The use of phylogeny to determine evolutionary relationships has practical applications in ____
a. preserving extinct species
b. tracking infectious disease
c. tracking migration patterns
d. raising livestock
e. managing invasive species
ANSWER: b
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Alternative RNA splicing _____
A) is a mechanism for increasing the rate of transcription B) can allow the production of proteins of different sizes and functions from a single mRNA C) can allow the production of similar proteins from different RNAs D) increases the rate of transcription E) is due to the presence or absence of particular snRNPs
Reverse genetics is a process by which the functions of particular genes are worked out by disabling them. What process is used to knock out a gene or alter its expression?
a. molecular cloning b. genetic mapping c. gene targeting d. linkage analysis
The genes responsible for some of the traits that Mendel observed have been recently identified and have helped in determining how molecular variation produces morphologic variation in pea plants
Allelic variation in the Sbe1 gene, which produces starch-branching enzyme 1, is responsible for which trait in peas? A) round and wrinkled pea shape B) yellow and green pea color C) purple and white flowers D) tall and short plant height E) axial and terminal flower position
The amino acid sequences of human and bonobo hemoglobin are almost identical, yet they differ considerably from the sequence of the hemoglobin of wolves. This fact indicates that
A) bonobos are more closely related to humans than to wolves. B) wolves and bonobos are closely related. C) humans are more closely related to wolves than to bonobos.