Bacteria typically have _______, whereas eukaryotes have _______.
a. one chromosome that is circular; many chromosomes that are linear
b. several chromosomes that are circular; many chromosomes that are linear
c. one chromosome that is linear; many chromosomes that are circular
d. two chromosomes that are circular; eight chromosomes that are linear
e. None of the above
Ans: a. one chromosome that is circular; many chromosomes that are linear
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The limitation associated with utilizing the Gram stain procedure includes all of the following except:
a. over decolorizing resulting in all organisms appearing gram negative. b. formation of crystals in the stain appearing as gram-positive rods. c. providing potential life-saving preliminary organism characteristics. d. variable Gram staining characteristics based on organism viability in preparation.
Experiments on the feeding preferences of newborn garter snakes born to coastal vs. inland California revealed that
even in the same species, differential instinctive responses can be ____.
a. learned b. genetic c. forgotten d. homozygous e. sex-linked
Most of the oxygen found in the blood is ____
a. bound to hemoglobin b. dissolved in the plasma c. dissolved in platelets d. bound to albumin e. bound to copper
Hemophiliacs have blood that does not coagulate well, and they often die at a young age. The disease allele is recessive and X-linked
Which genetic possibilities can be predicted for the offspring of a hemophiliac male and a nonhemophiliac female who is a carrier for the disease? A) All children would be hemophiliac. B) All females would be hemophiliac. C) All males would be hemophiliac. D) Some males and females could be hemophiliac.