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4 years ago

Can genetic mutations benefit an organism? Explain your answer.

2 answers:

7 0

There are several mutations that benefit the organism.A well known example is the antibiotic resistance developed by bacteria, which aid in their survival even when they are exposed to a given antibiotic. A single gene mutation in wild almond trees resulted in a variety that no longer synthesizes amygdalin.

frez [133]4 years ago

5 0

Answer:

Yes, mutations can be beneficial. The video explained that color vision in humans occurred because of a genetic mutation. These mutated genes in cone cells allow us to detect three colors of light: red, green, and blue.

Explanation:

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Nicotinic receptors a. are found at neuroeffector junctions of the parasympathetic nervous system. b. respond to epinephrine. c.

Verizon [17]

Answer:

Option C, open chemically gated sodium ion channels.

Explanation:

The nicotinic receptors are present on the muscle cell membrane. These receptors belong to the class of cholinergic receptor which binds to the acetylcholine and opens the gated channel to allow transfusion of cation through it. These actions of the receptors are stimulated by the neurotransmitter. Nicotinic receptors are very fast at acting and hence are more prevalent at the neuromuscular junction.

Hence, option C is correct

5 0

3 years ago

All of the following are TRUE except:

Phoenix [80]

Answer:

Explanation:

6 0

3 years ago

The half-life of silicon-32 is 710 years. If 70 grams is present now, how much will be present in 200 years? (Round your answer

elena-s [515]

Answer:

$57.7$ grams

Explanation:

Given -

Half life of the silicon-32 $= 710$ years

Half life means the time period required by a radioactive element to reduce its mass by half.

Radioactive decay formula is

$A = A_o*2^{\frac{-t}{h} }$

Where

A represents the amount of radioactive element after time t years

$A_0$ represents the initial amount of radioactive element

$t =$ time of decay

$h =$ half-life of the substance

Substituting the given values in above equation, we get -

$A = 70 * 2^{\frac{200}{710} \\$

$A = 57.7$ grams

6 0

4 years ago

Please help......................,

Gre4nikov [31]

Answer:

Explanation:

in all the question we have to use same technique

in 1 question

weight/force exerted by dorje(F)=1500N

total surface area of sole(A)=0.5m²

we know that,

P= $\frac{F}{A}$

or, p= $\frac{1500}{0.5}$

∴ P=3000pa

in question 2nd

pressure(P)=40 pa

force exerted by block(F)=80N

we know,

pressure(P)= $\frac{Force(F)}{Area(a)}$

area= $\frac{80}{40}$

∴area =2m

ow you can do other by yourself

4 0

4 years ago

Can we feel plate movement when there isn't an earthquake?

tatiyna

Answer:

<em><u>When the strength of the rocks at the plate boundary is exceeded, they move rapidly, "catching up" with the rest of the plates. We feel this release of energy as an earthquake. At diverging plate boundaries, earthquakes occur as the plates pull away from each other. Earthquakes are when the plates move.</u></em>

4 0

3 years ago