In Mendel's pea plants, yellow seeds are dominant to green seeds. If a true-breeding green-seed-producing plant is crossed to a heterozygous yellow-seed-producing plant, what percentage of offspring produces green seeds?
A) 100 percent B) 25 percent C) 50 percent D) 33 percent E) 10 percent
Answer: C
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Coated vesicles known as ________ are thought to potentially be associated with cholesterol uptake and/or have a role in signal transduction.
Fill in the blank(s) with the appropriate word(s).
Like the insects, the arachnids (spiders and so on) have
a. three pairs of walking legs. b. one pair of antennae. c. true mandibles. d. an abdomen.
Which of the following represents the largest anthropogenic source of sulfur released to the atmosphere?
A) fixation for agricultural fertilizer B) burning of fossil fuels C) trash-burning incinerators D) biomass burning
A taxon is the general name for a group of organisms that exhibit a set of shared traits.
Answer the following statement true (T) or false (F)