What is a cell wall ? (Short and specific answer) PLEASE !!

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

In 6-8 sentences, explain how stream volume and speed affect the size, shape, and

ki77a [65]

Answer:

Stream volume and speed directly affects the size, shape, and flow of streams and rivers.

Explanation:

The greater volume results in larger channels and these larger channels will make the flow of stream faster.
The flow volume of different streams are related to precipitation and run-off.
The earth materials also heavily effect the flow by changing the properties of the water like increase in the mass, hardness, shape, etc.
Erosion and deposition is common in the curving type of stream.

5 0

3 years ago

When you look at the dog in visible light, can you tell which areas are hottest and coolest just by looking

Klio2033 [76]

Answer:

an x-ray won't tell you that

8 0

3 years ago

How would you test the presence of starch in leaves?

Lesechka [4]

Answer:

1. Remove a green leaf from the plant

2. Boil the leaf in boiling water stop enzymatic reaction within cells in leaf

3. Put the boiled leaf in boiling tube containing alcohol extract (ethanol) chlorophyll ethanol dissolves Lipids in cell membranes.

4. Return to leave to the hot water soften the leaf and allows penetration of iodine

5. Remove leaf and perform the iodine test

Explanation:

starch is white powdery substance consisting of glucose which is used by plants as food the percents of starch in leaves evidence enough of the process a photosynthesis being carried out in leaves as the formation of starch necessitates photosynthesis.

I hope this helps :)

4 0

4 years ago

A__________

densk [106]

Answer:

A census is a count of the population in particular areas.

Explanation:

4 0

3 years ago

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