The replication of DNA occurs during the __________ phase of interphase.
S (synthesis)
Initiation of translocation begins with a tRNA binding to a __________ on mRNA.
start codon
__________ is the process by which the DNA code of a single gene is converted into a complimentary strand of mRNA.
Transcription
Following replication of chromosomes, sister chromatids are help together by a __________.
centromere
Human chromosomes are made up of DNA and proteins called __________, which help organize the DNA and give structure to the chromosomes.
histones
Short segments of DNA that contain codes for the structure of one of more proteins are __________.
gene
Alterations in DNA, called __________, create differences between individuals and populations.
mutations
The beginning of each gene in DNA is marked by the presence of a unique base sequence called the __________.
promoter
_________ is the process by which a cell becomes different from its parent or sister cell.
Differentiation
The primary transcript that results from transcription must be modified before it can be translated; nucleotide sequences that actually form the mRNA ad contain the genetic information are __________.
exons
Anticodons are located on __________.
tRNA
During mitosis, the mitotic spindle forms during __________.
prophase
Meiosis in females is not complete until __________ occurs.
fertilization
The __________ checkpoint checks to make sure the DNA was replicated correctly and that the cell is large enough.
G2
A __________ forms during cytokinesis as contractile filaments in the cell tighten.