Botulinum toxin has been used for all of the following purposes except
a. for cosmetic purposes, to treat “dynamic wrinkles.”
b. to treat facial and eyelid spasms.
c. for OCD and autism.
d. to treat dystonias, prolonged muscle contractions.
e. for certain types of cerebral palsy.
Answer: c. for OCD and autism.
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The emergence of land plants correlated with the near ____ of the genes that bryophytes inherited from a(n)____
ancestor.
a. doubling; liverwort b. doubling; algal c. tripling; liverwort d. tripling; algal e. quadrupling; algal
A mutation in the Apetala1 gene, in Brassica
oleracea plants (wild cabbage) results in mutated flowers that a. have multiple female parts. b. have multiple male parts. c. have leaves instead of petals. d. have enormous size. e. burrow into the ground like peanuts.
A pregnant woman who smokes risks
a. delivering an underweight baby. b. a greater chance of miscarriage. c. a greater chance of stillbirth. d. a greater chance of premature delivery. e. all of these.
How are apoptosis and mitosis related?
What will be an ideal response?