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What is the role of Notch proteins in skin development? Detail the role that each plays.
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- Which of the following is a true statement about hair development? (Check all that apply) A) At telogen, dermal fibroblasts secrete BMP4, which inhibits the proliferation of HFSCS. B At telogen, cells are actively proliferating in the inner bulge layer. At telogen, BMP6 and FGF18 from the inner bulge layer promote the apoptosis of HFSCS. At telogen, subcutaneous fat cells secrete BMP2, which inhibits the proliferation of HFSCS. E At telogen-to-anagen transition, fat cells precursors produce PDGF-alpha, which induces the dermal papilla to produce other factors F) At telogen-to-anagen transition, dermal fibroblasts secrete Wnts, which promote the proliferation of HFSCS. G At telogen, stem cells are actively proliferating. H) At anagen, stem cells are all quiescent. At telogen-to-anagen transition, stem cells become activated. At catagen, most of the outer root sheath undergoes apoptosis.what is the function of NOTCH3What is Notch protein?
- What significance do BRCA1 and BRCA2 have in regard to developing cancer, and what types of cancer are associated with these genes?what is Notch signaling?Please answer asap and in short Name the two cell populations in the skin that keep the hair follicle in a quiescent (inactive) state (make sure to name the cell types and provide the genes they express)
- State the function of leydig cells.What specific molecular factors determine the differentiation of embryonic stem cells into different cell types during development?An oily secretion that helps to waterproof body surface Become active at puberty Responds to elevated body temperature Gland that secretes an oily substance Hard protein of nails and hair Tube-like part that contains the root of the hair Causes hair to stand on end and goose bumps to appear An oily secretion that helps to waterproof body surface Become active at puberty Responds to elevated body temperature Gland that secretes an oily substance Hard protein of nails and hair Tube-like part that contains the root of the hair Causes hair to stand on end and goose bumps to appear Dark brown pigment whose variation in amounts can contribute to a variety of hair colors Composed of adipose and major blood vessels Lacks blood vessels and composed of stratified squamous epithelial tissue Contains muscles, nerves, capillaries, hair follicles and composed of irregular dense connective…
- What is the status of tissue engineering and stem cell reseaech in the Philippines. DESCRIBE THE STATUS OF TISSUE ENGINEERING AND STEM CELL THERAPHY IN THE PHILIPPINES.What is the location of thesalivary glands in humans?Choose all that are false when considering the adaptive response to tan. a) The ability to tan means that skin tone has a heritability (h2) < 1.0. b) It is a cellular response to DNA damage. c) Represents an increased rate of melanosome transport from keratinocytes to melanocytes. d) Tanning occurs in the absence of p53.