The ABO blood type system in humans is an example of:
a) codominance but not multiple alleles.
b) neither codominance nor multiple alleles.
c) multiple alleles but not codominance.
d) incomplete dominance.
e) multiple alleles and codominance.
Ans: e) multiple alleles and codominance.
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In principle, gene expression can be controlled at any of the steps between a gene and its ultimate functional product. For the majority of genes, however, the __________ is the most important point of control. Because this control point can ensure that no unnecessary intermediates are synthesized.
A) Replication. B) Transcription C) Translation. D) PCR.
Multiple proteins can be produced from a single gene by
A) intron shuffling. B) alternate splicing. C) chain switching. D) chromatin remodeling.
How is adaptive immunity different from innate immunity?
a. adaptive immunity is specific, while innate immunity is not. b. adaptive immunity has memory, while innate immunity does not. c. adaptive immunity is immediate, while innate immunity is not. d. adaptive immunity is specific, while innate immunity is not; adaptive immunity has memory, while innate immunity does not. e. adaptive immunity has memory, while innate immunity does not; adaptive immunity is immediate, while innate immunity is not.
________ are the long thin cells of skeletal muscles.
a. Myofibrils b. Bursa c. Sarcomeres d. Fibers e. Tendons.