The most basic reason that cells are stained is to enhance visualization of the cell or certain cellular components under a microscope. Cells may also be stained to highlight metabolic processes or to differentiate between live and dead cells in a sample.
This is false. The
Enzymes are proteins that speed up the rate of chemical reactions in the cell
without requiring high temperature. Antibodies are proteins which react to
alien or unknown organisms that enter our body like bacteria and viruses.
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A donor offspring is the donation of sperm
Answer: Missense mutation
Explanation:
Missense mutation is a type of point mutation where a single nucleotide is changed to cause substitution of a different amino acid. This in turns render the resulting protein non-functional.
In the case of sickle-cell disease, the sixth amino acid in the gene sequence, glutamate (GAG) is substituted with valine (GUA), due to Adenine nucleotide changed to Uracil nucleotide. Thus, missense mutation has occurred
Answer:
The options are
A. Delta
B. Watershed
C. River
D. Lake
The CORRECT ANSWER IS A
A. Delta
Explanation:
Delta fan is a low lying vegetation that consists majorly of stream –the river accumulates borne sediments at its mouth. It occurs when a river flows to a body of standing water, taking with it soil and minerals as it flows into the body of standing water to form a fan shape or triangle as seen in the attached image.
