Which of the following is NOT a known effect
in the expression of Marfan syndrome?
a. lanky, loose jointed skeleton
b. weakened blood vessels
c. calcium deposits in aorta
d. excessive absorption of oxygen causing the
blood cells to swell
e. skin becomes inelastic
D
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Bacteriophage that have single-stranded genomes are specialized to minimize energy requirements because just one strand is necessary for replication
Indicate whether the statement is true or false.
When a neurotransmitter released from one neuron binds to a ______ on a second neuron, that neuron depolarizes and fires.
A. G-protein coupled receptor B. nuclear receptor C. voltage-gated ion channel D. enzyme-linked receptor E. ligand-gated ion channel
What is the structure that holds the chromatids together?
A) centromere B) chromatin C) chromosomes D) karyotype E) none of these
The process by which mitochondria are thought to have arisen during evolution is called
a. symbiosis. b. phagocytosis. c. endosymbiosis. d. autophagocytosis