Which of the following points to a recessive X-linked trait?
a. it is common in both men and woman
b. a carrier mother has the trait on both X chromosomes
c. a carrier father carries two copies of the gene
d. only a daughter can inherit a recessive allele from an affected father
e. an affected daughter has the trait on one X chromosome
ANSWER: d
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These pathways process stimuli received from the internal organs
A. Somatosensory pathways B. Internosensory pathways C. Viscerosensory pathways D. Somatomotor pathways E. Visceromotor pathways
Which of the following lists gives the cellular processes for limb formation in correct order from first to last?
A. cell division, cell migration, cell differentiation, cell death B. cell migration, cell differentiation, cell division, cell death C. cell migration, cell division, cell differentiation, cell death D. cell division, cell differentiation, cell migration, cell death E. cell differentiation, cell migration, cell division, cell death
This figure depicts the Briggs experiment, in which he tested the hypothesis that light causes auxin to move to the shaded side of seedlings. Based on what you remember about this experiment, which shoot do you expect to bend the most?
A. Shoot A.
B. Shoot B.
C. Shoot C.
D. Shoot D.
Individuals medically diagnosed with "dry eyes" experience feelings of dryness, itchiness, burning, and general irritation in their eyes. Dry eyes can be caused by a decreased production of tears by the tear-producing glands in the eyes. What treatment would help alleviate dry eyes?
A) stimulating production of aqueous humor B) blocking the eyelid openings used to drain tears C) stimulating production of vitreous humor