To answer the following questions, refer to the five items listed below:
A. The function of these is to cut apart foreign DNA molecules.
B. The combination of a foreign piece of DNA with the DNA of another organism.
C. The pieces of DNA that are moved by a genetic engineer from one organism to another are first incorporated into these.
D. These are bacterial populations containing thousands or millions of identical copies of one to several genes.
E.
A. restriction enzymes
B. recombinant DNA
C. plasmids
D. clones
E. restriction sites
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On the island of Madeira, two populations of house mice have accumulated different Robertsonian translocation. Which are true about these two populations of mice? (Select all that apply.)
A) They have fewer chromosomes than mice in other areas of the world. B) They are isolated from each other geographically. C) If mice from different populations mate, their offspring are sterile. D) Mice from different populations are unable to mate with each other. E) They are becoming extinct because of semi sterility.
In cocker spaniels, black coat color (B) is dominant over red (b), and solid color (S) is dominant over
spotted (s). If two dihybrids (Bb Ss) were crossed, what fraction of the black, solid offspring would be homozygous? a. 4/16 b. 9/16 c. 1/9 d. 3/16 e. 3/4
Why are negative feedback loops more effective at maintaining homeostasis than positive feedback loops?
What will be an ideal response?
Which of these muscles would be most involved in a forcible exhalation, as in a sneeze?
A) sartorius B) rectus abdominis C) deltoid D) gastrocnemius