Deuterostomes are characterized by ____ and ____ cleavage
a. radial; determinate
b. radial; indeterminate
c. spiral; determinate
d. spiral; indeterminate
e. blastopore;synapomorphy
b
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Promoters for genes that code for proteins can be isolated from a cDNA library.
Answer the following statement true (T) or false (F)
A new plant forms from a stem that broke off of the parent plant. This is an example of _____
a. parthenogenesis c. vegetative reproduction b. exocytosis d. nodal growth
What happens to ricin in the plant in which it is
found?
a. it is hydrolyzed and the amino acids that result are used to make new proteins b. it is complexed with carbohydrates to make a cell wall component c. it is broken down into monosaccharides that are then used to generate ATP d. it is hydrolyzed into fatty acids which are further hydrolyzed to make steroids e. it is hydrolyzed and the nucleotides that result are used to make DNA and RNA
On the Pacific island of Guam, large herbivorous bats called "flying foxes" commonly feed on cycad seeds, a potent source of neurotoxins. The flying foxes do not visit male cones. Consequently, what should be true?
A) The flying foxes are attracted to cycad fruit and eat the enclosed seeds only by accident. B) Flying foxes are highly susceptible to the effects of the neurotoxins. C) The flying foxes assist the beetles as important pollinating agents of the cycads. D) Flying foxes can be dispersal agents of cycad seeds if the seeds sometimes get swallowed whole (in other words, without getting chewed).