Frameshift mutations may involve _____
a. the substitution of nucleotides
b. the substitution of codons
c. the substitution of amino acids
d. the insertion of one to several base pairs
e. mutations in the promoter
ANSWER: d
You might also like to view...
Why don't all animals that group hunt show the same evolutionary trajectory?
What will be an ideal response?
Which would be more likely to cause illness-a water sample that tested positive for coliforms or one that tested positive for E. coli O157:H7?
A. Both would be equally capable of causing illness-all coliforms cause illness. B. The coliform positive sample would be more likely to cause illness. Coliforms are inherently more pathogenic than the weak O157:H7 lab strain of E. coli. C. The E. coli O157:H7 sample would be more likely to cause illness. This strain of bacterium is highly pathogenic and capable of causing kidney damage. D. Neither-there is usually a small amount of coliforms (including E. coli O157:H7) in all water.
A high-pitched sound is characterized by
A. a short wavelength and high frequency. B. a short wavelength and low frequency. C. a long wavelength and high frequency. D. a long wavelength and low frequency. E. a very long wavelength and very low frequency.
Oxygen generally forms two covalent bonds, while carbon generally forms four covalent bonds. In
contrast, helium is inert (generally does not form any bonds). Explain the reason for the differences in chemical behavior between these three elements.
What will be an ideal response?