MCQOPTIONS
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MCQOPTIONS
This section includes 7 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Fragments of DNA formed after treatment with endonucleases are separated by the technique of _______ |
| A. | polymerase chain reaction |
| B. | gene amplification |
| C. | blotting |
| D. | gel electrophoresis |
| Answer» E. | |
| 2. |
The _______ in DNA are base pair sequences that are the same when read forward or backward from a central axis of symmetry. |
| A. | nucleases |
| B. | palindrome |
| C. | termination sequences |
| D. | amino acids |
| Answer» C. termination sequences | |
| 3. |
Restriction enzymes belong to a larger class of enzymes called ______ |
| A. | proteins |
| B. | proenzyme |
| C. | nucleases |
| D. | isozymes |
| Answer» D. isozymes | |
| 4. |
_____ was the first restriction endonuclease was isolated and characterized. |
| A. | EcoRI |
| B. | BamHI |
| C. | Hind II |
| D. | Sma I |
| Answer» D. Sma I | |
| 5. |
Restriction enzymes are also known as _________ |
| A. | ligase |
| B. | polymerase |
| C. | telomerase |
| D. | restriction endonucleases |
| Answer» E. | |
| 6. |
In genetic engineering, restriction enzymes cleave the DNA at a specific site known as _____ |
| A. | restriction |
| B. | recognition |
| C. | promoter |
| D. | sense |
| Answer» C. promoter | |
| 7. |
From which organism was the first restriction enzyme isolated? |
| A. | <em>Escherichia coli</em> |
| B. | <em>Salmonella typhimurium</em> |
| C. | <em>Bacillus cereus</em> |
| D. | <em>Staphylococcus aureus</em> |
| Answer» B. <em>Salmonella typhimurium</em> | |