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kodGreya [7K]
3 years ago
8

What purpose does the alcohol serve in this lab? Why is this an important step?

Biology
1 answer:
Juli2301 [7.4K]3 years ago
8 0

Explanation:

The role of alcohol in DNA extraction is to precipitate DNA into a visible form. Also, it's used in DNA washing and storing

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Newton’s Laws
Katarina [22]

Answer:

Newton’s first law (i.e about inertia) is best shown in this example.

Explanation:

  • Newton's first law states that every object continues in its state either motion or rest until it is acted upon by any other external force.
  • As the student is in motion when he/ she hits the patch of ice. as no external force is applied, he/she continues the motion by sliding over the ice due to inertia.
  • Until the friction and other resistance force balances the motion he/she will not stop sliding.
5 0
4 years ago
A piece of iron is heated and then cooled by dropping it in water. The heat lost by the piece would be higher if
Svetllana [295]

Answer:

c

Explanation:

7 0
4 years ago
\ which of the following places would an animal husbandry worker NOT find a job?
romanna [79]
I think the answer to this is C.
4 0
3 years ago
Read 2 more answers
What is anabolism? Give an example. What is catabolism also give an example
Oksana_A [137]

Answer:

Anabolism is the synthesis of complex molecules in living organisms from simpler ones together with the storage of energy.

Examples of anabolism: bone growth and mineralization, and muscle mass build-up.

Catabolism: the breakdown of complex molecules in living organisms to form simpler ones, together with the release of energy.

Examples of Catabolism: glycolysis, the citric acid cycle, the breakdown of muscle protein in order to use amino acids as substrates for gluconeogenesis, the breakdown of fat in adipose tissue to fatty acids, and oxidative deamination of neurotransmitters by monoamine oxidase.

7 0
4 years ago
Cross a person who does not have freckles and is heterozygous for dimples with a person who has
Alja [10]

Answer:

1. 1/2

2. 1/2

3. 1/4

Explanation:

Let the allele for freckles be A or a while that of dimples be B or b.

A person without freckles but heterozygous for dimples = aaBb

A person who has freckles (whose mother has no freckles) but no dimples = Aabb

      aaBb    x    Aabb

Offspring

4 AaBb - freckled and dimpled

4 Aabb - freckled and non dimpled

4 aaBb - non freckled and dimpled

4 aabb - non freckled and non dimpled

1. <em>Probability that the parents will have a dimpled child</em> = 8/16 or 1/2

2. <em>Probability that they will have a child with freckles</em> = 8/16 or 1/2

3. <em>Probability that they will have a child with freckles and dimples</em> = 4/16 or 1/4

<u>See the attached image for the Punnet's square analysis of the cross</u>

4 0
3 years ago
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