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arsen [322]
2 years ago
7

Triggering of the muscle action potential occurs after

Biology
1 answer:
vekshin12 years ago
4 0

Triggering of the muscle action potential occurs after Ach binds to chemically gated channels in the motor end plate membrane. Acetylcholine (Ach) is a neurotransmitter produced by nerve cells.

An action potential is an electrical signal that travels along the cell membrane as a wave.

This action potential (muscle action potential) drives the contraction of muscle fibers.

When the action potential reaches the neuromuscular junction (i.e., the motor end-plate), acetylcholine (Ach) is released into the synaptic cleft.

Subsequently, Ach can bind and open specific channels localized on the surface of the muscle cells, thereby depolarizing them and triggering muscle contraction.

Learn more in:

brainly.com/question/2158896

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Some inbred strains of the weedy plant Arabidopsis thaliana flower early in the growing season, but other strains flower at late
RoseWind [281]

Answer:

a. Let us consider that L is responsible for late and l is responsible for early. From the mentioned data, it can be concluded that allele L or late is dominant over early. By crossing plants 1 and 4 we get the expected ratio of 3: 1, which shows that it follows Mendel's law of dominant.  

b. The genotype of all the four plants are:  

1st plant = Ll

2nd plant = ll

3rd plant = LL

4th plant = Ll

c. If the plant 1 is self-fertilized then the expected progeny will be 3 (late): 1 (early).  

In case if the 2nd plant is self-fertilized, the expected progeny will be only early.  

In case if the 3rd plant is self-fertilized, the expected progeny will be only late.  

In case if the 4th plant is self-fertilized, the expected progeny will be 3 (late): 1 (early).  

3 0
3 years ago
What is the expected phenotype of F1 progeny from a cross between two homozygous recessive mutants disrupted in different genese
LenaWriter [7]

Answer:

The correct answer would be - wildtype.

Explanation:

Let assume there are four genes which are :

A-B-C-D

In mutant first, the genotype would be:---a-b-C-D

In the mutant second, the genotype would be:--A-B-c-d

If both of these genotypes are crossed with each other, the recessive genes a, b of mutant first is dominated and masked the expression by the dominant genes present in the mutant second.

Similarly, the recessive genes of the mutant second are dominated and masked expression by the dominant genes of mutant first.  This is possible only due to different genes are present in mutants.

Thus, the correct answer is - The correct answer would be - wildtype.

6 0
3 years ago
Paragraph What happened after the new government was created due today!
Goryan [66]

The United States Constitution is the world's longest continually operating written charter of governance. It was prepared in 1787, adopted in 1788, and entered into force in 1789.

The first three words of it, "We The People," indicate that the American government's goal is to serve its people.

<h3>What form of government evolved in the aftermath of the American Revolution?</h3>

The powers of the national government were specified in the Articles of Confederation following the United States' declaration of independence from Great Britain.

In order for the Constitution to be ratified by all 13 states, the participants in the Constitutional Amendment had to reach a number of agreements.

Thomas Jefferson authored the Declaration of Independence in 17 days. On July 2, 1776, Congress resolved to secede from the United Kingdom. On July 4, 1776, Congress approved the Declaration of Independence, which became known as Independence Day.

Learn more about United States Constitution refer

brainly.com/question/453546

#SPJ10

3 0
1 year ago
A picture says it!
Verizon [17]

Answer:

A

Explanation:njkdnvkjxxnalvsdnfdhfjdsshhudshuhulffdhfgjfdjgfdjhdfshjdfshjfsjhfdshjfdshjdfhjfdshjfshjskfhk,sdciusnjd du dhhd dkskd dju ehfjhjcj is cool and amazing and did not answer dis question so someone else has tp i judt used ita to prctis kdkjdjlkjkxmvlkcd safdop

8 0
3 years ago
Using Figure 1 answer the following questions: What is the probability (enter a percentage) of producing an offspring with the f
FinnZ [79.3K]

Answer:

PP = 25%

Pp = 50%

pp = 25%

Explanation:

Using punnett square, we can predict the percentage probability of genotypes.

          P      p

P      PP     Pp

p     Pp     pp

In this cross we have,

PP  = 1/4 = 25%

Pp  = 2/4 = 50%

pp  = 1/4  = 25%

We have ratio,

1 : 2 : 1

7 0
3 years ago
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