A trait shows ____ if the phenotype of that trait is present in less than 100% of those with the related genotype
a. autosomal recessive inheritance
b. autosomal dominant inheritance
c. incomplete dominance
d. incomplete penetrance
e. incomplete expressivity
d
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Blood sugar is regulated by two pancreatic hormones—insulin and glucagon. When blood sugar rises, insulin is released; it binds to receptors and, through signal transduction, results in an increase in glucose uptake by cells
Blood sugar is regulated by two pancreatic hormonesâ€"insulin and glucagon. When blood sugar rises, insulin is released; it binds to receptors and, through signal transduction, results in an increase in glucose uptake by cells, which effectively lowers blood glucose levels. When blood sugar decreases, glucagon is released, binds to cell receptors, and causes glucose to be released into circulation, thereby increasing blood glucose levels. Diabetes mellitus is a disorder that results from excessively high levels of blood glucose. Type II diabetics have normal to elevated levels of insulin. What, then, might be causing their elevated blood glucose levels? A) inadequate insulin production B) defective receptors C) defective second messenger D) overproduction of glucagon
Primary oocytes and spermatogonia are both haploid cells
a. True b. False Indicate whether the statement is true or false
The climax community ____
a. is formed by species with the greatest range of environmental tolerance b. is the most common community found in an area c. changes over time d. is well adapted to the climate and persists until the climate changes e. is seasonal
The political reform movement that arose among farmers in the late 1800s was the:
A) global justice movement. B) socialistic movement. C) populist movement. D) progressive movement.