Which is true of Dietary Reference Intakes?
A. They are an estimate of what people normally eat.
B. If they are followed you will be healthy.
C. They apply to a person with medical problems.
D. They provide information on the amounts of certain nutrients various members of the public should receive.
D. They provide information on the amounts of certain nutrients various members of the public should receive.
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In humans and other mammals, X inactivation takes place:
A. early in development, with each new cell inheriting the same inactivated X chromosome as its parent cell. B. late in development, with each new cell inheriting the same inactivated X chromosome as its parent cell. C. throughout the lifetime of an organismâ€"with each new cell division, both X chromosomes are activated, and one is then inactivated in each new cell. D. early in development, with all maternal X chromosomes being inactivated and cells maintaining active copies of only the paternal X chromosome. E. early in development, with all paternal X chromosomes being inactivated and cells maintaining active copies of only the maternal X chromosome.
Which of the following would be present in highest numbers in the indigenous microflora of the skin?
A) Candida albicans B) coagulase-negative staphylococci C) Enterococcus spp. D) Escherichia coli
The molecules that bind to a repressor and cause it to no longer bind to the operator are called
A. activators. B. repressors. C. introns. D. inducers.
Which molecule serves as the template during translation?
A) DNA B) mRNA C) tRNA D) polymerase