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FromTheMoon [43]
3 years ago
10

Why did the dna migrate to the positive pole of the electrophoresis chamber? in your response, discuss the chemical structure of

dna.
Biology
1 answer:
sp2606 [1]3 years ago
7 0
The DNA migrated to the positive pole of the electrophoresis chamber because the DNA's chemical structure is negative.

As we know, opposite attracts. Negative is attracted to positive, that is why the DNA migrated to the positive pole of the electrophoresis chamber.
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1.) You decide to clean the bathroom. You notice that the shower is covered in a strange green slime. You decide to try to get r
coldgirl [10]

Answer:

The correct answer is :

Independent Variable:  side of the shower with lemon juice

Dependent Variable:  cleanliness of shower

Control:  spray of water

Conclusion: lemonade juice have no effect on slime

Explanation:

Independent variable in any experiment is the variable that is changed or manipulated as here side of the shower that is sprayed with lemonade juice is manipulated to see if there is any effect on the cleanliness of shower.

Dependent variable is the variable that is observed or measured to check if manipulated variable or independent variable have any effect on it, like the cleanliness is measured to check if lemonade juice clean the slime of the side or not.

The control is something that remains the same to check the condition or effect that is not changed or can be compared to it. Water spray is control in this case.

The conclusion of this experiment is that there is no effect of lemonade juice on the cleanliness of slime present in the shower

6 0
3 years ago
Help! Will give brainlist
irinina [24]
Answer: B

Explanation: So air, like most other substances, expands when heated and contracts when cooled. Radiation cooling occurs when air near the ground is cooled by the Earth's surface losing heat by radiation.
6 0
3 years ago
4. If index of refraction 1 is 1.5, index of refraction 2 is 2.0, and the angle of incidence is 45 degrees, what is the angle of
motikmotik

Answer: The angle of refraction is 32°

Explanation:

By snell law, we have that:

n₁*sen(θ₁) = n₂*sen(θ₂)

Where n₁ = 1.5

n₂ = 2.0

θ₁ = 45°.

then we want to find the angle of refraction.

1.5*sin(45°) = 2*sin(x)

x = Asin(1.5*sin(45°)/2) = 32°

7 0
3 years ago
The liver is the......................
jonny [76]

The liver is the......................  gland in the body.

Answer: The liver is the<u> largest</u>

gland in the body.

7 0
2 years ago
scientist are studying a group of ant colonies in the arizona desert which question can be answered scientifically
timurjin [86]

Answer:

Scientists are studying a group of ant colonies in the Arizona desert. Which question about the ants can be answered scientifically?

Explanation:

The correct answer will be option- Does the amount of sunlight in a day affect how much food the ants eat that day.

Explanation:

A scientific method is a systematic approach to understand and explain any natural phenomenon in nature. The scientific method involves making, ask a scientific question, do background research and propose a hypothesis which could be tested to produce a real answer to the scientific questions.

In the given question, the scientist wants to study the ants in the desert through scientific method. The possible question that could be answered will be the how the amount of light can affect the quantity of food consumed by ants as the amount of food can be studied through the experiments by proposing a hypothesis.

Thus, the selected option is the correct answer.

7 0
2 years ago
Read 2 more answers
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