Of 400 people who dwell on a Pacific island, 16 are
homozygous recessive for a trait that has only two
different types of alleles in the population. The
number of heterozygous people is
a. 256.
b. 32.
c. 64.
d. 128.
e. 384.
Answer: d
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You discover a fungus that only makes sexual spores (no asexual spores). The spores are made in groups of four on
the tips of club-shaped structures. Into which group should you classify this fungus?
a. Glomeromycota b. Basidiomycota c. Chytridiomycota d. Zygomycota e. Ascomycota
What does it mean if a plant is dioecious?
A. The sporophyte and the gametophyte are on the same plant. B. There are separate male and female sporophytes. C. Pollination and fertilization are separate events. D. There is double fertilization of the embryo.
The symbiotic relationship with fungi called mycorrhizae
A. allows plants to take up minerals such as phosphorus. B. existed only millions of years ago. C. only benefits the fungus. D. causes disease in the infected plant.
Which of the following organisms is photoautotrophic protozoan?
A) oomycote B) cellular slime mold C) Euglena D) Phytophthora E) plasmodial slime mold