The figure above represents
a. a chromosome in the G1 phase of
interphase.
b. two chromosomes in metaphase plate.
c. an original chromosome with a duplicate.
d. the entire genome of the organism.
e. none of these.
C
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Symptoms of infectious mononucleosis include
A. sore throat, fever, cervical lymphadenopathy, and splenomegaly. B. fever, severe diarrhea, pneumonitis, hepatitis, and retinitis. C. fever and pocks on skin. D. vesicular lesions in oral mucosa.
During a microarray analysis, cDNAs made from normal cells are stained with a green fluor and cDNAs from
abnormal cells are stained with a red fluor. Which of the following statements is true about the results of this experiment?
a. Red spots indicate genes that are under expressed in abnormal cells. b. Red spots indicate genes that are not expressed in abnormal cells. c. Red spots indicate genes that are overexpressed in abnormal cells. d. Red spots indicate genes that are overexpressed in normal cells. e. Red spots indicate pseudogenes.
Which element is a density-dependent factor that controls the size of a population?
a. wind velocity b. light intensity
c. resource availability d. temperature e. wave action in an intertidal zone
Lymphocytes and other white blood cells are produced in the:
A) bone marrow. B) thymus gland. C) lymph nodes. D) heart.