A fetus is born with cardiac defects, CNS malformations, microtia, and thymic hypoplasia. The fetus was exposed in utero to which of the following drugs?

A. Cocaine
B. Isotretinoin
C. Thalidomide
D. Tobacco
E. Valproic Acid


Answer: B. Isotretinoin

Biology & Microbiology

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When the squid that contain luminescent bacterial symbionts hatch, they do NOT contain a bacterial symbiont. Symbiont transmission in this symbiosis is

A) vertical from parent to offspring. B) horizontal and involves specific selection of the symbiont from the environment. C) random and results in various different species being selected as the symbiont. D) mixed and results in multiple symbiont species colonizing the squid at once.

Biology & Microbiology

In a pedigree:

A. males are circles; females are triangles. B. females are circles; males are triangles. C. males are squares; females are triangles. D. females are squares; males are triangles. E. males are circles; females are squares. F. females are circles; males are squares.

Biology & Microbiology

What is the correct pathway for a neural impulse?

a. Interneuron - motor - sensory b. Sensory - motor - interneuron c. Motor - sensory - interneuron d. Motor - sensory - interneuron e. Sensory - interneuron - motor

Biology & Microbiology

In 2005, professional basketball player Eddy Curry was traded by the Chicago Bulls to the New York Knicks for

refusing to submit to a DNA test associated with a cardiac condition. If this had occurred after 2008, the ____ may have protected him from losing his position with the Bulls. a. National Organ Transplant Act b. HapMap Project c. Human Microbiome Project d. Genetic Information Nondiscrimination Act e. Ethical, Legal, and Social Implications program

Biology & Microbiology