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
aleksandrvk [35]
4 years ago
14

Why are surface antigens on sperm cells not recognized as “self,” and why do they require a blood-testis barrier to prevent anti

body formation?
Biology
1 answer:
qaws [65]4 years ago
6 0

Answer: Sperm cells are recognised as foreign cells by the immune system and requires blood testis barrier to prevent antibody formation.

Explanation:

Shortly after birth, the immune system of an individual starts to recognize the surface antigens of its body cells as 'self' and avoids forming an antibody against it. Spermatozoa (sperm cells) are formed at puberty, between the age of 10 and 14. Hence, the body immune system will recognise the antigen on the sperm cells as 'non-self' and stimulate antibodies against it. This is prevented by the blood testis barrier.

The blood testis barrier which are formed from the Sertoli cells at the seminiferous tubules helps in the isolation of the sperm cells and protects it from immune surveillance. This barrier also prevents sperm cells from coming in contact with blood.

You might be interested in
(APEX) How does groundwater form?
Leto [7]

C. Water seeps into spaces between rocks.

7 0
3 years ago
Read 2 more answers
How is oogenesis different from spermatogenesis?
Alona [7]
Just like spermatogenesis<span>, </span>oogenesis<span> involves the formation of haploid cells from an original diploid cell, called a primary oocyte, through meiosis. The female ovaries contain the primary oocytes. There are two major differences between the male and female production of gametes.</span>
5 0
4 years ago
Which phrase defines a law?
Orlov [11]

Question: Which phrase defines a law?

A. a possible explanation or answer to a scientific question that is based on prior knowledge or research and is testable

B.  A statement of fact that is generally accepted to be true and universal because it has always been observed to be true.

C. a hypothesis or group of related hypotheses that can be accepted as true based on repeated experimentation with similar results

Answer:

Correct answer: B). A statement of fact that is generally accepted to be true and universal because it has always been observed to be true.

Explanation:

A scientific law may be defined as the something that appears to be true and is universally applicable. Scientific laws do not explain why the observed events happen, but it only states that the event occurs in the same way over and over. Example of scientific law is a law of gravity. Gravity is always there and it always works in the same manner. Other examples include newton's law of motion, which states how the things move.

5 0
3 years ago
How does kinetic energy affect a popsicle freezing as it changes its state of matter:
VMariaS [17]

As ice melts into water, kinetic energy is being added to the particles. This causes them to be 'excited' and they break the bonds that hold them together as a solid, resulting in a change of state: solid -liquid.

3 0
3 years ago
Podocytes are also called<br> 1 point
NNADVOKAT [17]

Answer:

Visceral epithelial cells

Explanation:

Hope this helps!!

4 0
3 years ago
Other questions:
  • What is one effects of malnutrition on the body's defense system?
    9·1 answer
  • An unfavorable response to prescribed medical treatment, such as severe burns resulting from radiation therapy. is known as
    5·2 answers
  • If brown eye color is a dominant trait and blue eye color is a recessive trust what can be determined about the eye color
    6·2 answers
  • Are grapes abiotic or biotic
    14·1 answer
  • Sensory receptors adjust their response rates on the basis of the average amount of stimuli received, resulting in _____.
    5·1 answer
  • There are two main ways in which molecules are transported into and out of cells, active transport and passive transport. Which
    7·2 answers
  • 6. Inside each stinging cell of an anemone is a coiled thread with a barb at the
    15·1 answer
  • Three living species X, Y, and Z share a common ancestor T, as do extinct species U and V. A grouping that consists of species T
    8·1 answer
  • Q.4 Which type of muscle is found in your digestive system?
    6·1 answer
  • I WILL GIVE BRAINLIEST
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!