A couple is trying to calculate the chance of genetic traits in their potential offspring. From family history, the man presumes he is heterozygous for the height gene via the "tall" allele (T). His partner is short in stature, so she believes she is homozygous for the height gene via the "short" allele (t). Assuming the "tall" allele is completely dominant, what is the chance that their offspring would be tall in stature?
A. 50%
B. 75%
C. 25%
D. 100%
Answer: A
You might also like to view...
Under normal conditions, glomerular filtration depends on three main pressures. Which of those pressures is a pressure that favors the filtration pressure?
A) glomerular hydrostatic pressure B) capsular hydrostatic pressure C) capsular colloid osmotic pressure D) blood colloid osmotic pressure E) urinary bladder hydrostatic pressure
Consider a mother with normal vision who has a son with red-green color blindness. The mother was a "carrier" of the affected gene, as she had a normal phenotype but
A. two recessive alleles. B. an incompletely penetrating genotype. C. two dominant alleles. D. one dominant and one recessive allele. E. a codominant set of alleles.
The route of major parasympathetic outflow from the head is via the ________.
A) sympathetic trunk B) phrenic nerve C) vagus nerve D) sacral nerve
When the diaphragm contracts, thoracic volume increases and pressure in the lungs decreases.
a. true b. false