Which one of the following is not important to the concept of homology?
A. Homologous features must be found in a common ancestor.
B. It can include anatomical, physiological, or molecular features.
C. Features must share a common developmental pattern.
D. Species with homologous features must be related.
E. None of the features being compared can be vestigial.
E. None of the features being compared can be vestigial.
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What do biologists use in order to identify
clones that contain the DNA fragment of interest?
a. probes b. plasmids c. templates d. primers e. ligases
Four of the five answers listed below are long chains of sugars. Select the exception
a. polysaccharides b. oligosaccharides c. complex carbohydrates d. corn starch e. potato starch
The function of the malleus, incus, and stapes in the middle ear is to:
a. amplify the vibrations of sound waves. b. cause the organ of Corti to rub against the tectorial membrane. c. detect movement of the endolymph in the cochlear duct. d. relieve pressure differences between the middle ear and atmosphere. e. give support to the membranous labyrinth.
Streptococcus is now considered to be a reemerging pathogen.
Answer the following statement true (T) or false (F)