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3 years ago

How would gene expression be affected if there was an error in transcription (writing instructions)?

1 answer:

4 0

Gene expression is where the mRNA is made. If there's an error in transcribing the DNA into mRNA there could be a major effect on consequent gene expression if:

1. the original gene is involved in gene expression itself (e.g. the RNA polymerase)...if it's not made correctly you would have serious future problems.

2. if the original gene is for a protein involved in further gene expression (e.g. transcription factor/regulator) - if made incorrectly it may not be there to properly control gene expression so you could get other genes expressed when they shouldn't be, or not expressed when they should be.

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What weight of Tris-HCL (MW=121) is required to prepare 2L of a 15% w/v solution?

podryga [215]

Explanation:

Percentage w/v means that weight of solute present in 100 ml of a solution. Hence, 15% w/v means that 15 gram of solute per 100 ml of solution.

Hence, for 2 L (or 2000 mL) preparation the amount of mass will be calculated as follows.

$\frac{15 g}{100 ml} \times 2000 ml$

= 300 g

Thus, we can conclude that weight of Tris-HCL required is 300 g.

7 0

4 years ago

What is the scientific definition of speed?

MAXImum [283]

In physic speed is defined to as scalar quantity which is defined to as the rate at which an object covers object. The speed of an object is the magnitude of its velocity. spend has no direction and is measured how a object move relative to a reference point.

6 0

3 years ago

If the intesnsity of light being deceted by light it will make the eye close . This is an example of a behavioral response that

Nezavi [6.7K]

It needs waves and photons

4 0

4 years ago

30% of B-A=18% OF B+A THEN A:B?

dlinn [17]

Answer:

1:4

Explanation:

30%= $\frac{30}{100}$

18%= $\frac{18}{100}$

Rewrite the given information:

$\frac{30}{100} (B - A) = \frac{18}{100}(B + A)$

Multiply by 100 throughout:

30(B -A)= 18(B+A)

Divide by 6 throughout,

5(B -A)= 3(B +A)

Expand

5B -5A= 3B +3A

Bring A terms to 1 side and B terms to another:

5B -3B= 5A +3A

Simplify

2B= 8A

Divide by 2 throughout:

B= 4A

Now, we have to find the ratio of A to B.

B= 4A

Divide by 4 throughout:

A = $= \frac{1}{4} B$

Divide by B on both sides:

$\frac{A}{B} = \frac{1}{4}$

Thus, A:B= 1:4

4 0

3 years ago

If I study light and dark peppered moths in light and dark environments what would be the test variable and the outcome variable

Setler [38]

Answer:

i could be wrong im sorry but i think the test variable would be the light and dark environments and the outcome would be if they survived.

Explanation:

7 0

3 years ago