All of the following statements are true regarding discoveries made by the Human Microbiome Project except
a) the genes coded by our microbiome number in the millions, whereas human cells contain approximately 21,000 genes.
b) areas of the body once believed to be sterile, are now known to harbor microbes.
c) the microbiota does not contain pathogens; all of the microbes in our microbiome are non-pathogenic.
d) the composition of the microbiome has implications for the development of other, non-infectious diseases such as diabetes, obesity and asthma.
e) bacteria, as well as viruses and fungi, make up the microbiome
Answer: c) the microbiota does not contain pathogens; all of the microbes in our microbiome are non-pathogenic.
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Which one of the following represents the reduced forms of the two major biological cofactors?
A. NAD+ and FAD B. NAD+ and FADH2 C. NADH and FAD D. NADH and FADH2
Which of the following is NOT true concerning homologous chromosomes?
a. There are two of each kind. b. Each parent contributes one of each homologous pair. c. Most homologous chromosomes carry the same genes for the same traits. d. The number of homologous chromosomes is doubled in each generation. e. Homologous chromosomes pair up during early meiosis.
Viral-infected human cells often send out special proteins that serve as an early warning system to uninfected cells. In response, the uninfected cells develop antiviral proteins that protect them
The early warning proteins sent out by viral-infected cells are A) complement. B) interferon. C) antibodies. D) antigens. E) antibiotics.
Probability is calculated by dividing the number of one kind of possible outcome by the
A.) number of genes being considered. B.) total number of all possible outcomes. C.) number of other kinds of outcomes. D.) total number of offspring produced.