Crossing over would contribute to the variability in genetic expression between siblings.
Answer the following statement true (T) or false (F)
True
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The cochlea of each ear contains about 16,000 hair cells. Even though they are in the minority, it is the ____________ hair cells that are principally responsible for transducing sound waves into what we perceive as sound sensations
a. outer b. inner c. utricular d. saccular e. ampullar
Which amino acid is usually formed from the transamination of another amino acid?
A. Glutamic acid B. Glycine C. Serine D. Aspartic acid
Under normal circumstances, which passageway is capable of conducting air, food, or liquid?
A. Nasopharynx B. Laryngopharynx C. Glottis D. Larynx E. Trachea
Which of these is a function of intrinsic factor?
A. It is secreted by salivary glands, and is necessary for digestion of vitamin B12. B. It is secreted by parietal cells in the gastric mucosa, and its main function is causing insulin release. C. It is secreted in the stomach, and its main function is activating pepsinogen into pepsin. D. It is secreted by the small intestine mucosa, and its main function is initiating the intrinsic electrical activity of the pacemaker cells in the stomach. E. It is secreted in the stomach, and a deficiency of it would cause anemia.