Answer:
Sperm washing is the process in which individual sperms are separated from the semen. Washed sperm is used in artificial insemination using the intrauterine insemination (IUI) technique and in in vitro fertilization (IVF). It may also be used to decrease the risk of HIV transmission by an HIV-positive male, in which case the washed sperm is injected into a female using an artificial insemination technique.
Sperm washing involves removing any mucus and non-motile sperm in the semen to improve the chances of fertilization and to extract certain disease-carrying material in the semen. Sperm washing is a standard procedure in infertility treatment.
Explanation:
Sperm washing takes place in a laboratory following sperm donation.
Sperm may be washed by density gradient centrifugation or by a "direct swim-up" technique that does not involve centrifugation. In normal semen samples, centrifugation causes no more DNA damage to spermatozoa than a direct swim-up technique.[1]
Washed sperm is concentrated in Hams F10 media without L-glutamine, warmed to 37 °C (99 °F).[2] A chemical known as a cryoprotectant is added to the sperm to aid the freezing and thawing process.[3] Further chemicals may be added which separate the most active sperm in the sample, as well as extend or dilute the sample so that vials for a number of inseminations are produced.
Answer:
All information is required on the new label.
Explanation:
Required on new label:
a. Daily Value of potassium
b. Daily Value of iron
c. Daily Value of vitamin D
d. Calories from fat
e. Added sugars
f. Daily Value of vitamin C
g. Servings per container
Required on old label:
a. Daily Value of potassium
b. Daily Value of iron
c. Daily Value of vitamin D
d. Calories from fat
f. Daily Value of vitamin C
g. Servings per container
In the ELISA test, rabbit antibodies are used to confirm the presence of antigen in human blood collected from a crime scene. <u>Is false</u>, the ELISA test cannot be used for this.
<h3>What is the ELISA test for?</h3>
The ELISA test is responsible for the detection of different infectious diseases, since most pathological agents lead to the production of immunoglobulins. It can also be used in the diagnosis of autoimmune diseases or allergies. This diagnostic method is the preferred method for detecting the HIV virus.
With this information, we can conclude that the ELISA test cannot be used for this purpose.
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