The representation H?O?H is known as:
a. a structural formula.
b. a simplest formula.
c. a molecular formula.
d. a Lewis structure.
e. an orbital diagram.
A
You might also like to view...
You are a doctor examining a patient whose thymus never developed because of a medical condition called DiGeorge syndrome. You know that this medical condition is usually due to the deletion of a section of chromosome #22
The karyotype of this patient shows one copy of chromosome #22 that is of normal length and one copy that is shortened. This indicates that the genotype of this patient is _______________ and that the expression of this trait is _____________. A. Homozygous dominant; dominant B. Heterozygous; dominant C. Heterozygous; recessive D. Homozygous recessive; recessive
In the disease myasthenia gravis, there is a deficiency of acetylcholine receptors at the neuromuscular junction. This blocks contraction by preventing muscle activation at which point?
A. generation of action potentials in the motor neuron B. opening of the T-tubule system C. release of Ca2+ from the sarcoplasmic reticulum D. altering the interaction of troponin with tropomyosin E. generation of action potentials in the muscle fiber
Once inside the human body, HIV primarily infects ____
a. liver tissue b. kidney tissue c. red blood cells d. white blood cells e. brain tissue
Why is it so important that all of the chromosomes align on the metaphase plate during metaphase?
A. This is the location where the chromosomes can become attached to the spindle microtubules. B. This is the only place in the cell where the cyclins and Cdks are located. C. This allows asters to form. D. This allows sister chromatids to form. E. If they cannot, it suggests that they aren't properly attached to the spindle microtubules, and thus won't separate properly during anaphase.