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3 years ago

Explain what is “bottleneck” and why genetic drift is more powerful in small populations.

Biology

2 answers:

Yuliya22 [10]3 years ago

4 0

Answer:

because more is being forced through

Explanation:

il63 [147K]3 years ago

3 0

Answer:

A bottleneck in genetics is an event that kills off or isolates a large portion of the population.

Explanation:

The more individuals in a population, the greater the genetic diversity. A genetic bottleneck happens when the number of individuals in a population gets greatly reduced. This happens as a result of random chance. For example, a storm might come through and knock down a bunch of trees. Birds that live in the trees may get harmed and those that survive now have to find a new home, so they migrate to other areas leaving behind a small population. This is important because the fewer individuals there are, the less genetic diversity and therefore, the less ability of the population to adapt. If you have lots of different genes available and a new disease arises in the population, it's more likely that some individuals will survive. If you only have a few genes available, it is less likely any individuals will survive. This can lead to really quick adaptation and evolution of a species.

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A typical human cell is approximately 10.00 10.00 μm in diameter and enclosed by a membrane that is 8.000 8.000 nm thick. What i

fredd [130]

Answer:

$V_{cell =$ 526.12 μm³

Explanation:

Given that;

A typical human cell is approximately 10.00 μm in diameter &

enclosed by a membrane that is 8.000 nm thick.

What is the volume of the cell including the membrane?

First, let's determine the radius of the human cell=

= $\frac{1}{2}*d$

= $\frac{1}{2}*10$

= 5 μm

Now, the radius of the cell including the membrane

= 5 μm + 8.000 nm

= 5 μm + 0.008 μm

= 5.008 μm

The volume of the cell including the membrane is given by the formula:

$V_{cell]= \frac{4}{3} *\pi *(r_{cell})^3 um^3$

$V_{cell = \frac{4}{3}*3.142*(5.008)^3um^3$

$V_{cell =$ 526.1160731 μm³

$V_{cell =$ 526.12 μm³

3 0

3 years ago

Which vessel takes oxygenated blood from the left ventricle to the rest of the body?

eduard

Answer:

Aorta

Explanation:

7 0

3 years ago

Who challenged the idea that insects appeared spontaneously in decomposing meat?

ladessa [460]

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Oxygen unloading occurs at the _________________________ This process causes a(n) _________________ in the oxygen partial pressu

Papessa [141]

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Once a virus has invaded a host cell, the host cell will most likely be destroyed as a result of ___________.

olga55 [171]

I believe the best answer would be B.)

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3 years ago