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Nataliya [291]
3 years ago
5

Electrophoresis separates DNA fragments of different sizes, but this technique does not indicate which of the fragments contains

the DNA piece of interest. This problem is solved by Select one:
a. identifying the molecular weights of the fragments in question.
b. measuring the sizes of the bands on the gel.
c. removing the bands from the gel and hybridizing with a known strand of DNA complementary to the gene of interest.
d. knowing the isoelectric points of the piece in question.
e. None of the other answers
Biology
1 answer:
Anestetic [448]3 years ago
8 0

Answer:

Answer is C.

Explanation:

Electrophoresis describes the movement of particles in a gel, influenced by an electric charge.

It is use to separate DNA particles based on their charge and size. Some of its types are native or buffer gels, gradient gels among others.

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daser333 [38]

Answer:  1.8 m/s✔️

Explanation:

She had no force on the system which means that Sheila's bike was thrown down 1.8 m/s ✔️

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5 0
2 years ago
Read 2 more answers
How many amino acids could be specified if codons consisted of two nucleotides instead of three? What problem would this present
Greeley [361]

Answer:

This could result in a mutation.

Explanation:

A change in the DNA can affect the work of cells because it can cause a mutation; it can be a good mutation or bad. The three main mutations that occur are Insertion, Deletion and Substitution. Insertion is when DNA base(s) are added in, Deletion is when DNA base(s) are removed. Lastly, Substitution is when DNA base(s) are switched on. All of these mutations can have effects. These effects are Silent effect, Missence, and Nonsense. Silent effect is a mutation that does not change the sequence of amino acids in a protein. Missence is a mutation that causes the sequence of amino acids to change. This can cause incorrect protein folding and protein malfunction. Nonsense is a mutation that causes an early stop codon. This effect leads to a protein that is too small. Also a Frameshift can occur. Framshift is when the reading of a frameshift is moved over by one or more bases such that every subsequent amino acid changes. An example of a frameshift is THE CAT ATE THE RAT. If you insert an A at the Beginning this happens ATH ECA TAT ETH ERA T. IN Conclusion there are two Mutations that also play a role in this Point Mutation and Chromosomal Mutaion. Point Mutation is when a single DNA base is either substituted, inserted or deleted from the sequence. Chromocomal Mutation is when large pieces of a chromosome or an entire chromosome is either substituted, inserted or deleted.

7 0
2 years ago
How to explain natural selection?
loris [4]
Natural selection is basically when organisms with the best traits survive and pass on their good traits to their offspring so that they will adapt easily and survive. Organisms who do not have ‘good traits’ that help them adapt and escape predators will be killed or eaten before they reproduce.
So in the end, natural selection is a form of evolution that allows the ‘fittest’ animals to survive and reproduce, while weeding out the unfit.
8 0
3 years ago
Darwin carefully observed the finches of the Galapagos island. What he noticed was that they were similar to the mainland finche
Tresset [83]

Answer: A (colored feathers.)

Explanation: There are many birds with colors that are variously different on the Galapagos.

So, Darwin carefully observed the finches of the Galapagos island. What he noticed was that they were similar to the mainland finches, but each island finch has different colored feathers.

8 0
3 years ago
What molecules produce by the light reactions are used by the Calvin cycles
babymother [125]

Explanation:

The reactions of the Calvin cycle add carbon (from carbon dioxide in the atmosphere) to a simple five-carbon molecule called RuBP. These reactions use chemical energy from NADPH and ATP that were produced in the light reactions. The final product of the Calvin cycle is glucose.

3 0
2 years ago
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