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
Mama L [17]
3 years ago
13

It is possible to use molecular genetic techniques to characterize the T cells found in psoriasis plaques and compare them to th

e T cells found in healthy skin. In healthy skin, T cells have a wide diversity of T cell receptors. In other words, there are many different T cell clones found in healthy tissue. In psoriasis plaques, there are fewer T cell clones, but often there are a large number of T cells representing only a small number of clones (this is called oligoclonal expansion). There are usually many more T cells in total found in psoriasis plaques relative to healthy skin. Think about the implications of this finding. What conclusion is NOT supported by these findings
Biology
1 answer:
babymother [125]3 years ago
8 0

Answer:

According to what has been investigated the option that should be supported by more scientific evidence: In psoriasis plaques, there are fewer T-cell clones, but there are often a large number of T-cells representing only a small number of clones (this is called oligoclonal expansion).

Explanation:

Oligoclonal expansion does not occur only in this pathology, it also occurs in other recurrent diseases such as multiple sclerosis, this phenomenon is widely studied and little discovered in some aspects and is mainly based on both tcd4 and tcd8 and b lymphocytes.

In this case, the presence of ltcd4 in psoriasis is very versatile and depends on the patient's immune response, which is why more scientific evidence is needed on this topic, based mostly on meta-analyzes.

You might be interested in
In what basic settings do intrusive and extrusive igneous rocks originate
Hatshy [7]
Intrusive is crystallized below the surface
<span>extrusive is when lava crystallizes on earths surface</span>
4 0
3 years ago
Read 2 more answers
Why should antibiotics be used as a last resort rather than a first line of defense against bacteria
stepan [7]
Doctors would let your body's immune system fight off a bacterial infection. If the infection gets worse, then the doctors would proscribe you with some antibiotics so it'll fight off the harmful bacteria.
6 0
3 years ago
What structures hold the air passages open in the windpipe and bronchi?
kobusy [5.1K]

<h2><em>The trachea connects the larynx to the bronchi and allows air to pass through the neck and into the thorax. The rings of cartilage making up the trachea allow it to remain open to air at all times</em></h2>
6 0
2 years ago
Read 2 more answers
What is secreted by the gastric mucous neck cells and pancreatic duct cells to neutralize stomach acid?
erik [133]

Answer:

Bio carbonate ions

Explanation:

The pancreas secrets an aqueous mixture ( water, digestive enzymes and bicarbonate ions) during digestion of food substances from the stomach into the duodenum to begin the process of absorption and assimilation.

The pancreatic duct are lined with duct cells. These are cells which secretes HCO3- ,into the aqueous mixture. This ion is basic. Therefore it  neutralizes the acidity of the  of  the chyme to  released from the stomach to enable the pancreatic enzyme to work.

The bicarbonate ions also prevent the walls of the pancreases from getting burnt by the effect if the acidity of the chyme.

3 0
3 years ago
A trihybrid cross is a cross between two individuals who are heterozygous for three genes. For example: AaBbCc x AaBbCc. Assumin
Mariulka [41]

Answer:

27:9:9:9:3:3:3:1

Explanation:

The gametes of the parental genotypes would be  

ABC, ABc, AbC, aBC, Abc, aBc, abC, abc

The cross between AaBbCc and AaBbCc will result into following offspring  (image is also attached)

        ABC        ABc           AbC   aBC         Abc     aBc abC abc

ABC AABBCC       AABBCc AABbCC   AaBBCC AABbCc AaBBCc AaBbCC AaBbCc

ABc AABBCc AABBcc AABbCc AaBBCc AaBbcc AaBBcc AaBbCc AaBbcc

AbC AABbCC AABbCc AAbbCC AaBbCC AAbbCc AaBbCc AabbCC AabbCc

aBC AaBBCC AaBBCc AaBbCC aaBBCC AaBbCc aaBBCc aaBbCC aaBbCc

Abc AABbCc AABbcc AAbbCc AaBbCc AAbbcc AaBbcc AabbCc Aabbcc

aBc AaBBCc AaBBcc AaBbCc aaBBCc AaBbcc aaBBcc aaBbCc aaBbcc

abC AaBbCC AaBbCc AabbCC aaBbCC AabbCc aaBbCc aabbCC aabbCc

abc AaBbCc AaBbcc AabbCc aaBbCc Aabbcc aaBbcc aabbCc aabbcc

The genotype ratio is 27:9:9:9:3:3:3:1

5 0
3 years ago
Other questions:
  •   A worm is living inside a cow and stealing nutrients from the cow's body, causing the cow to become malnourished. What type of
    6·2 answers
  • What term is used to describe the reuse of aluminum in old soda cans to make new products
    11·2 answers
  • Impact of acids/bases on human health. (how?)
    5·1 answer
  • Definition of condensation
    5·1 answer
  • Construction work is being carried out for a railway route passing close to a mountain slope. Why is it necessary to cover the m
    13·2 answers
  • A period in a man’s life, usually during his 70s or 80s, when testosterone decreases, causing a decrease in spermatogenesis, is
    8·1 answer
  • What do the different categories of hurricanes represent
    10·2 answers
  • Create some GREAT SCIENTIFIC game of FREEZE TAG to play in class.
    5·2 answers
  • Please read all this and and answer number 1
    7·1 answer
  • A different parent-daughter pair in the felsic ash has a half-life of 50 million years. There is 25% of this parent still remain
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!