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a_sh-v [17]
3 years ago
11

What are three clues of physical change

Biology
1 answer:
Talja [164]3 years ago
7 0
If it help u plz pick as best tnx :)<span>1- colour   2- state    3-smell</span>
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Compared to eukaryotic cells, prokaryotic cells contain?
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The prokaryotic cells contain more DNA
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2 years ago
A scientist wants to begin making a DNA fingerprint, but she has only a very small DNA sample. What should her next step be
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For obtaining an adequate amount of DNA samples for DNA fingerprinting, polymerase chain reaction (PCR) can be used.

Polymerase chain reaction (PCR) is a technique that is used to amplify the DNA sample. The steps included in PCR are:-

1. Denaturation of the double-stranded DNA (at around 95°C)

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3. Extension or elongation of the primers by considering every single-stranded DNA as a template. This elongation is carried out by <em>Taq </em>polymerase (at around 72°C).

With each cycle of PCR, the DNA sample is increased by 2ⁿ. Here, 'n' represents the number of PCR cycles.

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Learn more about polymerase chain reaction here: -

brainly.com/question/11442887

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1 year ago
The scientific evidence that scientists use in supporting or critiquing the conclusions of experiments usually consists of
vagabundo [1.1K]

Answer:

The correct answer would be d) summarized data.

The summarized data gives the quick and easy description of all the observations obtained in the experiment.

The data can be summarized using different categories such as the total of the observations, frequency of the observations, mean value, variation et cetera.

It helps in deducing any conclusion from the observations such as the pattern of increase or decrease in the biological activity.

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Explanation:

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How have scientific advancement led to an increase in food safety
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