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mr_godi [17]
1 year ago
13

The presence of ________ dramatically increases the speed at which an action potential moves along an axon.

Biology
1 answer:
wlad13 [49]1 year ago
8 0

Answer:

Myelin

Explanation:

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Where is the mRNA made?​
Arlecino [84]

Answer:  mRNA is made in the nucleus

Explanation:

3 0
3 years ago
small group of 100 people decide to isolate themselves from the world and move to a small and remote deserted island. Out of thi
irina [24]

Answer:

Frequency of p = 0.684

Frequency of p = 0.316

Number of individuals with homozygous dominant (AA) = 47

Number of individuals with heterozygous (Aa)= 43

Number of individuals with homozygous recessive (aa) = 10

Explanation:

Out of 100 people, 10 have albino skin (aa)

So, the frequency of homozygous recessive individuals (q^{2}) is \frac{10}{100} = 0.1

Now, q will be

= \sqrt{q^{2} } = \sqrt{0.1} \\= 0.316

As per Hardy Weinberg's equation -

p + q = 1

Substituting the value of q in above equation, we get -

p + 0.316 = 1p = 1 -0.316\\p = 0.684

Now the frequency of homozygous dominant (AA) will be

p^{2} = 0.684^{2} \\= 0.467

Hence, out of 100 people 0.467 * 100 = 46.7 or 47 people are homozygous dominant (AA)

Like wise out of 100 people 0.1 * 100 = 10 people are homozygous recessive (aa)

As per As per Hardy Weinberg's equation-

p^{2} + q^{2} + 2pq = 1\\

Substituting the values in above equation, we get -

0.467 + 0.316 + 2pq = 1\\2pq = 1 -( 0.467+ 0.1)\\2pq = 0.433

So, out of 100 people 0.433 * 100 = 43.3 or 43 people are heterozygous (Aa)

7 0
3 years ago
What is the role of DNA polymerase enzymes in replication?
IrinaK [193]

Answer:

A

Explanation:

the function of DNA polymerase is to unzip the double helix structure of DNA by breaking down the weak hydrogen bond

4 0
3 years ago
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The difference in heat distribution between the poles and the equator is due to Earth’s
kkurt [141]
The axis of the earth is tilted (ANSWER IS C). The equator is heated more than other areas because the sun's rays hit it directly.
As you move north or south of the equator, they fall slantingly or obliquely.
When summer is in the south and vice versa, the heat also changes with the earth's rotation.
The tropic of Capricorn and the tropic of Cancer alternately get direct sunlight.
Due to the uneven heating of the earth, wind and ocean currents are created, supporting life.
6 0
1 year ago
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BRAINLIEST. Do fish lay eggs?
sladkih [1.3K]

Answer:

yes

Explanation:

fishes lay thousands of eggs at one time in fact!!!

4 0
3 years ago
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