Harrison and van Buuren identified a phosphate transport protein in Glomus, which is a ____
a. carnivorous plant
b. bacterium that parasitizes plants
c. mycorrhizal fungus
d. bacteroid
e. parasitic plant
ANSWER: c
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Some viruses possess icosahedral heads and helical tails
Indicate whether the statement is true or false.
NOTE: The following questions with Punnet squares reflect on a consistent observation that students can commonly use Punnet squares easily, but frequently make mistakes setting them up
STEM/DATA In a population of wild-caught flies, you are focusing on the trait of bristle length. You find that the trait varies between two phenotypes where some flies have long bristles while others have very short bristles. You set up several matings between individual flies from this mixed population and observe the following results in the offspring: Mating # male parent female parent offspring phenotypes 1. long long all long 2. long long all long 3. short short some long, some short 4. short short all short 5. long short all short 6. long short some long, some short 7. short long some long, some short 8. short long all short The male and female offspring have the same chance of having either long or short bristles in each cross. Which phenotype is recessive? A. long B. short
The slender stalk that connects the flattened leaf blade to the stem in most dicots is the
A. meristem. B. petiole. C. stele. D. receptacle. E. vein.
R is the dominant allele for a round pea, r is the recessive allele for a wrinkled pea. If you cross plants
having round peas with plants having wrinkled peas,
a. both pea plants are homozygous. b. you are conducting a dihybrid cross. c. you are crossing two parental pea plants. d. the progeny plants will all have wrinkled peas. e. you will be able to determine if the round pea plant is homozygous or heterozygous.