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
ololo11 [35]
2 years ago
11

The antigen-binding sites of an antibody molecule are formed from the molecule's variable regions. why are these regions describ

ed as variable?
Biology
1 answer:
tino4ka555 [31]2 years ago
8 0

The antigen-binding sites of an antibody molecule are formed from the molecule's variable regions which are described as so because their amino acid sequences can be different on different antibodies.

The specificity of antibodies is determined by the variable regions found at their endpoints. Antibodies are specialized proteins secreted by B-cells of the immune system. They are also called immunoglobulins. They contain four polypeptide chains that comprise two heavy chains and two light chains to form a Y-shaped molecule.

The variable regions, more specifically the hypervariable regions of an antibody, have a high ratio of different amino acids with the most common amino acids provided in one place. The variable region serves as the antigen-binding site while the constant region found below the variable region is determined to invade the antigen.

Antibodies are preserved in our body to identify the antigen the next time it encounters. They send the signals to the other body parts to reject the antigen and invade it.

To know more about variable regions of antibodies, refer to the following link:

brainly.com/question/17439586
#SPJ4

You might be interested in
The table below shows part of the process of DNA replication:
svp [43]

Answer:

There will be a change in the genetic information that gets transmitted due to the mutation in the complementary strand being used as template in future DNA replication.

Explanation:

PLEASE MARK ME AS BRAINLIEST

3 0
3 years ago
Disturbances to an ecosystem, such as fires and floods, are often seen as negative. Describe a situation where
trasher [3.6K]

Answer:

A biological community in which association takes place between the organisms and their physical surroundings is termed as an ecosystem. It can also be defined as an association between the nonliving and living components found within the environment. A particular geographical region, which is specified for the species thriving within it is known as a biome.  

A branch of science, which deals with the natural procedures that comprise fire within an ecosystem and the ecological influences it imparts, the association between the biotic and the abiotic constituents of an ecosystem with the fire, and the role played by fire within an ecosystem is termed as a fire ecology.  

Different kinds of ecosystems like savanna, prairie, coniferous forests and chaparral have originated by the contribution of the fire, which plays an essential role in the renewal and vitality of the habitat. Different kind of plant species needs the assistance of fire to establish, to reproduce, or to germinate. In case, if the suppression of wildfire takes place, it will eventually result in the eradication of various plant species and the animals that rely upon them.  

4 0
3 years ago
Explain mutations and how they can cause genetic disease
nadya68 [22]
Answer:

A mutation is a change in a DNA sequence. Mutations can result from DNA copying mistakes made during cell division, exposure to ionizing radiation, exposure to chemicals
called mutagens, or infection by viruses. Germ line mutations occur in the eggs and sperm and can be passed on to offspring, while somatic mutations occur in body cells and are not passed on.

Mutation has been the source of many Hollywood movies, but it's really a simple process of a mistake made in a DNA sequence as it's being copied. Some of that's just the background noise that DNA copying is not perfect, and we should be glad of that or evolution couldn't operate. But mutation can also be induced by things like radiation or carcinogens in a way that can increase the risk of cancers or birth defects. But it's pretty simple; it's basically an induced misspelling of the DNA sequence.
That's a mutation.


When a variant alters a protein that plays a critical role in the body, it can disrupt normal development or cause a health condition. A condition caused by variants in one or more genes is called a genetic disorder. In some cases, gene variants are so severe that they prevent an embryo from surviving until birth.

5 0
3 years ago
briefly explain what happens to energy and to molecules when bonds are formed and broken in molecules of ATP and ADP ( explain a
Nikolay [14]
Hello! ATP stands for adenosine triphosphate, and ADP stands for adenosine diphosphate. The difference between the two molecules is that ATP has three phosphate group, and ADP has two phosphate groups. ATP is an unstable molecule, which means it will release energy when it becomes reduced to ADP, meaning it will break off one of its phosphate groups. Hope this helps, and let me know if you have any questions! ^-^
4 0
3 years ago
Read 2 more answers
I'LL GIVE BRAINLIEST:
ch4aika [34]

Answer:

The grasshopper doesn't have to use it circulatory system to carry gases to and from the grasshopper cells because the air that is passed through the trachea system is already close enough to get to the cells.

Explanation:

"In the grasshopper, exchange of oxygen and carbon dioxide occurs in the tracheal system. Hemolymph plays no part in the process. There is not even an oxygen-carrying pigment in insect hemolymph." - www.biology-pages.info

(Here's some extra info as well)

8 0
3 years ago
Read 2 more answers
Other questions:
  • What organelle releases energy for metabolic activity in a nerve cell
    6·1 answer
  • Based on the current understanding of this operon, which hypothesis would be useful for James to test?
    15·1 answer
  • Which cell part is a maze of folded membranes where proteins and lipids are produced
    12·1 answer
  • true/false. The pacific northwest is home to a temperate rain forest, where over 300 centimeters of rain falls yearly
    10·1 answer
  • How do you calculate the total magnification<br> from eyepiece lens and objective lens?
    5·1 answer
  • Which of the following is a trait that links modern primates into a single taxonomic group?
    15·1 answer
  • If two earthquakes have the same amplitude would they have the same magnitude? why or why not?
    13·1 answer
  • Describe the modifications that can be done on a polypeptide chain to make it a fully functional
    14·1 answer
  • Inattention is generally caused by concentration on __________.
    7·1 answer
  • a single stranded dna (oligonucleotides) can hybridize with (select one): select one: a. complementary dna b. complementary rna
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!