1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
fenix001 [56]
3 years ago
14

Explain why the production of antibodies that attack acetylcholine receptors causes muscle

Biology
1 answer:
horrorfan [7]3 years ago
5 0

Answer:

The binding of acetylcholine to its receptor activates the muscle and causes a muscle contraction. In myasthenia gravis, antibodies (immune proteins produced by the body's immune system) block, alter, or destroy the receptors for acetylcholine at the neuromuscular junction, which prevents the muscle from contracting

You might be interested in
Carbon dioxide is read I ly soluble in water.according to the equation CO2+H2O TO H2CO3. carbonic acid (H2CO3) is a weak acid .i
Delvig [45]

Gases dissolve easily in water when they react with water.

<h3>Dissolution of a gas in water</h3>

The question is incomplete but I will discuss the dissolution of a gas in water. A gas dissolve easily in water when the gas can react with water. In this case; CO2+H2O ⇄ H2CO3.

Let us note that the dissolution of a gas in water is an exothermic process hence does not occur at elevated temperatures.

Learn more about gases:brainly.com/question/1369730

6 0
3 years ago
What is the differences between nuclear DNA and mitochondrial DNA?
oee [108]

Answer:

Believe it or not, mitochondria are their own organisms!

That’s right, they are single celled living beings that hitch a ride inside our cells for security, and in return they make our energy systems run much better than they would. This arrangement started a very long time ago, before we split from our last ancestor with plants, and long before we became multicellular. Other than this arrangement, our DNA has nothing to do with the DNA of the mitochondria (other than synergistic evolution making us more compatible with one another).

For this reason, it is easy to see how mitochondrial DNA differs from nuclear DNA.

First major difference is that we are in different kingdoms and even different super kingdoms to mitochondria (I know there are only meant to be 5 kingdoms but in biology people often use a system based off genetic differences, leading to a huge array of kingdoms that are often really distantly related). So our DNA and mitochondrial DNA share very few similarities. We both replicate our DNA using the same method and have the same base pairs, but the DNA itself says different things.

Another difference is that mitochondria generations are very fast compared to humans’, so their DNA undergoes genetic drift at a much faster rate, and changes more over time. Therefore it is much easier to locate recent changes in populations, for example the migrations out of Africa in the last 200,000 years, or the ethnic backgrounds of different African races, using mitochondrial DNA. In contrast nuclear DNA has fewer fine mutations that can be used as a map for recent events (in the last million years, say).

Mitochondria are passed down from mother to child in animals, so you will always have your mother’s mitochondrial DNA. This is why there is a mitochondrial Eve- this is the last female that is an ancestor of everyone on the planet, and therefore every human possesses direct ancestors of her mitochondria (and her nuclear DNA). In contrast we receive a 50/50 split of nuclear DNA from father and mother.

I hope this helps!

7 0
3 years ago
URGENT PLEASE
____ [38]

Answer:

Part A: Both the parents must be the carrier of the diseases that is, Cc.

Part B: one out of four or 25 percent chances are there that their offspring would have cystic fibrosis.

As cystic fibrosis is an autosomal recessive disorder, the individual needs to carry two copies of the recessive allele that is, homozygous recessive (cc).

It is stated that neither of the parents has the disorder but their offspring show the phenotype, then both the parents must be the carrier of the disorder that is, both must heterozygous (Cc).

The offspring produces by this cross can have three types of genotypes CC, Cc, cc in 1:2:1.

Thus, only one out of four would show the disease.

5 0
4 years ago
Read 2 more answers
Anyone know this answer??
Andrej [43]
That would be A. Reason being the most energy can carry the most sediment as well as collecting it along the way.

Hope this helped :)
4 0
3 years ago
Read 2 more answers
Which organelle labeled x in the diagram is found in both plant and animal cells
soldi70 [24.7K]
Can’t answer without the diagram
3 0
4 years ago
Read 2 more answers
Other questions:
  • Which of the following is NOT true about wearing jewelry when preparing or handling food a.watches and bracelets can
    10·1 answer
  • Is a vacuole found in a plant or animal cell​
    6·2 answers
  • Can someone please help me with number 11, 12, 13, 14, and 15!
    14·1 answer
  • Which most likely is a casual relationship
    13·2 answers
  • 10. The plants that form the basis of rain forests are
    13·1 answer
  • Suppose the universe were completely empt except for one object a solid sphere moving through space at a speed of 100 lms what s
    10·2 answers
  • DNA functions as a sort of recipe for the proteins that make an organism what it is and make it work. It doesn't make proteins d
    6·1 answer
  • Which of the following is the best explanation of alternation of generations?
    5·1 answer
  • What is true about cell membranes
    10·1 answer
  • What type of energy is necessary for photosynthesis to occur?
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!