This nucleotide is found in RNA but not in DNA: ________
Fill in the blank(s) with correct word
uracil
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An earthworm detects sound
a. through specialized tympanic membranes located near the head. b. through a thinned region of the exoskeleton. c. through general mechanoreceptors on its skin. d. by using a specialized organ that measures the frequency of vibration of the surrounding dirt particles. e. through a series of mechanoreceptors arranged in a lateral line.
The respiratory surface of an earthworm is
found in the
a. lungs. b. gills. c. skin. d. gastrovascular cavities. e. trachaea
Which muscle extends the hip when walking and climbing?
a. gluteus maximums b. biceps femoris c. gastrocnemius d. sartorius e. quadriceps femoris
In comparing DNA replication with RNA transcription in the same cell, which of the following is true only of replication?
A. It uses RNA polymerase. B. The entire template molecule is represented in the product. C. The process occurs in the nucleus of a eukaryotic cell. D. It makes a new molecule from its 5' end to its 3' end. E. The process is extremely fast once it is initiated.