Down syndrome is caused by the nondisjuction of the chromosome 21.
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Answer:
They would be a damage of cells because homeostasis regulate the internal body environment so as to maintain a steady state to provide optimum conditions for normal and efficient functioning of the body cells.
a layer of cells in a plant stem from which new tissue grows
Answer:
Exterior of the cell.
Explanation:
The pulse chase experiment was done to understand the secretion pathway of the protein at different time intervals. The protein travels through the endomembrane system for its secretion.
The cells of the pancreas are labelled with the leucine which is radioactive in nature. The black spots will be shown on the cell exterior as three hours are enough for the secretion of the protein outside the cell. This indicates that the protein has been secreted out of the cell.
Thus, the answer is exterior of the cell.
