How many different alleles can a gene have?
What will be an ideal response?
Theoretically, an extremely large number of possibilities exist. Various bases could change, giving a variety of alleles, and combinations of those changed bases could provide additional variety.
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Which of the following is/are considered (a) direct contact infection(s)?
A) syphilis B) gonorrhea C) skin infections D) syphilis, gonorrhea, and skin infections
In aquatic animals, the most disadvantaged in terms of respiratory media are those living in ____
a. cold saltwater b. cold freshwater c. warm saltwater d. warm freshwater e. warm brackish water
The hormone whose levels remain high when the body is suffering from inflammation and stress is _____
a. cortisol b. luteinizing hormone c. thymosin d. prolactin e. parathyroid hormone
Cellulose is
a. a polysaccharide found in cell walls. b. a component of cell membranes. c. an oligosaccharide. d. formed by hydrolysis of monosaccharides. e. a component of invertebrate exoskeletons.