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Allushta [10]
3 years ago
12

The meselson-stahl experiment supported which mechanism for dna replication? see section 15.2 (page 320) .

Biology
1 answer:
Arte-miy333 [17]3 years ago
6 0
Answer;
DNA replication is semi-conservative.
The meselson-stahl experiment supported the hypothesis that DNA replication is semi-conservative.

Explanation;
The Meselson-Stahl experiment
was an experiment by Meselson and Stahl that proved that the semi-conservative model by Watson and Crick was correct. 
DNA replication is semi-conservative in the sense that the new helices formed after replication contain, one new DNA strand and one old strand from the parent DNA molecule.
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Which statement regarding hemodialysis is true?
SOVA2 [1]

Answer: B. The blood is circulated out of the body for cleansing and then returned.

Explanation:

Hemodialysis is a medical therapy in which the patient's blood is taken out with the help of tubes and treated out of the body. The blood is pumped out using the blood compartment. The blood is circulated using a external filter, that is called as dialyzer. The blood get cleansed and impurities are removed and purified blood returned via circuit back to the body. This technique is used to control the blood pressure and balance of important minerals in the body that involves the potassium, sodium and calcium in the blood.

Based on the above information, option. B is the correct option.

8 0
3 years ago
NEED HELP ASAP! WILL GIVE BRAINLIEST
dem82 [27]

Hey there! :D

When we are talking about gametes, we can use a punnet square, or in this case, common knowledge. If two of the alleles for one phenotype are the same, we can infer there will only be two variations of the genotype. (because there are two dominant SS genes) We already know that "D" must be the answer. Firstly, there will be one allele for each gene, so there will always be an "S" and a "T" no "SS" or "tt" (when talking about gametes). That leaves us with B and D but there is no recessive "s" in the original genotype, so the answer must be "D".

I hope this helps!

~kaikers

7 0
3 years ago
Arrange these structures in order of lower level of organization to upper level and write the level against each structure. neur
Dominik [7]

Answer:

electron, carbon, protein, mitochondria, neurons, mass of neuron, nervous system, brain, man

3 0
3 years ago
Explain what structure A in the picture above does during DNA Replication?
Aleks04 [339]

Answer:

Where is the picture?

Explanation:

6 0
3 years ago
The process occurring at the sensory receptors that converts physical energy into coded neural activity that the nervous system
Anika [276]

Answer:

Sensory transduction

Explanation:

The sensory process involves many steps to send the signals from the receptor to the brain.

In this, the step that is involved in the conversion of the physical energy into the electrical signal at the sensory receptor  (in the given case mechanoreceptors) is known as the Sensory transduction.

When the mechanoreceptors get stimulus by the physical force, it opens the mechanical gate of the dendrites which allows the influx of the positive ions. The influx of the positive ions causes depolarization of the membrane which initiates the action potential which is then transmitted to the brain.

Thus,  Sensory transduction is the correct answer.

6 0
3 years ago
Read 2 more answers
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