Glucostatic Theory (1940s and 50s)
What will be an ideal response?
> Researchers working under the assumption that eating is regulated by some type of set-point system speculated about the nature of the regulation
> Suggested that eating is regulated by a system designed to maintain a blood glucose levels drop significantly below their set point and that we become satiated when eating returns our blood glucose levels to their set point
> the various versions of this theory are collectively referred to as the glucostatic theory
> it seemed to make good sense that they main purpose of eating is to defend a blood glucose set point because glucose is the brains primary fuel
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Imagine in lemmings, that gray fur color (G) is dominant over white (g). There is another gene, called color, and individuals must have at least one color (C) allele for gray color to be expressed. A lemming that is heterozygous at both loci is crossed with a white lemming that is heterozygous for gray fur color. Which of the following is correct regarding their offspring?
A. All will be gray B. All will be white C. 3/8 will be gray, 5/8 will be white D. 1/4 will be gray, 3/4 will be white E. They will have a ratio of 9 gray:7 white
The exchange of chromosome regions between homologous chromosomes during meiosis is known as ____
a. irradiation damage b. crossing over c. chromosomal aberration d. fertilization e. spindle fiber formation
The seminal vesicles produce which one of the following to serve as the energy source to fuel sperm motility?
A) fat B) fructose C) glutamine D) prostaglandin E) glucose
Analysis of blood to detect specific antigens or antibodies is known as
A) immunology. B) hematology. C) serology. D) cytology. E) histology.