Which of the following is an example of codominance?
A) in roan cattle, you can see a mix or both red and white furs
B) there are many possible mutations that lead to white eyes in flies
C) flowers of a certain plant can come in purple, blue, or yellow
D) a scorpion's venom is more potent when it's younger
E) a certain plant can have jagged, rough, or smooth edges on its leaves
Answer: A
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The preferred habitat of S. aureus is the
A. throat. B. urethra. C. bladder. D. nasal chamber.
Rattlesnakes strike and inject venom into prey and then release the prey item and follow it
until the venom takes its effect. Typically, rattlesnakes strike at the base of the skull, and their strike accuracy is very high. Because the brain is very active, it produces a lot of heat, and this is detected by the snakes with __________ located in pit organs on the anterior region of the head.
a. thermoreceptors b. photoreceptors c. chemoreceptors d. pain receptors
In transcription,
a. several proteins can made from the same DNA molecule. b. promoters are at the beginning of a gene. c. messenger RNA is produced. d. a specific enzyme called RNA polymerase is required. e. all of these are true.
Imagine that beaker A has a 10% sucrose solution, and beaker B has an 8% sucrose solution. This means that
A) beaker A is isotonic relative to beaker B. B) beaker A is hypotonic relative to beaker B. C) beaker A is hypertonic relative to beaker B.