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  Home >> Genetics Dictionary >>Horesetail - HCG Human chorionic gonadotropin

Horsetail
A seedless plant related to ferns. Twenty-five species of only one genus, Equisteum, remain today, whereas many different species, some the size of modern trees, were abundant in ancient swamps. Along with lycophytes and ferns, horsetails were among the first terrestrial plants to appear.

Ho, David
A physician and world-renowed' AIDS researcher. Dr. Ha overturned an earlier conventional assumption that the HIV. virus remains dormant far up to 10 years in a person before its outbreak into. AIDS. His recognition that the virus is active right from the beginning of infection led him to initiate the deployment of a combination of drugs to. overpower the virus

Housekeeping genes
Genes whose protein products are required for cellular maintenance or metabolism.

Human artificial chromosome (HAC)
A vector used to hold large DNA fragments

Human chorionic gonadotropin (hCG)
A hormone produced by the placenta during a pregnancy. Measurement of this hormone is the basis of pregnancy tests. An unusually high level of this hormone in the second trimester is one reason that further testing for Down syndrome may be recommended. An unusually low level may indicate a rare chromosome abnormality called trisomy 18.

Human gene therapy
See: gene therapy

 

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