Alternate forms of genes resulting from mutations are called ________.
A. alterons
B. isoforms
C. alleles
D. lethal
Answer: C
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Which of the following statements correctly traces the route of water through a sponge?
A. enters through the osculum into the spongocoel and exits via the ostia B. enters through the spongocoel into the osculum and exits via the ostia C. enters through the ostia into the osculum and exits via the spongocoel D. enters through the ostia into the spongocoel and exits via the osculum E. enters through the osculum into the ostia and exits via the spongocoel
The ____ components of blood are involved in the formation of clots
a. albumin and fibrinogen b. albumin and leukocytes c. fibrinogen and erythrocytes d. fibrinogen and platelets e. platelets and albumin
Gene expression is the same in both prokaryotes and eukaryotes; they are just regulated differently. What is gene expression?
a. discontinuation of the production of a gene due to an excess of the product b. a form of positive feedback where the product induces additional production of a protein c. the process of turning on a gene to produce RNA and protein d. a form of remote sensing similar to chemotaxis
What is the function of cotyledons in many plants?
a. to enclose and protect the seed b. to act as a short embryonic root c. to produce pollen d. to store food reserves e. to aid in seed dispersal