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Salsk061 [2.6K]
3 years ago
13

Joy has a DNA sample from each of five unknown animals. She wants to find the molecular mass of each sample to determine which s

ample belongs to which animal. Which method should she use?
a. gel electrophoresis of the DNA samples
b. transformatiion of different E. coli strains using the DNA samples
c. paper chromatography of the DNA samples
Biology
1 answer:
murzikaleks [220]3 years ago
3 0
Answer is B since it uses strains and differential transformation to see
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AysviL [449]
I think it’s B
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The term used to describe a leukocyte count that is higher than normal is
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The term would be leukocytosis and this usually indicates that there is presence of an infection.
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What is the measured output force of a pulley system if the Mechanical Advantage is 0.48 and measured input force is 10N?
Ksenya-84 [330]

Answer:

Output force is 4.8 N

Explanation:

A pulley is a simple machine made of a grooved wheel with a rope or cable wrapped around it. Pulleys are used in the transmission of energy or motion.

The input force is also known as the applied force while the output force is the force exerted on an object by a simple machine.

The mechanical advantage of a pulley is the ratio of the output force to the input force.

Mechanical advantage = output force / input force

Substituting:

0.48 = output force / 10

Output force = 4.8 N

4 0
3 years ago
Which one of the following does not contain calories?
Ierofanga [76]
I think so the right ans is water
6 0
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In the lab on Trophic Interactions you were looking at behavior of mosquito larvae. The question being asked was: Does prey beha
Korvikt [17]

Answer:

Null hypothesis: the behavior of mosquito larvae doesn't change in the presence/absence of predators added to the tanks in Treatments 2 and 3.

Explanation:

In statistics, the null hypothesis states that there are no differences between the two variables tested in the experiment, while the alternative hypothesis uses the experimental data in order to reject the null hypothesis. In this case, the alternative hypothesis will use the data from treatments 2 and 3 to confirm that predators can modify the behavior of mosquito larvae.

6 0
3 years ago
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