Answer:
A geneticist has devised a strategy to study protein translocation into the endoplasmic reticulum (ER) in yeast cells. She is interested in two different signal sequences that are thought to operate via slightly different translocation mechanisms. Using genetic engineering, she has fused the first signal sequence to a protein whose cytosolic expression is absolutely necessary for cell survival in the selective medium, but is inactive when in the ER. In the same cell, she has also fused the second signal sequence to a toxic protein whose cytosolic expression leads to cell lysis but is harmless when in the ER. Whereas wild-type cells undergo lysis upon the expression of these fusion proteins, she has been able to identify viable mutants, each of which has a loss-of-function mutation in a gene encoding a protein involved in membrane translocation. The products of these genes are probably ...
Explanation:
Involved in the transport of proteins with the first signal sequence but not the second one.
<h2>Answer:</h2>
The living cell concentration is hypertonic than outer solution hence the concentration of solutes will be higher than the solvent.
<h3>Explanation:</h3>
- In the question description it is mentioned that cell is present in the hypotonic solution than cell environment will be hypertonic.
- In the cell the solute will present in the concentrated form.
- Hence the water will move from the outer environment into sell through the osmosis.
- Osmosis is the movement of water from higher concentration to low concentration through semi permeable membrane.
- Hence the cell will swell due to water collection in cell.
A stem cell is a cell that has layers of bacteria that helps protect the water that follows through it.
I’m not entirely sure about what you’re asking but chargaff’s rule is the thing that states that the amount of each “letter” in DNA is equal to its pair. Guanine (g) pairs with cytosine (C) and the same with adenine(A) and thymine (T). I’m sorry my answer is so vague, but I hope it helps a little!
