Which of the following represents a test cross?
A. TT × TT
B. Tt × Tt
C. Tt × tt
D. TT × Tt
E. tt × tt
Answer: C
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Replication of chromosomal DNA occurs __________.
A. to repair gene damage caused by mutation B. in the cytoplasm of a eukaryotic cell C. whenever a cell makes protein D. before a cell divides
The gene coding for Bt crystals have been genetically engineered into crop plants in order to:
a) make crops less sensitive to herbicides. b) make crops more resistant to insects. c) make crops more sensitive to herbicides. d) make crops grow faster. e) make crops develop larger fruits and vegetables.
You go the store to buy some lard for cooking. You notice when you get home that the lard is solid at room temperature. What does this tell you about the fat in lard, and how does this explain it being solid at room temperature? What type of fat would
not be solid at room temperature, and why? What will be an ideal response?
What is predicted to be the increase in the Earth's temperature by the end of the century?
A. 1.1-6.4 degrees Fahrenheit B. 8.0-13.5 degrees Fahrenheit C. 4.0-10.5 degrees Fahrenheit D. 2.0-11.5 degrees Fahrenheit