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polet [3.4K]
2 years ago
5

What is the role of the protein pumps?

Biology
1 answer:
levacccp [35]2 years ago
5 0

Answer:

Pumps, also called transporters, are transmembrane proteins that actively move ions and/or solutes against a concentration or electrochemical gradient across biological membranes. One moves with the concentration gradient (high to low) which powers the movement of the other against the gradient (low to high).

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How is mitochondrial DNA (mtDNA) typing used in forensic science?
Rudiy27

Explanation:

<em>Mitochondrial DNA typing</em><em> </em><em>-</em>

This method is mainly used by forensic scientist who investigate crime scenes.

It involves the use of DNA from an unknown sample to match a DNA collected from a crime scene.

This method is normally used in special scenarios.

These scenarios include:

1) When the DNA is discarded.

2) When the sample does not contain nuclear DNA.

From the description above we can now answer the question as follows:

an unknown nuclear mtDNA is matched to a nuclear mtDNA found at a crime scene.

3 0
3 years ago
Is this statement true or false? Voluntary muscles move when you want them to, while involuntary muscles move automatically. I d
atroni [7]
The voluntary muscle are controllable but the involuntary ones move automatically, so true would be your answer. Hope this helped.
8 0
3 years ago
What must nonphotosyntheic organism must do to obtain glucose
kaheart [24]
Not photosynthetic organism must do to obtain glucose
8 0
3 years ago
One function of the chromosomes in a cell is to...
Pavlova-9 [17]

Answer:

carry information from one generation to another

5 0
3 years ago
There are 100 cats in a population that follows hardy-weinberg conditions. 4 cats display a recessive white coat color. how many
mr Goodwill [35]

We know that Hardy-Weinberg conditions include the following equations:


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


where p+q=1


And where p = dominant, and q = recessive; this means that p^{2} is equal to the homozygous dominant, 2pq is the heterozygous, and q^{2} is the homozygous recessive .


So we have 100 total cats, with 4 having the recessive white coat color. That means we have a ratio of \frac{4}{100} or 0.04. Let that equal our q^{2} value.


So when we solve for q, we get:


q^{2}=0.04

q=\sqrt{0.04} =0.2


Now that we have our q value, we can use the other equation to find p:


p+q=1


p+0.2=1


p=0.8


So then we can solve for our heterozygous population:


2pq=2(0.8)(0.2)=0.32


This is the ratio of the population. So we then multiply this number by 100 to get the number of cats that are heterozygous:


0.32*100=32cats


So now we know that there are 32 heterozygous cats in the population.

8 0
3 years ago
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