Precise control of the division and differentiation of stem cell types is necessary for building the embryo as well as maintaining and regenerating tissues in the adult. progenitor differentiation through endocrine, paracrine, or juxtacrine mechanisms.

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#Id: 4547

#Unit 12. Applied Biology

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#Id: 6606

#Unit 7. System Physiology – Animal

The principal estrogen secreted by the ovaries is β-estradiol

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#Id: 8157

#Unit 2. Cellular Organization

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#Id: 882

#Unit 13. Methods in Biology

The genetic diseases caused by trinucleotide repeat SSRs within genes. Huntington disease (HD) is one of the approximately 20 such trinucleotide repeat diseases in humans. HD is transmitted as an autosomal dominant mutation.

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#Id: 7376

#Unit 5. Developmental Biology

Par-1 protein organizes microtubules specifically with their minus and plus ends at the anterior and posterior ends of the oocyte, respectively