Two strands of molecules that twist around each other like a spiral staircase is called
A) a chromosome.
B) DNA.
C) a gene.
D) a genome.
B) DNA.
2.1-5.The "stairs" of DNA molecules are made of
A) nucleotide bases.
B) adenine, thymine, guanine, and cytosine.
C) both A and B.
D) neither A nor B.
You might also like to view...
In which illusion do the subjects typically report that the horizontal line closer to the origin of the diagonals is longer than the one away from the origin?
a) Poggendorff illusion b) Muller-Lyer illusion c) Ponzo illusion d) Horizontal-vertical illusion
Poverty is a risk factor for child maltreatment
a. True b. False Indicate whether the statement is true or false
Eight-year-old Anya is a recent immigrant to the United States. Based on current research, we can expect that during Anya's middle childhood years she will
a. not do well in the United States. b. do better if she goes back to her country of origin. c. do quite well in the United States. d. struggle to adapt to the changes in her life.
JOLs tend to be ______.
a. accurate b. underly confident c. accurate only when a task is complex d. overly confident