What is the name of a molecule with the following structure: sphingosine + a fatty acid linked to sphingosine through the sphingosine amino group?
a) sphingomyelin
b) a ceramide
c) a cerebroside
d) a ganglioside
Ans: b) a ceramide
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Striated muscle has light and dark bands. The light bands are called ________, whereas the dark bands are called ________.
A) Z lines; M lines B) H zones; M zones C) A bands; I bands D) I bands; A bands E) M lines; A bands
Any monohybrid cross consisting of one dominant and one recessive allele for the trait studied should result in a ratio of ______________ dominant to __________________ recessive.
a) three; one b) one; one c) one; two d) two; one e) one; three
Which of the following groups would be placed nearest the fungi in a phylogenetic tree based on DNA sequences?
a. cyanobacteria b. animals c. amoeba d. gymnosperms e. green algae