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hjlf
3 years ago
8

Which disease is spread by mosquitoes?

Biology
1 answer:
Zolol [24]3 years ago
5 0

Answer:

D) dengue fever

but answer may vary

Explanation:

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Why does autum start in different months of the year in North America and South America?
IgorC [24]

Answer:

La fecha de inicio del otoño varía según el clima, la tradición y la cultura, pero cuando es otoño en el hemisferio norte, es primavera en el hemisferio sur, y viceversa.

Explanation:

4 0
2 years ago
A virus's ability to infect an animal cell depends primarily upon the
Lisa [10]
A virus's ability to infect an animal cell depends primarily upon the "<span>presence of receptor sites on the cell membrane"

Hope this helps!</span>
3 0
3 years ago
Explain why serine proteases do not catalyze hydrolysis if the amino acid at the hydrolysis site is a D-amino acid. Trypsin, for
kotykmax [81]

Answer:

Explanation:

A protease is an enzyme that catalyzes the hydrolysis of the peptide bonds that tie polypeptide chains together, releasing individual amino acid subunits. The L and D nomenclature for amino acids defines the structure of the glyceraldehyde isomer through which the amino acid can be produced.

SEE BELOW FOR THE APPROPRIATE STRUCTURES.

We need to figure out why swine proteases hydrolyze L-amino acids but not D-amino acids in any way. we know that enzymatic catalysts act as polypeptides if you can recall. They must retain a very precise three-dimensional structure for a catalytic activity to occur. Substrates that do not quite match the required configuration at the active site will not be reacted to — this is a "lock and key" style.

The present exercise may be explained by the fact that the configuration and structure of D-amino acids prevent them from binding properly to the active site of the protease enzyme. Perhaps they're pointed in the wrong direction, or perhaps there happens to be missing electrical interaction that's needed to keep the substrate in position.

Nonetheless, L-amino acids, on the other hand, seem to have the right configurational aspects in the active site and are hydrolyzed.

5 0
2 years ago
What is the function of the plasmid in a prokaryotic cell?
OverLord2011 [107]
I got to tell u but it’s b
8 0
2 years ago
Read 2 more answers
Select the correct answer.
Oduvanchick [21]
The answer is C.

The man’s genotype must be AB. The woman’s genotype can be either BB or BO as both correspond to a blood type (which is a phenotype) of B.

Each parent passes on one allele. The man can contribute A or B and the woman can contribute B or O.

The possible genotype combinations are therefore AB, AO, BB, and BO. These correspond to the phenotypes AB, A, B, and B.
4 0
3 years ago
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