Question

1. Which of the following ligands bind to internal receptors

A. serotonin        B. epinephrine                  C. aldosterone                   D. adrenalin

2. T/F: benign tumors are made of transformed cells

Comparison: The following paired statements are to be compared in a quantitative sense. In each case choose:      “A” if “a” is greater than “b”

                           “B” if “b” is greater than “a”

                           “C” if “a” and “b” are equal or nearly equal

3.        A. The speed of getting an endocrine signal from the cell that made it to a cell with a receptor.

             B. The speed of getting a paracrine signal from the cell that made it to a cell with a receptor.

(faster is greater)

4.          A. length of kinetochore microtubules in early prophase of mitosis

             B. length of kinetochore microtubules in early anaphase of mitosis

5.          A. The likelihood of finding sister chromatids in a cell undergoing telophase I

             B. The likelihood of finding sister chromatids in a cell undergoing prophase II

6.          A. The number of phenotypes from a monohybrid cross involving incomplete dominance

             B. The number of genotypes from a monohybrid cross involving incomplete dominance

7.          A. The probability of an otherwise normal male inheriting an X-linked trait from his father

             B. The probability of an otherwise normal female inheriting a Y-linked trait from her father

8. Spiders X, a species you have been studying for years, comes in two different color morphs (red and black) in the wild. During a series of breeding experiments, you notice that occasionally an orange morph appears. The orange morph is a little less frequent than the red morph, and the black morph is the most common. (3pts)

From this example, what can we deduce about the inheritance of these geneS that control the color phenotype?

Answer 1

QUESTION 1

The correct answer is aldosterone. The aldosterone receptor is also called mineralocorticoid receptor which is a nuclear receptor (internal receptor) that is receptor for several mineralocorticoids such as aldosterone and deoxycorticoid ester. In this case, the aldosterone is able to diffuse into the cell and interact with the receptor, producing a transduction signal that affects the expression of certain genes.

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