What is the first step in DNA replication called and what happens?
What is Unwinding. It's when the two parent DNA strands separate.
100
what is the purpose of RNA
transcribe genetic information from DNA, carries genetic information to the ribosome
100
what is the monomer of a protein
amino acid
100
If the DNA strand is TTAGCC, how many codons is that?
What is 2.
200
what holds base pairs together?
Hydrogen bonds
200
What is the second step in DNA replication called and what happens?
What is Base Pairing. The enzyme adds new nucleotides from the surrounding area to make a new daughter DNA strand for each of the parent DNA strands
200
what is one difference between RNA and DNA?
U instead of T, one strand instead of two
200
How does DNA code for proteins?
Their code is used to create mRNA which is used to create a protein.
200
If the DNA strand is TAGGCT, what is the complementary mRNA strand?
What is AUCCGA
300
These are the two enzymes that are involved with DNA replication.
helicase and DNA polymerase
300
_?_ is the enzyme that complementary base pairs free-floating nucleotides with the exposed bases on the 2 strands of "unzipped" DNA. If one of the strands of DNA has the following sequence, what nucleotides would base pair with it? GGCAAT
DNA polymerase, CCGTTA
300
How many strands is RNA?
one
300
what role do ribosomes play in translation?
binds to the mRNA that is being translated, and to tRNA molecules. brings everything together properly in the right order
300
If the mRNA is AUCCGA, what two amino acids does that code for?
What is Isoleucine and Arginine.
400
During replication _?_ stand(s) of DNA serve as a template. Where does replication ALWAYS take place? Why?
both (two); nucleus; DNA cannot leave the nucleus
400
During replication _?_ stand(s) of DNA serve as a template. Where does replication ALWAYS take place? Why?
both; nucleus; DNA cannot leave
400
what does the central dogma "DNA - > RNA - > protein" mean?
genetic information is stored in the DNA. it must be changed to RNA to be made into a protein
400
What is step 2 in protein synthesis and where does it happen in the cell?
What is Translation and it happens through the cytoplasm in a ribosome.
400
The sequence of three on the a tRNA molecule that is complementary to the sequence of three on the mRNA molecule is called a(n) _?_; If the tRNA sequence is AGA, what is the mRNA sequence?
anticodon; UCU
500
What type of bonds hold the nitrogen bases together in DNA?
What is hydrogen bonds.
500
What is the significance of DNA replication in relation to the cell cycle?
It occurs in the S phase of Interphase and allows for the daughter cells of mitosis to have identical DNA.
500
Analogy: sugar is to carbohydrate asRNA is to ______________________
nucleic acid
500
If the nitrogen base sequence of a tRNA molecule is A G U, what does the sequence on the DNA strand look like?
AGT
500
Put the following in correct order from DNA to Protein.... protein, mRNA,tRNA,DNA