Which of the following is important in the treatment of potential infections by Clostridium tetani?
A. Prophylactic use of antitoxin
B. Proper care of wounds contaminated with soil
C. Administration of penicillin
D. All of the choices are important in the treatment of potential infections by Clostridium tetani.
Answer: D
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Genetic studies of an animal show that eye color is controlled by an autosomal gene with the dominant
allele (R) for red eye color and the recessive allele (r) for yellow eye color. A second autosomal gene has the dominant allele (T) leading to paws with thumbs while the recessive allele (t) codes for paws without thumbs. The genetic cross RRTT ? rrtt creates offspring with genotype RrTt. One of those dihybrids is mated in a testcross (RrTt ? rrtt). Based on the principle of independent assortment the testcross should produce offspring with the phenotype ratio
a. 3 red-eyed with thumbs: 1 yellow-eyed without thumbs. b. 1 red-eyed with thumbs: 1 yellow-eyed with thumbs: 1 red-eyed without thumbs: 1 yellow-eyed without thumbs. c. 1 red-eyed with thumbs: 1 yellow-eyed without thumbs. d. 9 red-eyed with thumbs: 3 yellow-eyed with thumbs: 3 red-eyed without thumbs: 1 yellow-eyed without thumbs. e. 3 yellow-eyed with thumbs: 1 red-eyed without thumbs.
The global value of ecosystem services has been estimated at around:
1.$33 million 2.$33 billion 3.$33 trillion 4.$330 trillion
Which of the following is common to both Sanger sequencing and next-generation sequencing?
A) radioactive labels B) gel electrophoresis C) tethered DNA fragments D) chain terminating nucleotides E) lasers
Which of the following is not true of transcription
What will be an ideal response?