell wall formation in prokaryotes. |
Statement- B | They are infolding of plasma membrane. |
1. | Both A and B are correct |
2. | Both A and B are incorrect |
3. | Only A is correct |
4. | Only B is correct |