MCQOPTIONS
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MCQOPTIONS
This section includes 5 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which organism was used to detect the presence of thymidine on the newly formed DNA in 1958? |
| A. | Vivrio cholerae |
| B. | Treponema pallidum |
| C. | Vicia faba |
| D. | Escherichia coli |
| Answer» D. Escherichia coli | |
| 2. |
Which of the following is the heavy isotope of nitrogen? |
| A. | 14N |
| B. | 15N |
| C. | 13N |
| D. | 16N |
| Answer» C. 13N | |
| 3. |
In which organism was the “Semiconservative theory of DNA replication” first observed? |
| A. | Treponema pallidum |
| B. | Vibrio cholerae |
| C. | Staphylococcus pneumoniae |
| D. | Escherichia coli |
| Answer» E. | |
| 4. |
Which process is termed as “semiconservative DNA replication”? |
| A. | Presence of only newly synthesised strands in DNA |
| B. | Presence of only parental strands in DNA |
| C. | Presence of both parental and newly synthesised strands in DNA |
| D. | Presence of a hybrid variety of strands |
| Answer» D. Presence of a hybrid variety of strands | |
| 5. |
When the process of replication is over, each DNA molecule will end up with one parental and one newly synthesised strand. |
| A. | True |
| B. | False |
| Answer» B. False | |