Which of the following represents the correct order?
Shown below are steps in making a transgenic plant.
1. Expose plant cells to Agrobacterium tumefaciens
2. Place plant cells on selective medium
3. Transform the recombinant plasmid into Agrobacterium tumefaciens
4. Insert gene of interest into Ti plasmid
5. Place plant cells on growth medium with plant hormones
A. 5 - 1 - 4 - 3 - 2.
B. 4 - 3 - 1 - 2 - 5.
C. 4 - 1 - 3 - 5 - 2.
D. 2 - 4 - 1 - 3 - 5.
E. None of the choices shows the correct order.
B. 4 - 3 - 1 - 2 - 5.
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The purpose(s) of the pulmonary circuit in a closed circulatory system is to
a. collect and distribute blood within the heart. b. take blood to and from all parts of the body. c. take blood to and from the lungs. d. collect and distribute blood within the heart and take blood to and from all parts of the body. e. take blood to and from all parts of the body and take blood to and from the lungs.
What instrument is most effective for pressure-temperature sterilization?
A. Bunsen burner B. Water-bath C. Incubator D. Oven E. Autoclave
Two genes, A and X, exhibit incomplete linkage. The frequency of each parental gamete (AX and ax) is 45%. What is the approximate frequency of the Ax gamete?
What will be an ideal response?
During sporulation, Clostridium perfringens produces ________, which typically cause food poisoning symptoms ________ after consumption of contaminated food
a. enterotoxins / 7–15 hours b. enterotoxins / 24–36 hours c. exotoxins / 7–15 hours d. exotoxins / 24–36 hours