A genetic disorder that results in accelerated aging is called ________
a. cri-du-chat syndrome
b. progeria
c. Turner's syndrome
d. achondroplasia
b
You might also like to view...
Rank the elements carbon, phosphorus, calcium, and iodine in order of decreasing number of valence electrons
A. CPCaI B. ICaPC C. IPCCa
When separating DNA fragments by gel electrophoresis, what is the purpose of including molecular weight markers?
A. Markers are needed to estimate the relative charges on each of the restriction fragments. B. Markers ensure that fragments having a greater molecular weight migrate at the same rate as those having a lighter molecular weight. C. Markers provide an indication as to the total number of restriction fragments on the gel. D. Markers are used as a control to determine the relative size of restriction fragments.
Gene expression is the same in both prokaryotes and eukaryotes; they are just regulated differently. What is gene expression?
a. discontinuation of the production of a gene due to an excess of the product b. a form of positive feedback where the product induces additional production of a protein c. the process of turning on a gene to produce RNA and protein d. a form of remote sensing similar to chemotaxis
Biomagnification usually happens for chemicals that
A. are not readily degraded. B. dissolve in fat. C. dissolve in water. D. are not readily degraded and dissolve in fat. E. are not readily degraded and dissolve in water.