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Alekssandra [29.7K]
3 years ago
5

What is tissue rejection?

Biology
1 answer:
dimaraw [331]3 years ago
4 0

Answer: Failure of transplantation that occurs when an organism recognizes transplanted tissue as foreign, and mounts an immune response.

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In the human, the allele for brown eyes, B, is dominant over the allele for blue eye,b. Which combination of alleles shown below
DochEvi [55]
There is no “below” that you mentioned but the gene combinations with bb would only be possible for blue eyes since big B (brown eyes) is dominant over b.
For example, if you were to do a cross and the father had Bb(brown eyes) and the mother had bb (blue eyes) the result would be
Bb,Bb,bb,bb. So there would be a 50% chance of blue eyes in the case :)
Hope this helped.
6 0
2 years ago
Is a mushroom made of cells?
jekas [21]
All living things are made of cells, so yes, mushrooms are made of cells. :)
8 0
3 years ago
Read 2 more answers
why is DNA a good molecule (compared to liquid or carbohydrate) to have the instructions for protein synthesis?
alex41 [277]
A DNA or good molecule needs protein synthesis because without it it would not be able to function properly!
4 0
2 years ago
The active site of an enzyme is _____________. Group of answer choices the region of an enzyme that attaches to the product the
nata0808 [166]

Answer: The correct option is (the region of an enzyme that attaches to a substrate).

Explanation:

The anabolic and catabolic processes in a cell are directed and regulated by enzymes. An enzyme has the ability to speed up a metabolic reaction by lowering the amount of energy needed to start the reaction. Without enzymes, these processes would be extremely slow. They also arrange the reacting molecules in a manner that will cause the chemical change to take place rapidly. It does so through the following steps:

--> molecules of substrate combine with the enzyme at its active site.

--> the substrate molecules combine with enzyme molecules for a short time, forming an enzyme-substrate complex.

--> New substance ( product) is formed which leaves the active site of the enzyme thereby making it free for another reaction to take place.

In conclusion, the ACTIVE SITE of an enzyme is the region of an enzyme that attaches to a substrate allowing chemical reaction to take place.

6 0
2 years ago
GgTt pea plants can produce _____ type(s) of gametes, but a ggtt plant can produce _____ type(s) of gametes.
Kruka [31]

Answer:

4; 2

Explanation:

GgTt can produce GT, Gt, gT, or gt gametes while ggtt can only produce gt gametes.

4 0
2 years ago
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