The cargo carried by kinesin along microtubules binds to kinesin on which region?
a. Head
b. Neck
c. Coiled-coil
d. Tail
e. None of the above
Ans: d. Tail
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Place the following steps in the correct order to reflect how a plaque assay is done: _____ Plates from different dilutions are examined and plaques are counted. _____ Dilutions are mixed with the appropriate bacterial host. _____ Bacterial/sample dilution mixtures are plated on agar plates. _____ Several dilutions of sample to be assayed are prepare. _____ Plates are incubated to allow for plaque development.
Fill in the blank(s) with the appropriate word(s).
To answer questions about the genetic changes underlying speciation, scientists are now isolating and sequencing
a. sympatric genes b. allopatric genes c. neutral mutations d. deleterious mutations e. speciation genes
Scientists currently hypothesize that the first enzymes were composed of
1.DNA. 2.protein. 3.RNA. 4.lipid. 5.carbohydrates.
A sudden increase in diversity of many animal phyla was seen in the ____ period
a. cambrian b. permian c. devonian d. ediacaran e. cretaceous