A cell becomes arrested within the cell cycle because it is unable to replicate its DNA. In which stage would you predict the cell would become arrested?
A) Gap 1 phase
B) Gap 2 phase
C) mitotic phase
D) S (DNA synthesis) phase
E) telophase
A) Gap 1 phase
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Above zero degrees, the actual number of degrees Celsius for any given temperature is ____ the degrees Fahrenheit.
(a) higher than (b) lower than (c) the same as (d) a or b
Proteins synthesized in bacteria have which of the following at their amino terminal end?
a. N-formyl-methionine b. N-acetyl-adenine c. adenine triphosphate d. the AUG codon e. the UUU codon
A cat and a dog share a space in the barn. The cat gives birth to kittens in the dog's bed and then leaves
them alone. Later, you notice that the kittens follow the dog around during the day. This is an example of which type of behavior? a. imprinting b. habituation c. classical conditioning d. operant conditioning e. insight learning
If you could take a time machine back to the Carboniferous period, which of the following would you most likely encounter?
a. Creeping mats of low-growing bryophytes b Fields of tall grasses swaying in the wind c. Swampy forests dominated by tree lycophytes, horsetails, and ferns d. Huge forests of naked-seed trees filling the air with pollen e. The dominance of flowering plants