1. Mutations are changes in genes. They are NOT harmful and can provide variations to a species.
A. true
B. false
2. Cystic fibrosis is the result of a defective _________ that allows mucus to build up in the lungs and pancreas. Today, scientists are working to someday insert healthy copies of a gene to prevent this build-up of mucus.
A. Nucleotide
B. Protein
C. DNA
D. RNA
3. A genetic disorder that is caused by chromosomes not separating properly during meiosis and resulting in three chromosome #21 is called _________________.
A. Colorblindness
B. Muscular Dystrophy
C. Hemophilia
D. Down's Syndrome
4. Karyotypes are used to display all of the chromosomes within a nucleus. There are 23 total pairs; 22 of the pairs are autosomes and the remaining pair are the sex chromosomes.
A. true
B. false
5. Most often, mutations are __________. They are carried by individuals that are heterozygous for that trait. Therefore, they are not often expressed by the carrier.
A. Dominant
B. Recessive
C. Heterozygous
D. Homozygous
6. Fragments of chromosomal DNA are separated by the process of ___________
A. sequencing
B. electrophoresis
C. radioactive labeling
D. ultraviolet radiation
7. The cross between an orange and a grapefruit to produce a tangelo is an example of _____
A. selective breeding
B. inbreeding
C. sequencing
D. genetic engineering
8. A karyotype is a display of SOME of the chromosomes in a cell's nucleus.
A. true
B. false
9. If plants could be genetically engineered to produce their own nutrients the need for ___________
A. pesticides would be eliminated
B. herbicides would be eliminated
C. fertilizer would be elimenated
D. water would be eliminated
10. The phenomenon that results when individuals from different species are crossed to produce a species hardier than either parent is ___________________ .
A. genetic engineering
B. biotechnology
C. inbreeding
D. hybrid vigor
11. A gene that codes for resistance to glyphosate has been added to the genome of certain plants. These plants will _________________ .
A. produce chemicals that kill weeds growing near them
B. die when exposed to glyphosate
C. convert glyphosate to water
D. survive when glyphosate is sprayed on the field
12. Transferring normal genes into human cells that lack them ______________ .
A. is impossible at this time
B. would cause cancer
C. will cause antibodies to kill those cells
D. is called human gene therapy
13. Scientists can conduct any type of experiments they want to.
A. true
B. false
A. true
B. false
2. Cystic fibrosis is the result of a defective _________ that allows mucus to build up in the lungs and pancreas. Today, scientists are working to someday insert healthy copies of a gene to prevent this build-up of mucus.
A. Nucleotide
B. Protein
C. DNA
D. RNA
3. A genetic disorder that is caused by chromosomes not separating properly during meiosis and resulting in three chromosome #21 is called _________________.
A. Colorblindness
B. Muscular Dystrophy
C. Hemophilia
D. Down's Syndrome
4. Karyotypes are used to display all of the chromosomes within a nucleus. There are 23 total pairs; 22 of the pairs are autosomes and the remaining pair are the sex chromosomes.
A. true
B. false
5. Most often, mutations are __________. They are carried by individuals that are heterozygous for that trait. Therefore, they are not often expressed by the carrier.
A. Dominant
B. Recessive
C. Heterozygous
D. Homozygous
6. Fragments of chromosomal DNA are separated by the process of ___________
A. sequencing
B. electrophoresis
C. radioactive labeling
D. ultraviolet radiation
7. The cross between an orange and a grapefruit to produce a tangelo is an example of _____
A. selective breeding
B. inbreeding
C. sequencing
D. genetic engineering
8. A karyotype is a display of SOME of the chromosomes in a cell's nucleus.
A. true
B. false
9. If plants could be genetically engineered to produce their own nutrients the need for ___________
A. pesticides would be eliminated
B. herbicides would be eliminated
C. fertilizer would be elimenated
D. water would be eliminated
10. The phenomenon that results when individuals from different species are crossed to produce a species hardier than either parent is ___________________ .
A. genetic engineering
B. biotechnology
C. inbreeding
D. hybrid vigor
11. A gene that codes for resistance to glyphosate has been added to the genome of certain plants. These plants will _________________ .
A. produce chemicals that kill weeds growing near them
B. die when exposed to glyphosate
C. convert glyphosate to water
D. survive when glyphosate is sprayed on the field
12. Transferring normal genes into human cells that lack them ______________ .
A. is impossible at this time
B. would cause cancer
C. will cause antibodies to kill those cells
D. is called human gene therapy
13. Scientists can conduct any type of experiments they want to.
A. true
B. false