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3 years ago

The correct order for procedures profiling DNA is

Biology

1 answer:

tino4ka555 [31]3 years ago

8 0

Answer:

Explanation:

First, you need to isolate the DNA from the subjects sample. Second, you need to amplify that DNA with PCR in order to be able to see enough DNA during gel electrophoresis at the end. Third, restriction enzymes are used in order to cut the DNA at specific sites. Fourth, you separate these small fragments using gel electrophoresis. The gel will give you a visual indication of all the fragments present in the subjects sample and thus help you profile the subjects DNA.

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Cells must use energy to move a substance against a concentration gradient i.e., from a compartment with a low concentration of

garik1379 [7]

Answer:

Transport of sodium ions out of the cell

Transport of potassium into the cells

Transport of calcium ions out of cell

Transport of calcium ions OUT OF the cytoplasm of a cell and INTO an organelle that has a high concentration of calcium ions.

Explanation:

In general the concentration of sodium ion is higher outside the cell in the extracellular fluid and the concentration of potassium ion is higher inside the cell.

During an active transport, a cell uses energy to move molecules against the gradient as a part of primary active transport. In the secondary active transport, the molecules move as per the electrochemical gradient established by the primary active transport.

In primary active transport, sodium ion moves out of the cell and potassium ion moves into the cell through the assistance of sodium potassium pump. In order to maintain the stability, calcium ion from the sarcoplasmic reticulum is pumped out of the cell

Hence , the correct answers are

Transport of sodium ions out of the cell

Transport of potassium into the cells

Transport of calcium ions out of cell

Transport of calcium ions OUT OF the cytoplasm of a cell and INTO an organelle that has a high concentration of calcium ions.

8 0

4 years ago

Which statements accurately describe the roles of water on Earth? Check all that apply.

Rashid [163]

Answer:C. It carries cold water from the equator to the poles.

D. It wears away rock and soil.

E. It reflects sunlight that hits the oceans.

(hope this helps)

6 0

3 years ago

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Trees play an important role in the carbon cycle because

MariettaO [177]

Forests exchange large amounts of CO2 and other gases with the atmosphere and store carbon, in various forms, in trees and soils. ... Much of the CO2 in the air above a forest is taken in by trees through the process of photosynthesis,where it becomes one of the building blocks fortree growth or energy for life. (i hope this can help you ):)

4 0

4 years ago

30 POINTS! PLEASE ANSWER ASAP!

Dafna11 [192]

A.)Scientists look for fossils that could be common ancestors on the different continents, showing that the common ancestor once existed on one or more

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3 years ago

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Cual es la Materia prima de la duplicación o réplicacion?

algol13

Answer:

pionts

Explanation:

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3 years ago