Tay-Sachs disease
a. is controlled by a simple recessive gene.
b. is a sex-linked disease more common in males.
c. occurs only in those individuals that receive two copies of a defective recessive gene.
d. is the result of the failure of chromosomes to separate so that an individual receives three
instead of two chromosomes.
e. depends on which parent passes the gene to the child.
C
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Refer to the figure above. The mRNA is smaller than the length of the DNA that codes for it because _____
A) the regulatory regions (exons) of the gene are not transcribed B) post-transcriptional modification removes the introns C) post-transcriptional modification removes the exons D) bases are added to the tail of the primary transcript
Which RNA acts as an enzyme?
a. mRNA b. rRNA c. tRNA d. mRNA and rRNA e. rRNA and tRNA
A competitive inhibitor interferes with:
A. the oxidized site of the enzyme so a substrate cannot bind B. the active site of the enzyme so a substrate cannot bind C. the reduced site of the enzyme so a substrate cannot bind D. the allosteric site of the enzyme so a substrate cannot bind E. the repressor site of the enzyme so a substrate cannot bind
The best way to determine if the environmental conditions are imposing a heat load on your body during exercise is to monitor your:
What will be an ideal response?