Heterozygotes for the Tay-Sachs disease allele appear to have greater than normal resistance to
_____________________, which supports the theory that _____________________ explains why this harmful allele
persists in the gene pool. Fill in the blank(s) with the appropriate word(s).
tuberculosis; natural selection
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The ________ is a group of proteins needed for DNA synthesis that assembles at the origin of replication.
A. prospore B. septum C. replisome D. None of the choices are correct.
What is the function of a crop as found in an
earthworm and other animals?
a. grinds food b. absorbs nutrients c. exit for waste d. stores food e. entrance for food
The left ventricle has a more muscular wall than the other three chambers of the heart because the left ventricle
A) must generate enough blood pressure to pump blood into the aorta and throughout the body. B) pumps blood more rapidly than the other chambers. C) pumps blood into the atria. D) must decrease the amount of pressure on the blood so it can flow more smoothly. E) receives blood directly from major arteries.
Where do the processes indicated by the letter C occur?
a. within the mitochondrial intermembrane space
b. on the inner mitochondria membrane
c. on the outer mitochondrial membrane
d. within the mitochondrial matrix