What is the term for the sudden and involuntary contraction of a muscle?
a. spasm
b. twitch
c. tetanus
d. treppe
e. paralysis
A
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In garden peas, one pair of alleles controls the height of the plant, and a second pair of alleles controls flower color
The allele for tall (D) is dominant to the allele for dwarf (d), and the allele for purple (P) is dominant to the allele for white (p). A tall plant with white flowers crossed with a dwarf plant with purple flowers produces 1/4 tall purple, 1/4 tall white, 1/4 dwarf purple, and 1/4 dwarf white. What is the genotype of the parents? What will be an ideal response?
Four of the following statements about crocodilians are true. Which statement is false?
a. They live in or near water. b. They are predators with sharp teeth. c. They have a two-chambered heart. d. They have powerful jaws. e. They are the closest living relatives to birds.
A new antibiotic is introduced that will destroy only organisms lacking a nuclear membrane. A dispute develops over its safety when used in people. What arguments would you use in this discussion?
What will be an ideal response?
An abnormally short frenulum of the tongue produces which of the following conditions?
A. Ankyloglossia B. Bifid Tongue C. Macroglossia D. Microglossia E. Frenulitis