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HACTEHA [7]
3 years ago
14

Which is in the shape of a double helix?

Biology
1 answer:
Ghella [55]3 years ago
4 0
Deoxyribonucleic Acid, or DNA is in the shape of a double helix
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Describe the structure of amino acids, including what makes amino acids different from each other.
ludmilkaskok [199]
What I know is that amino acid has side chain, amine groupe ,and  groupe of carboxyl so what make them difference is side group where the is 20 different R-group which give each individual characteristics 

7 0
3 years ago
If a cell culture has 3 x 105 cells per ml , and the culture flasks hold 75 ml of culture each and you have 12 flasks, how many
natta225 [31]

There are 27 x 10⁷ cells in total for the given conditions of cell culture.

Since it is given that the cell culture contains 3 x 10⁵ cells per ml and there are 12 culture flasks in total. It is also given that each of the culture flask holds 75 ml of culture.

Therefore, to calculate the total capacity of the flasks the total number of flasks should be multiplied with the individual capacity of a flask:-

75 x 12 = 900 ml

Now, in order to calculate the total number of cells in the given culture., the total capacity of the flasks i.e. 900 ml should be multiplied with 3 x 10⁵ cells per ml in the following manner:-

900 x (3 x 10⁵) = 2700 x 10⁵ = 27 x 10⁷ cells

To learn more about cell culture here

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4 0
1 year ago
The correct functions of your lungs contribute to the normal pH level of between 7.35 and 7.45 in your blood. If your lungs do n
3241004551 [841]

Answer:

Option B. a health problem due to the concentration of hydrogen ions (H+) being 10X higher than normal in your body is correct answer.

Explanation:

When lungs are not able to remove carbon dioxide produced by blood it results in decrease in pH of blood (blood become more acidic). This condition is called respiratory acidosis. However, body has the ability to balance ionic concentration. (See attached image for more explanation)

3 0
3 years ago
When two excitatory postsynaptic potentials (EPSPs) occur at a single synapse so rapidly in succession that the postsynaptic neu
timofeeve [1]

Answer:

B) temporal summation

Explanation:

When two EPSPs occur at the same synapse, the process called temporal summation occurs.

Temporal summation is the process of combining the postsynaptic potentials of different neurons as they are added in sequence.

When occurring in rapid succession, the final potential becomes a cohesive sum of the postsynaptic potentials. Therefore, temporal summation can be defined as the sum that creates postsynaptic potentials at different times.

8 0
3 years ago
There are several properties of water that make Earth a suitable environment for life, including water's high boiling point and
QveST [7]

Answer:

i think c

Explanation: hope it helps! ;)

6 0
3 years ago
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