Q. Hematopoietic stem cells cannot be isolated as a pure population.

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Q. Hematopoietic stem cells lack the expression of mature blood cell markers.

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Q. Hematopoietic stem cells, like all adult stem cells, mostly exist in a state of ____________ or reversible growth arrest.

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Q. ____________ strand breaks accumulate in long term Hematopoietic stem cells during aging.

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Q. _________ is a gelatinous substance within the umbilical cord.

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Q. Wharton’s jelly is a potential source of ________

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Q. Wharton’s jelly may contain some fibroblast and ___________

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Q. As a mucous tissue, Wharton’s jelly protects and insulates umbilical blood vessels.

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Q. Wharton’s jelly is derived from extra-embryonic ____________

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Q. Bone is a ______________ tissue.

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Q. Formation of new bone tissue is known as __________

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Q. _____________ are simply osteoblasts trapped in the matrix that they secrete.

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Q. An osteoblast is a type of bone cell that breaks down bone tissue.

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Q. ______________ imperfecta is a disorder of bone fragility chiefly caused by mutations in the COL1A1 and COL1A2 genes that encode type I procollagen.

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Q. Bones contain elastic elements like type I collagen.

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Q. Epithelial cells help in establishing new bones in animal models.

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Q. ______________ is a bone disease that occurs when the body loses too much bone.

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Q. Articular cartilage is primarily composed of ____________ tissue.

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Q. Damaged hyaline cartilage is unable to self-repair due to its _______ nature.

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Q. __________ is a surgical technique that has been developed to treat chondral defects, which are damaged areas of articular cartilage of the knee.

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