Genetics - Section 1 Multiple Questions and Answers.
Exercise Questions ::
Genetics
| 26. | Which are characteristics of bacterial genetic material? |
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| A. | It is double-stranded and supercoiled |
| B. | It is single-stranded and relaxed |
| C. | It is circular and compacted into palindromes |
| D. | It is linear and attached to a protein scaffold. |
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Published by:Rehana Akram
| 27. | Which describes the structural properties of a eukaryotic chromosome? |
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| A. | It contains a double-helix composed of nucleosomes each with four million base-pairs |
| B. | It is one double-stranded linear DNA molecule bound to proteins for compaction |
| C. | It is arranged into a 30 nm fiber which is attached to the cell membrane |
| D. | It contains linker regions which are arranged into loops and coiled to form a helix. |
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Published by:Rehana Akram
| 28. | Which property is shared by the five histone proteins? |
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| A. | They are acidic proteins with relatively large molecular weights. |
| B. | They are multimeric proteins with high levels of Arg and Lys |
| C. | They are fibrous proteins with high amounts of α-helix. |
| D. | They are globular proteins with a positive charge |
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Published by:Rehana Akram
| 29. | If the following experimental results were obtained, which would be evidence against DNA being the genetic material? |
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| A. | The base composition of DNA is the same in two different cells of the same organism |
| B. | The viral components labeled with 32P remain outside the cell during a successful infection. |
| C. | The transforming factor isolated from a virulent bacterium is sensitive to deoxyribonucleases |
| D. | The base composition of DNA in an organism remains constant as the organism ages. |
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Published by:Rehana Akram
| 30. | Which is a property of both viral genetic material and bacterial genetic material? |
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| A. | Both can be double-stranded, circular DNA. |
| B. | Both can be single-stranded, linear RNA |
| C. | Both can be compacted into inverted repeats. |
| D. | Both can be compacted into plasmids. |
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Published by:Rehana Akram
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