Choose the statement that best describes the role of restriction enzymes in DNA profiling.
Restriction enzymes are used to replicate specific sequences of DNA.
Restriction enzymes are used to cut DNA at specific locations.
Restriction enzymes are used to join different segments of DNA.
Restriction enzymes are used to sequence long stretches of DNA.
Restriction enzymes are used to purify DNA.
Restriction enzymes are used to cut DNA at specific locations.
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You have a DNA sequence of 1600 bp. To characterize it, you decide to make a restriction map. Cutting with the first enzyme, you show by electrophoresis that the fragments produced are 400 and 1200 bp, respectively
After using the second enzyme, you recover 700-bp and 900-bp fragments. After treatment with both enzymes, fragments were 300, 400, and 900 bp. Which is the correct map? A) -900 ------/400--/3--- B) -400/--900-----/300 --- C) -300-/--400--/--900---- D) -400-/300-/---900----- E) -400-/-100/--300--/900
K strategists typically produce large numbers of offspring. Indicate whether the statement is true or false
examples of Homologous structures
What will be an ideal response?
Answer the following statement(s) true (T) or false (F)
1. Animals with pentaradial symmetry have 5 planes of symmetry. 2. All mammals have hair, mammary glands, and a placenta. 3. Closing the stomata for an extended period of time would lead to an increase in G3P in the mesophyll cells. 4. If the soil around a plant is treated with a fungicide, the plant may experience a decline in DNA synthesis. 5. Cavitation would have no effect on translocation.