DNA fingerprinting is used: *
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to provide a means of identifying identical DNA sequencdes.
as a forensics tool to provide evidence in a criminal case.
to identify genetic diseases.
to isolate fragments of DNA for sequencing.
for all of the above.
Fragments cut by most restriction enzymes have: *
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complementary double-stranded ends.
supplementary single-stranded ends.
double-stranded "sticky" ends.
complementary single-stranded ends.
supplementary double-stranded ends.
Which principle(s) allow gel electrophoresis to analyze DNA? *
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DNA is generally positively charged due to its nitrogenous bases, so an electrical field forces it to move toward the negative pole.
Gravity.
The strong positive charges from the phosphate groups in the DNA backbone cause it to migrate toward the negative pole.
Diffusion.
The strong negative charges from the phosphate groups in the DNA backbone cause it to migrate toward the positive pole.

What claim did thorne make? what evidence supported his claim?

Need will mark ! which features are created by groundwater erosion and deposition? check all that apply. a. stalagmitesb. sinkholesc. rillsd. stalactites e. gullies f. rivers

With the description of the different cell walls, membranes, and associated proteins set in the students' minds, you now need to introduce them to the idea that the cell wall can also act as a foundation to build things upon. bacterial appendages require a strong foundation that will offer the support needed to move and function in a dynamic world. for example, flagella are long, whiplike protein structures that are used by many gram-positive and gram-negative bacteria for locomotion. in order to function effectively, a flagellum must be firmly anchored to the cell wall. how will you be able to get across the idea that the peptidoglycan cell wall is strong enough to support such a mechanism? with a protein rod that passes through the cell wall and protein rings used to anchor it in the membranes, these basal bodies are the rudimentary biological motors that use atp power to spin the hook and the flagella attached to it. bacterial flagella have a biological motor that spins within the cell wall and is powered by atp. this allows the flagella to spin in a whiplike motion to propel the bacterium.