The inheritance of curly hair illustrates incomplete dominance. When a curly haired individual reproduces with a straight-haired one, the children all have wavy hair. What offspring would be produced, in what proportions, when two people with wavy hair
reproduce?
What will be an ideal response?
A 1:2:1 ratio would be obtained.
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The larvae of the worm S. stercoralis are the most common found in human stool specimens. Depending on the fecal transit time through the intestine and the patient's condition, both rhabditiform and rare filariform may be present. The treatment of choice for uncomplicated infections is:
a. metronidazole. b. ivermectin. c. pyrantel pamoate. d. combination antihelminthic and board-spectrum antibiotics.
One of the first applications of pharmacogenetics in prescribing drugs is for
A) Accutane, an acne drug. B) an early pregnancy test kit. C) warfarin, a blood thinner. D) a narcotic to treat chronic pain.
When guard cells swell, _____
a. transpiration ceases c. a stoma opens b. sugars enter phloem d. root cells die
If the nitrogenous bases of both a DNA transposon and a retrotransposon were tagged with fluorescent markers, what statement best describes the result after transposition of both types of transposable elements (TEs) has occurred?
A. The markers would be found at the new site of the retrotransposon, but not at the new site of the DNA transposon. B. The markers would be not be found at either new site. C. The markers would be found at the new site of the DNA transposon, but not at the new site of the retrotransposon. D. The markers would be found at the new sites of the DNA transposon and the retrotransposon.