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Nataly [62]
3 years ago
15

An immune response to a tissue graft will differ from an immune response to a bacterium because ________.

Biology
1 answer:
Yuri [45]3 years ago
4 0

Answer:

Explanation:

They will differ because MHC molecules of the donor may stimulate rejection of the graft tissue as opposed to a receiver rejecting it in an immune response. That is because the MHC molecules are a group of genes that code for proteins found on the surfaces of cells that help the immune system recognize foreign substances and the surfaces are what is being transplanted during a tissue graft, meaning they are the ones that will ultimately reject the tissue graft operation.

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Which two codons in the mRNA represent the amino acid phenylalanine
Trava [24]

Answer:

UUU and UUC

Explanation:

Information that encodes certain functional products called PROTEIN are present in the DNA molecule. However, the information needs to be expressed via the processes of transcription and translation. Transcription is the synthesis of a mRNA using a DNA template.

The mRNA then undergoes translation, where it is read in a group of three nucleotides called CODON. Each CODON specifies a particular amino acid. Due to the degenerate nature of the genetic code, more than one codon can specify one amino acid.

Hence, in the case of phenylalanine amino acid, codons UUU and UUC both specify it. This means that whenever UUU and UUC are read during translation, a phenylalanine is added to the peptide chain.

8 0
3 years ago
How does the phosphorous cycle differ from the nitrogen cycle and the carbon cycle?
Varvara68 [4.7K]
The phosphorus cycle does not include an atmospheric component because phosphorus does not cycle through the atmosphere. In comparison, important processes of the carbon and nitrogen cycle occur in the atmosphere.
7 0
4 years ago
During gene expression, the dna-to-rna step is known as , while the rna-to-protein step is known as _____.
zlopas [31]

During the process of gene expression, the DNA to RNA step is known as transcription while the RNA to protein step is known as translation.

Gene expression is a process which involves the synthesis of a functional gene product by using the information present in the genes.

Transcription is a process which involves the synthesis of a RNA from the DNA. In eukaryotic cells, the transcription occurs in the nucleus whereas in prokaryotes the transcription occurs in the cytoplasm of the cell.

Translation is the process by which the RNA is converted into a protein. The translation in prokaryotic cells occurs in the cytosol of the cell whereas in eukaryotic cells, the translation occurs in the ribosomes.

To learn more about transcription here

brainly.com/question/8926797

#SPJ4

4 0
2 years ago
What is one frequent drawback of damming rivers?
Natali [406]
Floods (when it rains a lot, rivers tend to keep rising which leads to flooding )
4 0
3 years ago
Why was the introduction of the Chinese Chestnut tree harmful to native<br> species?
sveta [45]

Answer:

Cryphonectria parasitica is a parasitic fungus of chestnut trees.

Explanation:

this was caused from a great disease  that overran the country

5 0
3 years ago
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