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-BARSIC- [3]
2 years ago
5

Following a lengthy marathon, a runner feels out of breath and is experiencing muscle soreness. Explain

Biology
1 answer:
galina1969 [7]2 years ago
5 0
The runner is most likely dehydrated, not enough sleep, or heat stroke
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A group of six students has taken samples of their own cheek cells, purified the DNA, and used a restriction enzyme known to cut
prohojiy [21]

Answer:

D. The two students who have two fragments have one restriction site in this region.

Explanation:

The DNA samples from the cheek cells were subjected to digestion with a restriction enzyme. This enzyme is an endonuclease and cuts the DNA at a specific sequence only. This sequence is called a restriction site. If the restriction site is not present in the sample DNA, the restriction enzyme cannot cut it. The presence of one restriction site in the sample DNA would cut it into two DNA fragments.

Similarly, the presence of two restriction sites in each DNA molecule would obtain a total of three DNA fragments per DNA molecule.

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What is the official name of the smallest and simplest cells?
yan [13]
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8 0
3 years ago
Which of the following processes is NOT properly matched with its description?
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Answer:

External respiration: CO2 diffuses into the blood

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External respiration is also called the pulmonary gas exchange. It refers to the diffusion of O2 from the air in the alveoli of the lungs to blood in pulmonary capillaries and diffusion of CO2 in the opposite direction from the capillary blood into the alveolar air. External respiration in the lungs is responsible for oxygenation of deoxygenated blood coming from the right side of the heart. The oxygenated blood is then returned to the left side of the heart.  

4 0
3 years ago
Viruses use the enzymes of the host cell to complete protein synthesis and DNA replication. Why
Orlov [11]
Virions are composed largely of nucleic acids and protein. In order to produce more virions, the host cell must synthesize more of these parts through NA replication and protein synthesis.
8 0
2 years ago
True or False All algae reproduce only by sexual reproduction.
Kamila [148]

Answer:

False

Explanation:

algae is counted as a plant which means they are also asexual

3 0
2 years ago
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