Answer:
The inside of the cell has a low concentration of sodium ions, and the outside of the cell has a higher concentration of sodium ions.
Explanation:
The procedure can decrease the odds of having a child with CF by performing an in vitro fertilization procedure and screening the embryo for the CF alleles is referred to as preimplantation genetic diagnosis.
<h3>What diseases can be detected by preimplantation genetic diagnosis?</h3>
Pre-implantation genetic diagnosis (PGD) is the testing of embryos or oocytes at the pre-implantation stage for genetic defects.
It can be used to diagnose cystic fibrosis, Tay-Sachs disease, Hemophilia, etc.
Thus, the procedure can decrease the odds of having a child with CF by performing an in vitro fertilization procedure and screening the embryo for the CF alleles is referred to as preimplantation genetic diagnosis.
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<h2>
Answer: A</h2>
Explanation:
The magnifiacation doesn't change. We aren't seeing a more detail or less detail view of the cells. Thus this eliminates B & C.
There is no change in the turgidity of the cell or in the cell membrane. Thus this eliminates D.
However, B looks darker than. This is usually a sign that the cells have been stained. This was perhaps done with Methylene Blue.
