Which of the following is a characteristic of whisk ferns?
a. yellow knobs on branch tips
b. deep, branching roots
c. large, fringed fronds
d. reddish-brown sporophytes
a. yellow knobs on branch tips
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Which group is most closely related to bonobos?
a. tarsiers b. humans c. lorises d. orangutans e. gibbons
Which is the normal start codon for protein synthesis?
a. AUG b. UAA c. UAG d. UGA e. GGU
The outer part of the enzyme linked receptor has a binding site for a signaling molecule, and the part of
the receptor that extends into the cytosol has a binding site for a specific G protein. __________________ Indicate whether the statement is true or false.
In some ciliate protozoa, the codons UAA and UAG encode glutamate, rather than acting as STOP codons. How does this compare to other species?
A. This is unusual - almost all species share the same "universal" genetic code. B. This is not unusual - while most species have a similar genetic code, there are often variations for some of the amino acids. C. This is typical - every species has its own unique genetic code.