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Ugo [173]
3 years ago
12

If deletion of a control element causes a decrease in gene expression, what must be the normal role of that control element?

Biology
1 answer:
vampirchik [111]3 years ago
7 0

Answer: i think the answer is b. To activate gene expression; the level of gene expression increases because repressors are not able to bind to the enhancer without the control element.

Explanation:

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4 0
3 years ago
A student needs to prepare 250 mL of a 0.550 M aqueous solution of sucrose, C 12 H 22 O 11 ( aq ) , which is used frequently in
Grace [21]

Answer:

Dissolve 47.025 grams of sucrose in enough water to produce 250 ml of solution.

Explanation:

You need to prepare 250. mL of a 0.550 M aqueous solution of sucrose, C12H22O11 (aq),

which is used frequently in biological experiments.

Based on your answer above, what is the value of x?

Solution:

A 0.550 M aqueous solution contains 0.550 mole of sucrose per liter of solution.

250 ml = 0.250 liter

Thus a 0.250 liter of a 0.550 M aqueous solution of sucrose contains 0.250 * 0.550 = 0.1375 mole of sucrose

Recall:

Mass = number of moles * mass of 1 mole

mass of 1 mole of C12H22O11

= 12(12) + 1(22) + 16(11)

= 144 + 22 + 176

= 342 grams

Mass = 0.1375 * 342 = 47.025 grams of sucrose.

Dissolve 47.025 grams of sucrose in enough water to produce 250 ml of solution.

7 0
3 years ago
The 911 dispatchers who are specially trained to give prearrival instructions tocallers, such as how to control bleeding or how
svetlana [45]

Answer:

Correct answer is ''c'' Emergency Medical Dispatchers

Explanation:

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</span>
4 0
3 years ago
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Schach [20]
If the Calvin cycle slows down, THE RATE OF OXYGEN PRODUCTION IN PS II WILL BE REDUCED. 
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3 0
3 years ago
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