In a certain plant, when individuals with blue flowers are crossed with individuals with blue flowers,
only blue flowers are produced. Plants with red flowers crossed with plants with red flowers
sometimes produce only red flowers, although other times they produce either red or blue flowers.
When plants with red flowers are crossed with plants with blue flowers, sometimes only red flowers
are produced; other times either red or blue flowers are produced. Which gene is dominant? What will be an ideal response?
Red
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The results of an experiment
(a) don’t have to be repeatable. (b) should be repeatable by the investigator. (c) should be repeatable by other investigators. (d) must be both b and c.
Different areas of coral reefs contain different species of corals. Describe 2 environmental characteristics that can account for the distribution patterns of coral species on a reef
What will be an ideal response?
The abbreviation QTL stands for ________, [three words] which are those genes that influence nonqualitative traits
Fill in the blank(s) with correct word
Dentists sometimes give a patient antibiotics after a teeth-cleaning procedure, especially if the patient is older or has heart disease. What is the best explanation for this?
A. The materials used during a teeth-cleaning procedure are high in low-density lipoproteins, and contribute to atherosclerosis. B. Antibiotics help remove the plaque that remains on the teeth after a teeth-cleaning procedure. C. Antibiotics help kill the bacteria that move from the mouth to the bloodstream, and prevent the bacteria from contributing to atherosclerosis. D. Teeth-cleaning procedures add bacteria to a person's mouth, and antibiotics are needed to control the bacteria.