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IrinaK [193]
2 years ago
8

What is difference between plasma cells and memory cells, and how do they prevent you becoming ill??

Biology
1 answer:
Stolb23 [73]2 years ago
5 0
The difference between them is that they are active in fighting infection. Plasma cells are active in defense during the first exposure to invaders like viruses or bacteria producing antibodies. Memory cells last longer and make a copy of the invaders. This allows an extremely rapid defense later in case of a second exposure.
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Which of the following is an example of an X-linked recessive disorder?
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An example for X-linked recessive disorder is (C). Color Blindness 
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How would you distinguish pseudostratified columnar epithelium from all other tissues?.
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Psuedo  functions mostly absorption and filteration processes.

<h3>What is the advantage of psuedostratified epithelium? </h3>

The lungs are shielded from these irritants by the existence of pseudostratified columnar epithelium in the upper respiratory tract, which is made up of the nose, trachea, and bronchi. To capture particles and stop them from moving farther down the respiratory passages, the epithelium's goblet cells release mucus.

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8 0
11 months ago
Paneth cells ________. A. are absorptive cells in the small intestine B. secrete enzymes that kill bacteria C. are located next
dedylja [7]

Answer:  B. secrete enzymes that kill bacteria

Explanation:

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8 0
3 years ago
Name two types of nucleus found in paramecium? ​
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Answer:

micronucleus and macronucleus

4 0
3 years ago
Read 2 more answers
Help please! DNA Assignment
vovangra [49]

Answer:

DNA Replication:

Replicate the following strand of DNA:

Original DNA: A T G A A C CA T T C A G T A T G G

Complementary DNA:

Remember that the complimentary base pairs in DNA are Adenine-Thymine and Guanine-Cytosine, or A-T and G-C. This means that if the original sequence is:

A T G A A C C A T T C A G T A T G G

Then the compliment is (replace with the opposite base pairs):

T A C T T G G T A A G T C A T A C C

Transcription:

Transcribe the DNA to make an mRNA molecule

COMPLIMENTARY DNA:

mRNA Molecule:

So if our complimentary DNA (antisense stand) is T A C T T G G T A A G T C A T A C C then to transcribe, we basically create another complimentary strand, but for mRNA, we use Uracil instead of Thymine:

A U G A A C C A U U C A G U A U G G  

Translation:

Translate the mRNA into the corresponding amino acids.

mRNA MOLECULE:

AMINO ACID:

Using the DNA sequence provided, determine the amino acids.

Next, take each codon (3-base set) to the table and record the corresponding protein:

A U G = Methionine (start)

A A C = Asparagine

C A U = Histidine

U C A = Serine

G U A = Valine

U G G = Tryptophan

ORIGINAL DNA: A T G G G T C T A G C G A A A G A T

Complementary DNA:

mRNA DNA Molecule:

Amino Acid:

And we do it all again:

A T G G G T C T A G C G A A A G A T = original DNA

T A C C C A G A T C G C T T T C T A = complementry DNA

A U G G G U C U A G C G A A A G A U = mRNA

A U G = Methionine (start)

G G U = Glysine

C U A = Leucine

G C G = Alanine

A A A = Lysine

G A U = Aspartate

Explanation:

4 0
2 years ago
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