True, the plasma membrane is selectively permeable and controls the various substances that are allowed into the cell and that are allowed to leave the cell.
Answer: Option E -- RNA Editing
Explanation:
It should be noted that, RNA editing can be defined as a molecular process via which some cells can make discrete changes to specific nucleotide sequences within an mRNA molecule after it has been generated by RNA polymerase. In addition, we have two major types of RNA editing with 1 being a C-to-U change catalyzed by cytidine deaminase that deaminates a cytidine base into a uridine base, e.g C-to-U editing is with the apolipoprotein B gene in humans. ApoB-100 is expressed in the liver and apoB-48 is expressed in the intestines. The B-100 form comprises of a CAA sequence that is edited to UAA, a stop codon, in the intestines.
The same principle apply to stereo microscopes, a 10X eye piece combined with a 4X objective lens will produce 40X magnification.
Answer:
Vitreous humor does not replenish while aqueous humor does.
Explanation:
Answer:
The type of treatment indicated to treat infertility due to blockage of the vas deferens is surgery to remove the obstruction (option C).
Explanation:
Blockage of the vas deferens is a known cause of obstructive azoospermia, which prevents the passage of sperm and causes infertility. This type of obstruction can be corrected by surgery, part of the treatment of infertility from this cause.
The vas deferens are in charge of conducting the sperm from the testicles to the ejaculatory ducts, which prevents these gametes from being expelled to fulfill their function in reproduction.
The other options are not correct because:
<em> A. </em><u><em>Medication to stimulate sperm production</em></u><em> does not resolve the blockage.
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<em> B. </em><u><em>Hormone therapy to increase testosterone </em></u><em>could be considered for infertility treatment, but the obstructive problem continues.
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<em> D. </em><u><em>Semen implantation in the testes</em></u><em> does not exist as a medical treatment.</em>
