The genes that determine where appendages will develop on the animal’s body are called
a. ideotic genes
b. homeobox
c. Hox genes
d. homeotic genes
e. homeodomains
C
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Biological magnification of persistent toxins would be greatest in a
A. deer. B. oak tree. C. black bear. D. fox. E. mushroom.
The cells of the immune system that are responsible for attacking cells that have been infected with a virus are the:
a. B-cells b. cytotoxic T-cells c. helper T cells d. suppressor T cells (T regulatory cells)
If a diploid cell has 12 chromosome pairs, how many different combinations of chromosomes are possible in gametes after meiosis?
A) 1012 B) 122 C) 212 D) 1212 E) 1220
Imagine you are studying horns in male deer and you hypothesize that horns are costly honest signals that help to prevent male fights. What three testable predictions should you make to test your hypothesis?
What will be an ideal response?