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TLS Online TPP Program

#Question id: 1117

At puberty, an adolescent female body changes in both structure and function of several organ systems, primarily under the influence of changing concentrations of estrogen and other steroid hormones. How can one hormone, such as estrogen, mediate so many effects?

#SCPH06 I Botany

  1. Estrogen is produced in very large concentration by nearly every tissue of the body.

  2. Each cell responds in the same way when steroids bind to the cell surface.

  3. Estrogen is kept away from the surface of any cells, not able to bind it at the surface.

  4. Estrogen binds to specific receptors inside many kinds of cells, each with different responses.

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TLS Online TPP Program

#Question id: 361

#SCPH05 I Biotechnology

Calculate the percentage of histidine that has its imidazole side chain protonated at pH 7.3. The pKa values for histidine are pK1 = 1.8, pK2 (imidazole) = 6.0, and pK3 = 9.2.
TLS Online TPP Program

#Question id: 2932

#SCPH01 Biochemistry

Which of the following is targeted by the SCF complex?
TLS Online TPP Program

#Question id: 1390

#SCPH28 | Zoology

Which of the following statements describes the events of apoptosis?
TLS Online TPP Program

#Question id: 753

#SCPH28 | Zoology

The renaturation of regions of complementarity between different nucleic acid strands is known as___________
TLS Online TPP Program

#Question id: 8899

#SCPH28 | Zoology

A new species of aquatic chordate is discovered that closely resembles an ancient form. It has the following characteristics: external armor of bony plates, no paired lateral fins, and a suspension-feeding mode of nutrition. In addition to these, it will probably have which of the following characteristics?