Parthenogenesis ____
a. is a form of sexual reproduction
b. involves the growth and development of a sperm cell without fertilization
c. involves the growth and development of an egg without fertilization
d. occurs through budding
e. always produces haploid offspring
ANSWER: c
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According to the Hardy—Weinberg principle, microevolution occurs when ____
a. a population experiences a shift in allele frequencies b. no mutations are occurring in a population c. a population is closed to migration from other populations d. a feature of an individual animal changes through use or disuse e. when a population has different forms of the same gene
Organic compounds are distinguished by molecules that contain ________ bonded to other elements
A) nitrogen B) carbon C) oxygen D) hydrogen
What is the correct order of reproduction in members of phylum Basidiomycota?a. Cytoplasmic fusion results in a dikaryotic mycelium.b. The mycelium produces basidiocarps.c. Nuclear fusion produces a diploid nucleus.d. Meiosis produces basidiospores.e. Spores germinate into haploid hyphae.f. Basidia develop on the gills of the mushroom.g. Basidiospores are released.
A. a - c - f - d - c - g - e B. a - b - f - d - c - g - e C. a - b - f - c - d - g - e D. a - d - b - f - c - g - e
How does the large amount of genetic variation observed in prokaryotes arise?
A.) The mutation rate in prokaryotes is much higher than in eukaryotes. B.) They have extremely short generation times and large populations. C.) They can exchange DNA with many types of prokaryotes by way of horizontal gene transfer. D.) They have a relatively small genome. E.) The second and third answers are correct.