The ________ is the innermost layer of the eye that is lined with almost a quarter-billion photoreceptors
Fill in the blank(s) with correct word
retina
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A plasmid that can either exist independently of the chromosome or be integrated into it is called a(n) ________.
Fill in the blank(s) with the appropriate word(s).
Which of the following is true of eudicots but not monocots?
A. Eudicots have flower parts usually in multiples of 4 or 5. B. Eudicots have true seed leaves but monocots do not. C. Eudicots have vascular bundles scattered in their stems. D. Eudicots have venation that is parallel to the leaf axis. E. Eudicots have stomatal pores but monocots do not.
Hardy-Weinberg conditions were established in the lake after the asteroid hit. The fish population mated and produced the next generation. Scientists sampled 100 fish that were all offspring of the post-asteroid population. How many yellow fish will be among the 100 offspring sampled?
A) 4 B) 8 C) 15 D) 30 E) 32
Which base is found in DNA, but not in RNA?
a. uracil b. cytosine c. guanine d. thymine e. adenine