Blog

If the coding region of an mRNA is 2,400 nucleotides long, how many codons does it have?

The difference between mRNA and tRNA is that

The enzyme that unwinds the DNA prior to replication is called

Refer to the figure showing DNA strands. ​ ​ Which letter represents the leading strand?

What is the MOST LIKELY cause of the spike in cotton production in Mississippi in the mid-1800s shown on the chart?

Which of the following statements can be inferred from the painting?

• Invention of the cotton gin • Opening of lands along the Mississippi River • Growing demand for inexpensive laborWhich change occurred as a direct result of these developments? 

What had a major impact on American music during the early to mid-1800s?

“A little before the sale commenced [began], a short, broad, muscular man . . . elbowed his way through the crowd, like one who is going actively into business; and, coming up to the group, began to examine them systematically. From the moment that Tom saw him approaching, he felt an immediate and revolting horror at him, that increased as he came near. . . . This man proceeded to a very free personal examination of the lot. He seized Tom by the jaw, and pulled open his mouth to inspect his teeth; made him strip up his sleeve, to show his muscle; turned him round, made him jump and spring to show his paces. . . .” —Harriet Beecher Stowe, Uncle Tom’s Cabin How might reading this description cause a reader to support abolition?

All of these are benefits of bathing except