Biotechnology
1. A cell with 16 chromosomes undergoes mitosis. How many chromosomes will each daughter cell have
a. 8
b. 16
c. 24
d. 32
e. None of the above,
2. A cell with 16 chromosomes undergoes meiosis How many chromosomes will each daughter cell have
a. 8
b. 16
c. 24
d. 32
e. None of the above,
3. Which of the following might be useful to cure cancer?
a. Induce apoptosis.
b. Add telomerase.
c. Mutate a protooncogene.
d. Antisense DNA
e. A and D.
4. Which of the following is formed when a stem cells divides?
a. Two stem cells.
b. One stem cell and one founder cell.
c. Two differentiated tissue cells.
d. Two totipotent cells.
e, Blood cells
5. Genomics is the study of
a. all of the proteins in a cell.
b. all of the genes in a cell.
c. all of the genetic material in an organism.
d. chromosomes.
e. B and C.
6. A gene is best defined as
a. DNA.
b. a section of DNA encoding a cell's enzymes.
c. a section of DNA encoding a cell's proteins and RNA.
d. a piece of a chromosome.
e. None of the above.
7. Restriction enzymes
a. copy DNA to make DNA.
b. digest DNA in specific places.
c. restrict access of harmful molecules into cells.
d. copy DNA to make RNA.
e. copy RNA to make DNA.
8. The P in PCR refers to
a. an enzyme that makes DNA.
b. an enzyme that cuts DNA.
c. an enzyme that makes RNA.
d. an enzymes that attaches pieces of DNA togetner.
e. protein
9. What is the advantage of being able to clone the gene for human insulin?
a. Human insulin is more variable that other sources of insulin.
b. There are too few cows, pigs, and horses to provide an adequate supply of insulin.
c. Human insulin is less likely to provoke an allergic reaction than cow, pig, or horse insulin.
d. Cow, pig, or horse insulin cannot keep a diabetic alive for more than three months.
e. Using human insulin increases the probability that, in the future, the diabetic can be weaned from a dependence on insulin.
10. Assume you have some DNA from a dinosaur that you would like to compare to that of modern birds and reptiles. Which of the following would be the most useful for increasing the amount of dianosaur DNA available for testing?
a. RFLP
b. PCR
c. Electroporation
d. Gel electrophoresis
e. Southern blotting
11. Which of the following is (are) involved in embryonic development?
a. Cell division
b. Cell differeneitation
c. Morphogenesis
d. A and B only
e. A, B and C
12. The fact that plants can be cloned from somatic cells demonstates that
a. differentiated cells retain all the genes of the zygote.
b. genes are lost during differentiation.
c. the differentiated state is normallly unstable.
d. differentiated cells contain mRNA.
e. differentiatiation does not occur in plants.
13. In cloning, the ability of a transplanted nucleus to support development
a. is inversely related to the age of the donor.
b. depends on the DNA base sequence.
c. only occurs in plants.
d. depents on the size of the genome.
e. depends on the nucleus not changing.
14. A cell that remains entirely flexible in its developmental possibilities is said to be
a. differentiated.
b. determined.
c. totipotent.
d. morphogenic.
e. genomic.
15. In animals, embryotic stem cells differ from adult stem cells in that
a. embryonic stem cells have fewer genes than adult stem cells.
b. embryonic stem cells are pluripotent and adult stem cells are totipotent.
c. embryonic stem cells have more genes than adult stem cells.
d. embryonic stem cells are totipotent and adult stem cells are pluripotent.
e. embryonic stem cells are localized in specific sites within the embryo, whereas adult stem cells are spread throughout the body.