Comparison of __________ has been recently used to support the hypothesis that fungi are more
closely related to animals than to plants.
a. mitochondrial DNA sequences
b. mitochondrial tRNA sequences
c. ribosomal RNA sequences
d. ribosomal protein sequences
e. histone sequences
C
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A flower on a plant represents which level of organization?
A. atom. B. cell. C. organ. D. organism. E. population.
Sewage treatment that involves horizontal flow in an agitated aeration tank is referred to as
A. trickling filter processing. B. activated sludge treatment. C. lagooning. D. endogenous respiration.
If a patient has an injury in the brain stem, which of the following would be observed?
A) auditory hallucinations B) visual hallucinations C) an inability to regulate body temperature D) an inability to regulate heart function
The sex of birds, some insects, and other organisms is determined by a ZW chromosomal arrangement in which the males have like sex chromosomes (ZZ) and females are ZW (similar to XY in humans). Assume that a recessive lethal allele on the Z chromosome
causes death of an embryo in birds. What sex ratio would result in the offspring if a cross were made between a male heterozygous for the lethal allele and a normal female? A) 4:1 male to female B) 3:1 male to female C) 2:1 male to female D) 1:1 male to female E) 1:2 male to female