Match the cytoskeletal filament that is most closely associated with each of the following structures. Responses may be used multiple times or not at all
____ desmosomes. a. microtubule
____ adherens junction b. intermediate filament
____ axonemes. c. microfilament
____ lamellipodium
What will be an ideal response?
b, c, a, c
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How are the X and Y chromosomes different?
a. only females have a Y b. only one is an autosome c. the X is smaller than the Y d. the Y carries fewer genes than the X
Which of the following provides taxonomic information that includes the information obtained in the others listed?
A) nucleic acid hybridization B) nucleic acid-base composition C) amino acid sequencing D) biochemical tests E) cladogram
What is the expression pattern of dominant-negative mutations in petite strains of yeast?
A) Expression of wild-type mitochondria is enhanced. B) Mitochondrial membranes become hyperpolarized. C) Expression of mutant mitochondria resembles expression of wild-type mitochondria. D) The function of wild-type mitochondria is suppressed. E) Mitochondria show enhanced capacity of oxidative phosphorylation.
A normal heart is fully repolarized at -60mV. Using the diagram, describe what has occurred in this heart.