Which laws were formulated by Mendel?
A) thermodynamics
B) gravity
C) ideal gas laws
D) heredity
E) diffusion
D) heredity
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Infection with HIV (human immunodeficiency virus) typically _____
A) increases the level of helper T cells for the first year after infection B) eliminates all T cells immediately C) leads to an immediate decrease in the number of HIV in the blood D) alters mitochondrial but not genomic DNA sequences E) is found in B cells but not in T cells
Describe normal embryo formation and two mechanisms of nondisjunction represented in the figure and identify the consequences of these chromosomal anomalies
What will be an ideal response?
Which of the following is an important vasodilator in coronary arteries?
A) adenosine B) nitric oxide C) endothelin-1 D) oxygen E) bradykinin
Using the periodic table as your tool, identify the atomic characteristic that would most quickly and efficiently identify any single element.
A. number of neutrons and electrons B. number of protons and electrons C. number of shells D. number of neutrons