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Vilka [71]
3 years ago
12

Choose all that apply.

Biology
1 answer:
GalinKa [24]3 years ago
6 0
The 1st, 2nd, and 3rd are true.
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I need help with 4 & 5 ASAP please
vichka [17]
One option is that the samples run through gel electrophoresis is too small to be recognized (shorter strands of DNA travel further through the gel and larger strands travel shorter). The other option in that the restriction enzyme did not cut the DNA in the proper spot or there was a mutation in the bases that allowed for a mistake in the cutting; that is why there are 800 base pairs in one sample (that's a lot) An example of a mutation is that lets say the restriction enzyme was supposed to cut at the second G in GGACC. But if that G was turned into an A, then the restriction enzyme wouldn't cut there.

For number 5, you might have 800 because of the restriction enzyme cutting it wrong, a mutation that allowed for the cutting to not take place, or a fault in the sample taking.

I am an AP Biology student right now in Wisconsin. I just finished that worksheet this morning :) anymore questions just hit me up
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Complete the table of the following element.
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It has11 protons and neutrons atomic number=11 mass=22

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Which of the following statements about manual Sanger sequencing is true? View Available Hint(s) Which of the following statemen
Fed [463]

Answer:

One sequencing reaction is performed

Explanation:

The manual Sanger sequencing technique is based on the termination of DNA synthesis by the addition of a ddNTP, which impairs the full elongation of the molecule. Originally, you would perform four parallel reaction, one for each type of ddNTP (A, G, T, C). So in each reaction you would get sequences of different lengths, all finished with the ddNTP you added in that tube.

By running an electrophoresis for nucleotides, using a gel with enough resolution to separate the sequences by on base pair (bp). If you run each of the reaction mixture in a different rail, you should get fragments of the lengths corresponding to all the positions the nucleotide you added as a ddNTP occupy in the sequence.

Also, as the fragments are separated based on their molecular weight, so smaller ones migrate further in the gel. That means the gel should be read from bottom to top (note that the smaller fragments were terminated earlier than the larger ones).

For example, if in the rail of ddATP, you get a fragment of four bp, that means the fourth nucleotide of the sequence it's an A.

Per each reaction, only one sequence can be sequenced, otherwise it would be impossible to know which fragments correspond to the different sequences.

This method doesn't need any kind of dye to be used on the different ddNTPs as long as they are added in separate reactions.  

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3 years ago
Which statement best explains the process occurring in step 4 of the life cycle ?
MA_775_DIABLO [31]

Answer:

d (pls give brainliest)

Explanation:

5 0
2 years ago
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