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Zygote
Zygote A fertilized egg. Or the diploid cell that results from the joining of two haploid gametes (sperm and egg) during sexual reproduction, that will cleave to form an embryo.
RELATED TERMS--------------------------------------
Egg
The mature female reproductive cell.
Diploid
Refers to a cell having two sets of chromosomes (in humans, 46 chromosomes). In contrast, a haploid cell, such as a gamete, has only one set of chromosomes (23 in humans).
Cell
Fundamental structural unit of all life. The cell consists primarily of an outer plasma membrane, which separates it from the environment; the genetic material (DNA), which encodes heritable information for the maintainance of life; and the cytoplasm, a heterogeneous assemblage of ions, molecules, and fluid.
Haploid
A single set of chromosomes (half the full set of genetic material), present in the egg and sperm cells of animals and in the egg and pollen cells of plants. Human beings have 23 chromosomes in their reproductive cells.
Sexual
Pertaining to sex or, more particularly, the stimulation, responsiveness, and functions of the sex organs either alone or with one or more partners.
Embryo
The early stages of development before an organism becomes self supporting.
SIMILAR TERMS--------------------------------------
Zygote intrafallopian transfer (ZIFT)
Method of treating infertility by removing eggs from a woman's ovaries, fertilizing them in the laboratory with sperm from her partner or a donor, and inserting one or more of the fertilized eggs into one of her fallopian tubes.
PREVIOUS AND NEXT TERMS--------------------------------------
Zone Diet
A calorie-restricted diet that provides adequate protein, moderate levels of carbohydrates, essential fats, and micronutrients spread through three meals and two snacks that approximately maintain the protein-to-carbohydrate ratio throughout the day.
Zygote
Zoster
Acute inflammatory disease with vesicles grouped in the course of cutaneous nerves, as in herpes zoster.
Zoloft
A commercial name for sertraline hydrochloride, an orally administered antidepressant of the selective serotonin reuptake inhibitor (SSRI) type. Sertraline is used medically mainly to treat the symptoms of depression.
Zithromax
An antibiotic approved for the treatment of chlamydia and bacterial infections of the skin and respiratory tract. It may also have activity against MAC, toxoplasmosis and cryptosporidiosis.
Zellweger Syndrome
Zellweger Syndrome is a rare, autosomal recessive congenital syndrome of multiple abnormalities. Some of the principal characteristics are cerebral dysfunction, defective myelinization, craniofacial abnormalities, renal cysts, hepatomegaly, and biliary dysgenesis. Absence of liver and kidney peroxisomes is the underlying basic defect.
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