Small RNAs can regulate gene expression. One type, called micro RNA (miRNA), acts by binding directly to
A. mRNA to prevent translation.
B. tRNA to prevent transcription.
C. mRNA to prevent transcription.
D. tRNA to prevent translation.
A. mRNA to prevent translation.
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The term that describes the movement of Earth's crust and includes the process of subduction is ____
Fill in the blank with the appropriate word.
About twelve to twenty-four hours after the previous meal, a person's blood-sugar level normally varies from 60 to 90
milligrams per 100 milliliters of blood, though it may rise to 130 mg/100 ml after meals high in carbohydrates. That the blood-sugar level is maintained within a fairly narrow range despite uneven intake of sugar is due to the body's ability to carry out
a. adaptation. b. inheritance. c. metabolism. d. homeostasis.
e. evolution.Which of the above plants belong to the same
phylum? a. apple b. dog rose c. arctic rose d. marijuana e. all of these
A child touches a hot pot on a stove, burns his finger, and won't touch another pot. This is an example of ________ learning
Fill in the blank(s) with correct word