In the creation of a DNA profile, what type of DNA is used?
A. Microsatellites D. Transposons
B. Short tandem repeats E. Fragment length polymorphisms
C. Introns
B
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Which of the following is not true of nucleic acid and protein structure?
A. Nucleotides are connected through phosphodiester bonds. B. Both proteins and nucleic acids are unbranched polymers. C. When several nucleic acids are joined together, a polypeptide is formed. D. The chemical composition of a nucleic acid helps determine its structure. E. The chemical composition of a protein helps determine its structure.
Which of the following do methanogens not use to form methane?
A. Phosphate B. Acetate C. Formate D. Carbon dioxide
Holoprosencephaly is a highly variable condition in mammals, including humans. Its effects range from an absence of brain areas, mid-face disorders, and cyclopia to slight dental abnormalities. One form, HPE3, is caused by Shh mutations
Familial cases are inherited as dominants. Which of the following do you expect? A) HPE3 is actually a multigene complex. B) Each type of malformation is due to a different HPE3 allele. C) HPE3 expression is modified by genetic background. D) HPE3 individuals also share a common environmental exposure. E) All mutations in Shh that result in HPE3 are due to frameshifts.
The ________ mechanism explains the movement of water and minerals through xylem
A) cohesion-tension B) pressure-flow C) bulk-flow D) assisted diffusion E) translocation