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Observation of two separate bipolar spindles in the human zygote.

08:00 EDT 30th March 2019 | BioPortfolio

Summary of "Observation of two separate bipolar spindles in the human zygote."

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This article was published in the following journal.

Name: Journal of assisted reproduction and genetics
ISSN: 1573-7330
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Medical and Biotech [MESH] Definitions

The act of regarding attentively and studying facts and occurrences, gathering data through analyzing, measuring, and drawing conclusions, with the purpose of applying the observed information to theoretical assumptions. Observation as a scientific method in the acquisition of knowledge began in classical antiquity; in modern science and medicine its greatest application is facilitated by modern technology. Observation is one of the components of the research process.

The occurrence in an individual of two or more cell populations of different chromosomal constitutions, derived from a single ZYGOTE, as opposed to CHIMERISM in which the different cell populations are derived from more than one zygote.

Motor neurons which activate the contractile regions of intrafusal SKELETAL MUSCLE FIBERS, thus adjusting the sensitivity of the MUSCLE SPINDLES to stretch. Gamma motor neurons may be "static" or "dynamic" according to which aspect of responsiveness (or which fiber types) they regulate. The alpha and gamma motor neurons are often activated together (alpha gamma coactivation) which allows the spindles to contribute to the control of movement trajectories despite changes in muscle length.

The entity of a developing mammal (MAMMALS), generally from the cleavage of a ZYGOTE to the end of embryonic differentiation of basic structures. For the human embryo, this represents the first two months of intrauterine development preceding the stages of the FETUS.

The mechanism in a given species, by which the SEX of an individual is fixed. In many species, sex is established at FERTILIZATION by the SPERM that fertilizes the EGG. In human, the Y CHROMOSOME bearing sperm determine production of the male ZYGOTE.

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Bipolar disorder, also known as manic-depressive illness, is a brain disorder that causes unusual shifts in mood, energy, activity levels, and the ability to carry out day-to-day tasks. Over half of Bipolar cases develops before the age of 25. Bipolar ...


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