The only source of all new alleles is:
a. natural selection.
b. genetic drift.
c. gene flow.
d. mutation.
e. genetic polymorphism.
D
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Ribosome inactivating proteins (RIPs) inhibit protein synthesis by preventing _____
a. mRNA from binding to the ribosome b. tRNA from binding to the ribosome c. the two halves of the ribosome from coming together d. the ribosome from moving forward from one codon to the next e. the newly synthesized amino acid chain from being released from the ribosome
Club fungi spend most of their lives as ____ mycelium
a. diploid b. haploid c. dikaryotic d. mycokaryotic e. triploid
The ras proto-oncogene family is a group of related genes that slow or stop the progression of cancer
a. True b. False
Aerobic cellular respiration differs from anaerobic respiration in that
A. aerobic cellular respiration only takes place in plants. B. anaerobic cellular respiration requires the presence of mitochondria. C. aerobic cellular respiration produces more ATP. D. anaerobic cellular respiration only uses the electron transport system.