Flower parts arranged in multiples of four or five is characteristic of:
A) both monocots and dicots. B) monocots.
C) dicots. D) non-flowering seed plants.
Refer to the scenario below, and then answer the following question(s).
A friend of yours finds a plastic bag containing what appear to be similar seeds collected last year during a vacation hiking trip. Your friend isn't quite sure which plant he collected them from. You open the seed with a sharp knife, examine the inside, and ask him if it was a non-woody plant with narrow leaves. Now recalling the plant, and astonished by your "detective work," he says, "Yes! How did you know?" Your friend then presents several pressed flowers and states that one of the flowers was from the plant from which he collected the seeds, but he isn't exactly sure which one. You examine the petals and sepals of each flower. The first flower has six parts, the second has five parts, and the third has eight parts.
Answer: C
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Two pure-breeding phlox plants were crossed, one with dark-blue flowers and the other with pink flowers. The F1 generation all had dark-blue flowers. When the F1 were crossed with each other, the F2 generation consisted of 176 plants: 101 with dark-blue flowers, 33 with light-blue flowers, 30 with red flowers, and 10 with pink flowers. How is flower color controlled in phlox?
A) one gene with four alleles B) one gene with two codominant alleles C) two genes whose alleles interact additively D) two genes with dominant epistasis
Water can maintain a constant temperature better than some other liquids because _____
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A) bone tissue B) striated muscle tissue C) fibrous connective tissue D) cartilage
The non-leukocyte tissue cells known as ________ produce leukotrienes and prostaglandins in response to allergen binding
A) neutrophils B) basophils C) monocytes D) lymphocytes E) mast cells