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1 | |
The structure of DNA is considered a single helix. |
| | A) | True |
| | B) | False |
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2 | |
DNA replication is semi-conservative. |
| | A) | True |
| | B) | False |
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3 | |
The process of DNA replication creates two identical double helices of the DNA molecule. |
| | A) | True |
| | B) | False |
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4 | |
A mutation is a DNA sequence change that can be repaired by the cell. |
| | A) | True |
| | B) | False |
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5 | |
DNA and RNA are both double helices. |
| | A) | True |
| | B) | False |
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6 | |
The function of a protein is determined by its shape. |
| | A) | True |
| | B) | False |
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7 | |
In humans, the genetic code differs from that of other organisms. |
| | A) | True |
| | B) | False |
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8 | |
Translation requires three steps: initiation, elongation, and expression of the new polypeptide. |
| | A) | True |
| | B) | False |
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9 | |
Several ribosomes, called a polyribosome, can move along a single mRNA at the same time. |
| | A) | True |
| | B) | False |
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10 | |
DNA in the nucleus contains a quartet code. |
| | A) | True |
| | B) | False |
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11 | |
Each group of three bases on mRNA is a codon. |
| | A) | True |
| | B) | False |
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12 | |
Cells are different because of which genes are being expressed. |
| | A) | True |
| | B) | False |
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13 | |
Transcription activators are proteins that bind to DNA before transcription can occur. |
| | A) | True |
| | B) | False |
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14 | |
Humans share many genes with simpler organisms such as bacteria. |
| | A) | True |
| | B) | False |
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15 | |
Patterns of gene sequence differences are called exons. |
| | A) | True |
| | B) | False |
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16 | |
Less than 2% of the DNA in human chromosomes code for proteins. |
| | A) | True |
| | B) | False |
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17 | |
Biotechnology can alter bacteria to produce human proteins. |
| | A) | True |
| | B) | False |
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18 | |
DNA hydrogenase seals the human gene and the plasmid, forming recombinant DNA. |
| | A) | True |
| | B) | False |
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19 | |
DNA fingerprinting can only be used on cells from living specimens. |
| | A) | True |
| | B) | False |
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20 | |
PCR, along with electrophoresis, is used in DNA fingerprinting. |
| | A) | True |
| | B) | False |
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21 | |
PCR makes use of DNA sequences that code for proteins. |
| | A) | True |
| | B) | False |
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22 | |
Transgenic plants and animals can be engineered to make hormones, clotting factors, antibodies, and medicines. |
| | A) | True |
| | B) | False |
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