Which of the following is true of the life cycle of mosses?
A) The haploid generation grows on the sporophyte generation.
B) Spores are primarily distributed by water currents.
C) Antheridia and archegonia are produced by gametophytes.
D) The sporophyte generation is dominant.
E) The growing embryo gives rise to the gametophyte.
Answer: C
You might also like to view...
Which statement is not true of the zygospore-forming fungi?
(a) They are in the phylum Zygomycota. (b) Ascospores are found in an ascus. (c) Rhizopus is a representative genus. (d) A zygospore is formed after fertilization.
The extracellular matrix in animals:
A. is located exclusively in connective tissue. B. is formed by many types of cells, primarily fibroblasts, on their cell surfaces. C. is a meshwork of insoluble fibrous proteins, primarily collagens, that assemble in a double helix. D. differs from one tissue to the next, affecting the expression of genes in the cells that it surrounds. E. is attached to cells by integrin junctions.
Which type of crossover event produces all four recombinant chromosomes?
A) single-strand crossover B) two-strand double crossover C) three-strand double crossover D) four-strand double crossover E) None of the above; all crossover events produce a combination of parental and recombinant chromosomes.
The rate of eukaryotic transcription after initiation is affected by:
a. upstream promoter elements. b. groups of genes arranged into operons. c. the action of catabolite activator proteins. d. how fast caps and tails can be added to pre-mRNA. e. enhancers