A variation in a single nucleotide of a DNA strand is called a(n)
a. RNA switch. b. thymine substitution.
c. environmental mutation. d. single nucleotide polymorphism.
d
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Describe why young children are at a higher risk for developing iron deficiency anemia. What modifications can be made to help decrease their risk?
What will be an ideal response?
What is an emulsifier?
What will be an ideal response?
Which of the following would NOT be good advice to give to a parent regarding the
introduction of solids to their six-month-old infant? A) Iron-fortified rice cereal is the first food to introduce to your infant. B) Add honey to cereal and fruit to improve infant acceptance of these new foods. C) Introduce one new food at a time and watch for signs of allergies. D) Select commercial baby foods that are low in sodium or sugar.
Which of the following statements about freezing is false?
A. Freezing ruptures cell membranes as the ice crystals expand. B. Packages or bags that have a heavy frost clinging to the outside should not be purchased because this is a sign of thawing and refreezing. C. Refrozen fruit is flaccid and less flavorful. D. A temperature of 32°F should be maintained at all times during storage and transport of frozen fruit.