DNA Replication
DNA is which macromolecule
nucleic acid
what is the 1st step to DNA Replication
Topoisomerase un-supercoils
a set of 3 nucleotides that code for a specific amino acid
codon
A cross between two heterozygous individuals (Aa × Aa) produces this phenotypic ratio under complete dominance.
3:1
This is the chromosome number of human somatic cells.
46
subunit that makes up a nucleic acid
nucleotide
the step of protein synthesis that occurs on ribosomes
translation
During protein synthesis what does mRNA do?
delivers DNA's instructions for making proteins to ribosomes
This cellular organelle modifies, sorts, and packages proteins after translation.
Golgi apparatus
Nuclear membranes reform and chromosomes begin to uncoil in this phase.
Telophase
Which of the nitrogen bases is in RNA, but not DNA
uracil
Which enzyme removes primers?
Exonuclease
where does transcription take place?
nucleus
A mutation that does NOT change the shape of the protein is called:
A Silent Mutation
What is CRISPR/Cas9?
A "cutting enzyme" combined with mRNA used to edit specific sequences of DNA
what connects the nitrogen bases together (A=T, C=G)
hydrogen bonds
During what phase of the cell cycle does DNA Replication occur?
S-Phase
How many amino acids are coded for by the strand of mRNA shown here? Assume the reading frame begins with the first nucleotide. A U G C A G
2
tRNA brings amino acids to the
ribosome
This stage of meiosis includes crossing over.
Prophase 1
In humans where does DNA replication take place
nucleus
What is the complementary strand for ATGCGCCTAATG
TACGCGGATTAC
This bond forms between amino acids during translation.
Peptide bond
If nondisjunction occurs during Anaphase I, this will be true of all four resulting gametes.
all gametes will have an abnormal number of chromosomes (aneuploidy)
This phase separates sister chromatids in meiosis.
Anaphase 2