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Place these steps of the insulin signaling pathway in the correct order from insultin is secreted to glucose enters the cell. Place all eight steps. The abbreviation PIP2 is used for phosphatidylinositol 4,5-bisphosphate; PIP3 is used for phosphatidylinositol 3,4,5-trisphosphate. 1. Activation of Akt 2. Binding of insulin to the alpha […]

You are investigating 4 recessive alleles in corn. They are whimpy ears (w), striped leaves (s), shriveled kernels (k), and red tassels (r). Their dominant counterparts are represented by the “+” symbol. A plant that is homozygous recessive for all four genes (ww ss kk rr) is crossed with a […]

Evolutionary Biology in the age of Genomics- Q1. Phylogenetic trees- You are analyzing sequences sampled from four turtle species (A-D), considering a genomic region that is 75 base pairs long. You observe the following table of the number of substitutions between pairs of species:   A B C D A […]

Drug X is used to suppress the secretion of CRH. Two patients with hypersecretion of cortisol are given Drug X. Patient A’s cortisol secretion level remains elevated, but patient B’s cortisol secretion level falls to normal levels. 1. Determine which patient has primary hypercortisolism (if any) and which has secondary […]