100
1) A nucleotide consists of 3 parts. Name them.
A sugar, a phosphate, and a nitrogen base.
100
How many school days (including today) until the end of Q3?
11 days
100
5) What did Chargaff conclude from his experiments?
Chargaff concluded that the amount of adenine in a cell was equal to the amount of thymine and likewise for guanine and cytosine.
100
12) Name 3 differences between DNA and RNA.
DNA is double-stranded, RNA is single-stranded
DNA uses deoxyribose sugar, RNA uses ribose sugar
DNA uses thymine(overall ATGC), RNA uses uracil(overall AUGC)
200
4) Explain why DNA replication is considered semi-conservative.
It is half conserved-one parent strand(og old strand) and one daughter strand(new strand)
200
10) The process of forming an RNA strand from a DNA strand is called ___________. Where does it occur in the cell?
transcription; in the nucleus
200
JUST FOR FUN: Name this character from "The Amazing World of Gumball":
Darwin
200
14) A triplet of mRNA nucleotides is called a(n) _____________ and on tRNA is called a(n) _____________.
codon; anticodon
300
What is the name of our Benilde director?
Dr. Jo
300
[BONUS] This segment of DNA (TGCAATGGC) needs to be transcribed. What is the resulting mRNA sequence?
ACGUUACCG
300
7) Why were Franklin’s, Avery’s and Hershey & Chase’s experiments important?
(From your Webquest)
Avery’s and Hershey and Chase’s experiments were important because they verified that DNA, not protein, carried the genetic information.
300
9) Examine this DNA strand:
The complementary strand to this is:
TGAGTTGACA
400
2) What is the purpose of histones?
Histones allow long strands of DNA to be wrapped and organized into chromosomes without tangling.
400
11) List the 3 types of RNA and the job of each.
mRNA- carries a copy of the DNA to the ribosome
tRNA- plays matchmaker with mRNA codons and correct amino acids
rRNA- makes up ribosomes where translation occurs
400
15) tRNA carries an __________ on one side and an ____________ on the other.
anticodon; amino acid
400
What is our principal's name?
Mr. MacInness
500
3) List the function of each of these enzymes:
-DNA polymerase
-Helicase
DNA polymerase adds nitrogen bases during DNA replication.
Helicase unwinds the parent DNA strands during DNA replication.
500
13) The process of creating an amino acid chain from an mRNA strand is called _____________.
Where in the cell does this occur?
translation; in the ribosomes
500
6) How did Franklin, Watson, & Crick contribute to the structure of DNA?
Franklin determined that the DNA shape was a double helix(twisted ladder)through x-ray photo and Watson & Crick made the final double helix model with bases on the inside.
500
16) How do introns and exons differ?
Introns are removed during the final processing of the mRNA,
but exons remain to be used in protein synthesis.
600
17) What makes up a nucleosome and what is the purpose of it?
Histone and DNA wrapped around it. It is an in-between step of chromatin condensing to the protected chromosome form and helps keep the DNA organized/not tangled.
600
Which genetic structure is this comic referring to?
DNA's double helix
600
18) What is a polypeptide chain and where in the process of protein synthesis would you see it being made?
Polypeptide chain is when the amino acids are linked together with peptide bonds to form a protein. This happens at the end of protein synthesis during the translation step(page 4 of notes).
600
8) When cells copy their DNA before division, this process is called ______________. Where in the cell does it occur?
DNA replication. Occurs in the nucleus.