QUESTION 1
- When two alleles of the same gene are different, the individual carrying those alleles is said to be ____.
| a. | recessive | |
| b. | heterozygous | |
| c. | phenotypic | |
| d. | somatic | |
| e. | homozygous |
1 points
QUESTION 2
- A pleiotropic gene ____.
| a. | acts on secondary sexual characteristics | |
| b. | influences multiple traits | |
| c. | is additive | |
| d. | produces lethal effects when homozygous | |
| e. | produces epigenetic effects |
1 points
QUESTION 3
- Which of the following molecules are able to cut DNA molecules at specific sequences?
| a. | assembly enzymes | |
| b. | hydrolytic enzymes | |
| c. | restriction enzymes | |
| d. | ligase enzymes | |
| e. | repair enzymes |
1 points
QUESTION 4
- An X-linked carrier is a ____.
| a. | homozygous dominant female | |
| b. | heterozygous female | |
| c. | homozygous recessive female | |
| d. | homozygous male | |
| e. | heterozygous male |
1 points
QUESTION 5
- Which process consists of modifying an individual’s genome?
| a. | DNA hybridization | |
| b. | PCR | |
| c. | SNPing | |
| d. | DNA profiling | |
| e. | genetic engineering |
1 points
QUESTION 6
- Sequencing the human genome was possible with the use of ____ sequencing methods.
| a. | automated | |
| b. | mRNA | |
| c. | electrophoretic | |
| d. | international | |
| e. | patented |
1 points
QUESTION 7
- When DNA fragments are inserted into plasmids, the resulting recombinant molecules must be introduced into ____ in order for the DNA to be replicated.
| a. | rabbits | |
| b. | humans | |
| c. | bacteria | |
| d. | mice | |
| e. | chimpanzees |
1 points
QUESTION 8
- If R
is dominant to r, the offspring of the cross of RRwith rr
will ____.
| a. | have a unique phenotype | |
| b. | have the same phenotype as the RR parents | |
| c. | have the same phenotype as the rr parents | |
| d. | have the same genotype as the RR parents |
|
| e. | have the same genotype as the rr parents |
1 points
QUESTION 9
- Genetic recombination as a result of crossing over occurs more readily between genes that are ____.
| a. | on the sex chromosomes | |
| b. | near the centromere | |
| c. | located close together on the same chromosome | |
| d. | located far apart on the same chromosome | |
| e. | located on different chromosomes |
1 points
QUESTION 10
- Currently, the only possible cure for genetic disorders is ____.
| a. | genetically modified drugs | |
| b. | transplantation | |
| c. | whole genome replacement | |
| d. | gene therapy | |
| e. | GMOs |
1 points
QUESTION 11
- One of the advantages of PCR is the ability to ____.
| a. | sequence DNA | |
| b. | transcribe DNA into mRNA transcripts | |
| c. | make millions of copies of the entire genome | |
| d. | double the amount of a rare DNA sequence | |
| e. | make millions of copies of a rare DNA sequence |
1 points
QUESTION 12
- Various forms of the same gene are called ____.
| a. | genotypes | |
| b. | alleles | |
| c. | somatic | |
| d. | recessive | |
| e. | phenotypes |