Multigene families
a. come from a single gene duplication event.
b. come from repeated cycles of gene duplication followed by mutation.
c. from single point mutations.
d. come from exon shuffling.
e. come from deletions of genes.
B
You might also like to view...
Match the following nerve locations or functions with the correct division of the autonomic nervous system (sympathetic or parasympathetic) by writing an "S" or "P" next to the phrase
______ accelerate heart rate ______ decrease heart rate ______ dilate pupil ______ constrict pupil ______ stimulate activity of stomach and intestines ______ inhibit activity of stomach and intestines ______ relaxes lung bronchi ______ constricts lung bronchi ______ nerves branch from middle region of the spinal cord ______ nerves branch from the brain and the posterior region of spinal cord What will be an ideal response?
A fungus that is dikaryotic ________
a. has two unique nuclei b. is diploid c. is haploid d. has two identical nuclei
The cells that line the inside of the blastopore become the
A) nervous system. B) muscles. C) skin. D) skeleton. E) digestive tract.
Enzymes are
A. fats. B. sugars. C. starches. D. proteins.