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Mashcka [7]
3 years ago
15

While looking at a cell under a microscope, a scientist is able to see a biological molecule. This molecule is a nucleic acid wi

th double strands and contains the nitrogenous bases adenine, thymine, cytosine, and guanine. Based on this information, what conclusion can the scientist draw regarding this nucleic acid?
Biology
2 answers:
Gnom [1K]3 years ago
8 0
The nucleic acid is DNA 
mrs_skeptik [129]3 years ago
5 0

Answer:

The correct answer is - it is a DNA molecule.

Explanation:

A DNA molecule is a deoxyribose nucleic acid that is a double-stranded molecule joined together nitrogenous base pairs adenine, guanine, cytosine, and thiamine. Adenine pairs with guanine and thiamine pair with cytosine.

This nucleic acid present in the cell and can be studied under the microscope.

Thus, the correct answer is - the studied nucleic acid is a DNA molecule.

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Pain signals often have two components: an acute sensation of "first pain" which is felt almost immediately after an injury, and
o-na [289]

Answer:

This suggests that neurons that send the signals that we perceive as first pain Myelinated Tpye A-delta___, and neurons that send the signals that we perceive as second pain Unmyelinated-Type C.___.

Explanation:

Physiologically, primary afferent neurons that innervated the the touch, pain, temperature,and pressure receptors in the effectors  to input sensory signals to the spinal cord and the brain  are categorized based on their diameter, sizes, and nature of  myelination. Based on this;

<u>A-alpha has the largest diameter, myelinated, and sensitive to sensation from the muscle cells</u>

<u>A-beta are next in diameter, myelinated and sensitive to sensation  of touch.</u>

A-delta followed in diameter, and  size. They are mylinated, and sensitive to pain and temperature.

<u>C-fibres are least in diameter, they are unmyelinated, but sensitive to pain, touch and temperature.</u>

<u />

<u>Therefore, if the speed of conduction,of action  potential in a neuron depends on the diameter(thickness) and myelination of the axon(saltatory conduction)</u> :

''then, acute sensation/ first pain should be transmitted by the A-delta fibre. While the the slower/second pain should be transmitted by the slower unmyelinated - C-fibres''.

5 0
3 years ago
Help me pls (no links or get banned)
Schach [20]
I think this is the answer key.. tell if you need help read it :)

4 0
3 years ago
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Which structure best makes Bermudagrass successful in preventing soil erosion
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Bermuda grass is successful in preventing soil erosion because the roots of the Bermuda grass can grow deep and it can reach 6 feet deep more on its surface. Also when the Bermuda grass is damaged it can grow back quickly. 

7 0
3 years ago
Energy Generation in Aerobic and Anaerobic Conditions
Ira Lisetskai [31]

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And talk about the weather

But traditions I can trace against the child in your face

Won't escape my attention

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And gentle persuasion

I'm lost in admiration, could I need you this much?

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I never find out until I'm head over heels

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1 year ago
The largest amount of DNA in a plant cell is found in?
irina1246 [14]
Mitochondria is where the largest amount of dna is stored
7 0
3 years ago
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