The phase before onset of DNA replication is the
A) G1 phase
B) G2 phase
C) S phase
D) M phase
Ans: A) G1 phase
You might also like to view...
Which enzyme recognizes a specific nucleotide sequence (~4 to 8 nucleotides in length) and catalyzes the digestion of the nucleic acid at that site, causing a break in the DNA strand?
a. Ligase b. Gyrase c. Helicase d. Endonuclease
The process by which water is lost by evaporation from aerial plant parts is known as:
a. vaporization. b. photosynthesis. c. guttation. d. transpiration. e. abscission.
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
Contraction of a muscle requires all the motor units to be undergoing tetanic contraction.
Answer the following statement true (T) or false (F)