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Strike441 [17]
3 years ago
14

The________molecules that are produced from DNA are used by the cell's​

Biology
1 answer:
Temka [501]3 years ago
7 0

Answer:

The majority of genes carried in a cell's DNA specify the amino acid sequence of proteins; the RNA molecules that are copied from these genes (which ultimately direct the synthesis of proteins) are called messenger RNA (mRNA) molecules.

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A number of marine reptiles and birds have salt glands, which have a remarkable ability to concentrate salt solutions for excret
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Answer:

A)100mL  B)50mL  C)The second option  D)Hypoosmotic Environment

Explanation:

The average Na concentration in the seas and oceans of the world is around 3,5% which mean that in 100 ml of sea water, there is around 3,5 grams of Na.

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If the average Na concentration of the salt gland's secretion were 300 mmol/L, only 50 mililiters of water would be needed to excrete the same sodium load.

The second option of secretion is hyperosmotic to seawater because the concentration is higher.

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I hope this answer helps.

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