Muscular dystrophy is caused by a mutation in dystrophin, and intracellular protein that binds to the cytoskeleton. Dystrophin also binds to __________, which is found in the plasma membrane of the cell and binds the extracellular matrix.
A. a cadherin
B. a gap junction
C. a tight junction
D. an actin filament
E. an integrin
E. an integrin
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What is NOT a reason why an abscessed wound might not respond to antibiotic treatment?
A. The bacteria within the abscess have ceased replicating, and many antibiotics require actively replicating cells in order to be effective. B. The blood vessels that would bring the drug to the area have been destroyed or clogged with clots, preventing the drug from getting to the microbes in the abscess. C. The bacteria in an abscess have all acquired multi-drug antibiotic resistance, so any drugs that are used will have no effect. D. The chemical composition of the pus in the abscess often inactivates antibiotic drugs, making them ineffective.
Which characteristic applies to a normal individual who is a carrier for an X-linked trait such as hemophilia?
A) The carrier is always female. B) The carrier is homozygous for the recessive condition. C) The carrier shows the recessive phenotype. D) The carrier cannot have daughters who have the allele.
The domain ____ contains plants, fungi, protists, and animals- all of which are eukaryotes.
Fill in the blank(s) with the appropriate word(s).
In Mendel's pea plants, the genes that code for flower color, seed color and seed shape are on 3 different chromosomes. For flower color, purple is dominant over white, yellow seeds are dominant over green and round seeds are dominant over wrinkled seeds. If you crossed two parents who were heterozygous for all 3 genes, how many purple flowered, round and yellow seeded plants would you expect in the offspring generation?
a) 9/64 b) 1/64 c) 27/64 d) 3/64