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Dominik [7]
3 years ago
11

What is the function of cell selectivity Permeable plasma membrane

Biology
1 answer:
Fynjy0 [20]3 years ago
6 0
To allow certain molecules through, while blocking the rest.
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In a hardy-weinberg population with two alleles, a and a, that are in equilibrium, the frequency of allele a is 0.2. what is the
Allushta [10]
The Hardy-Weinberg equation is as follows:
( {p + q})^{2}  = 1
{p}^{2}  +2pq +   {q}^{2}  = 1
Where:
(convert all % to decimals)

p= homozygous dominant
q= homozygous recessive
pq= heterozygous

While you did not specify whether the 0.2 frequency was for dominant or recessive, we can still figure out the answer.

Using the 1st equation, we can solve for the other dominant/recessive frequency:

1-0.2=0.8

Meaning that:

p= 0.8 & q=0.2

If the heterozygouz frequency is 2pq, then it becomes a simple "plug & chug" sort of approach.

2(0.8)(0.2)= 2(0.16)= 0.32

So, the heterozygous frequency would be:
0.32

Hope this helps!
8 0
3 years ago
The ad populum fallacy occurs when
Alex
Is a fallacy that consists of a false appeal to the authority of "everyone"; based on the assumption that a course of action should be taken or an idea should be supported because "everyone" is doing it or believes it.
8 0
3 years ago
Suppose you found a fossil of a clam shell what can you conclude about the once-living organism and how it became a fossil?
Stolb23 [73]

Answer:

Identifying the fossil is the first step. We have already identified this fossil as a clamshell. We know clam are from the sea, but if you didn't, you could conclude this from knowing where you found the fossil (likely near the beach). Discovering where it is can also lead you to a conclusion on it's arrival as a fossil, perhaps washed up on shore or buried by an animal.

Explanation:

8 0
3 years ago
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A scientist is examining a simple multicellular organism with a nucleus and
Sphinxa [80]

Answer:

The answer is protista.

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WHAT ARE THREE ORGANS THAT WORK WITH THE ESOPHAGUS
viktelen [127]

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Stomach, small intestine, and pancreas

Explanation:

hope this helps!

5 0
3 years ago
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