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Semenov [28]
3 years ago
15

Which of these statements express a scientific theory

Biology
1 answer:
Greeley [361]3 years ago
4 0
I think A would be the answer
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In sheep, white wool is dominant over spotted wool. If 10 purebred white wool sheep (TT) are crossed with 10 spotted wool sheep
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4 offspring will have spotted wool, because there would be 10 offspring between 20 sheep, it is not half, because one side is dominate.
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4 years ago
Which statement best describes the initial process of N-linked glycosylation in the endoplasmic reticulum
butalik [34]

Answer:

The oligosaccharide is assembled on the lipid carrier at the membrane of the ER

Explanation:

N-linked glycosylation consists of the attachment of an oligosaccharide (glycan) to a nitrogen atom of the asparagine (Asn) residue in the protein. N-linked glycosylation is a key posttranslational modification (PTM) capable of controlling protein structure and function, this pathway takes place in the plasma membrane in archaea organisms and in the membranes of the endoplasmic reticulum (ER) in eukaryotic organisms. In eukaryotic cells, the N-linked glycosylation conserved pathway consists of two steps. In the first place, the oligosaccharides are assembled on a lipid carrier called dolichyl pyrophosphate localized in the endoplasmic reticulum (ER). The dolichyl-phosphatase is a hydrolase enzyme that acts on phosphoric monoester bonds. Second, the oligosaccharides are modified by specific glycosyltransferases that transfer these molecules to selected Asparagine (Asn) acceptor residues of polypeptide chains that have entered the lumen of the ER. These N-glycans are firstly assembled as a dolichol-linked precursor oligosaccharide at the cytoplasmic face of the ER.

7 0
3 years ago
If one amino acid in a protein sequence is changed, what could happen?
Mrac [35]
If one amino acid in a protein sequence is changed then normal bodily functions can change.So the answer will be B. Hope this can help a lot
4 0
3 years ago
Read 2 more answers
Population density is the number of individuals per unit area.
NemiM [27]

Answer:

Explanation:

The population density of an area is a demographic tool used to measure the number of organisms or individuals in a particular area.

 It is expressed as;

    Population density  = \frac{number of organisms}{area of the place}  

The unit is expressed as organisms/km²

An area with a high population density is often not desirable as it can lead to pressure on amenities and infrastructure.

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STALIN [3.7K]
DISPOSAL is the act of safely removing or discarding of harmful chemicals form the lab.

Disposal is defined as the systematic destruction or orderly displacement or arrangement of garbage that will minimize its negative effects on its surroundings.
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