How is the new strain of wheat stem rust
fungus spreading around the world?
a. spores are carried by birds
b. viral vectors carried in insects
c. imported infected wheat
d. wind dispersal of spores
e. none of these
D
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Your father is heterozygous for a recessive disorder. You know your mom has two "good" alleles
What is the probability that you will have the disorder?
a. 0% b. 25% c. 50% d. 75% e. 100%
Phospholipids for cellular membranes are created in which component of the endomembrane system?
a. Golgi apparatus b. lysosomes c. rough endoplasmic reticulum d. smooth endoplasmic reticulum
A carbohydrate energy storage molecule found in animal liver and muscle cells is:
a. starch. b. glycogen. c. cellulose. d. a fatty acid. e. cholesterol
In order to construct an evolutionary classification of modern-day aquatic vertebrates, what is the best source of information?
A) the DNA sequence B) the structure of organs C) the position of appendages D) the distribution of scales