Which type of forensic evidence was available for scientists studying the case of the Romanovs?
A) fingerprint
B) toxicology
C) DNA
D) footprint
C
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A triplet of bases on an mRNA molecule is known as a(n)
A) amino acid. B) anticodon. C) codon. D) ribosome-binding sequence.
Genetic testing for complex traits ____
a. does not supply enough information to make it useful b. reveals the phenotype of the organism c. reveals the effects of the environment on the genome d. reveals how many genes are involved in producing the trait e. cannot exactly define risks
Which type of morphologic evidence shows the closest evolutionary relationship?
a. analogous structures b. structural plasticity c. homologous structures d. structural functions
As a botanist working for a field museum, you spend many hours in the field looking for new species. On a recent trip you may have discovered a new plant species. The plant is very short, and has a stem but no roots or leaves. The stem forks and has branches that have sporangia on the tips. Further analysis reveals vascular tissue. What type of plant might you have discovered?
A. Angiosperm B. Gingko C. Rhyniophyte D. Bryophyte E. Gymnosperm