In mushrooms, the sexual spores are produced in a(n) ________.
A. sporangiophore
B. sporophyte
C. basidium
D. ascus
Answer: C
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What can you conclude from these results?
You are breeding different varieties of roses in your garden. When you cross a true-breeding yellow "Texas Beauty" rose with a true-breeding "Ruby" red rose, you get all red roses. But when you cross a "Texas Beauty" yellow with the yellow variety "Jealousy," you get a 9:7 ratio of red to yellow flowers! A. The environment, and not genes, influences pigment in these rose varieties. B. There are epistatic interactions between at least two genes for rose pigment. C. The red allele is dominant to the yellow allele. D. There is a mutation in the gene for yellow pigment in the "Jealosy" variety. E. There is no recessive allele for the red pigment gene.
Diseases constantly present in a population are called
A. epidemic. B. chronic. C. latent. D. endemic.
A taxon that diverges earlier than the other taxa being considered in cladistic analysis is a(n):
a. clade. b. outgroup. c. shared taxon. d. derived taxon. e. homologous taxon.
True or False: Fimbriae and pili are both composed of proteins
a. TRUE b. FALSE