Chapter 25 Molecular Inheritance
TGT Questions
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Where on the DNA molecule does replication begin?
What does DNA Helicase do?
What is the function of mRNA?
What is an anticodon?
What is a leading strand?
What is a transposon?
What is the monomer for all nucleic acids?
DNA takes the form of a
.
Which form of RNA binds to amino acids?
List the parts of a nucleotide.
What does the term semiconservative mean?
How does damaged DNA get repaired?
How many hydrogen bonds exist between adenine and thymine?
What do ribozymes do?
A change in a single nucleotide in DNA may cause a
mutation.
What results from replication?
What happens during transcription?
What signals the start of a gene for transcription?
What is the name of the process that turns RNA codons into amino acid sequences?
Which nucleic acid is single stranded?
A change in the sequence of nitrogen bases in DNA is a
.
What is the function of ligase?
How many nucleotides would you need to code for 20 amino acids?
If the 5’ to 3’ strand is ATT, the 3’ to 5’ strand is
.
In which nucleic acid would you find ribose?
What are the three stages of transcription?
Why do trees and dogs look different?
How many hydrogen bonds join guanine and cytosine?
What kind of bond joins amino acids to one another?
What kind of bond joins nitrogen bases in DNA?
What did Avery, with his partners MacCleod and McCarty, prove?
What did Hershey and Chase prove?
In Watson and Crick’s final model, where are sugar and phosphates located?
Guanine always bonds with
.
A region of DNA that codes for a protein is known as a
.
Where in a cell can you find RNA?
What is an exon?
What is the function of a proto-oncogene?
What direction does DNA polymerase move?
What is the name of the enzyme responsible for joining sugar/phosphate groups during replication?
What did Chargaff determine about DNA?
What did Griffith determine?
How many nitrogen bases are there in a codon?
What is an Okazaki fragment?
How is the lagging strand built (continuous or fragments) and is it in the same direction as the leading
strand?
List 3 differences between RNA and DNA.
What unzips DNA during transcription?
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What happens to the mRNA during the processing that occurs directly after transcription?
What is the flow of information from a gene to a working cell component?
What is the function of a ribozyme?
What is a silent mutation?
How is post-translational control different from post-transcriptional control of gene expression?
Chapter 25 Molecular Inheritance
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Many places at the same time
Unzips the DNA molecule.
It carries patterns for protein synthesis from the nucleus to the cytoplasm.
The portion of tRNA that binds with mRNA
The 5’ to 3’ strand of DNA
A segment of DNA that can “jump” between chromosomes.
A nucleotide.
Double helix.
tRNA
5 carbon sugar, phosphate, nitrogen base
Each DNA molecule consists of one “old” strand and one “new” strand.
Repair enzymes
2
They remove introns from RNA
Point
Identical sister chromatids, 2 strands of DNA
RNA is created using a DNA pattern
Promoter.
Translation
RNA
Mutation
Joins nucleotides together on the lagging strand of DNA
60
TAA
RNA
Initiation, elongation, termination
DNA nucleotides are arranged in a different sequence.
3
Peptide bonds
Hydrogen bonds
DNA was the genetic material that transforms bacteria
That DNA and not protein are passed to one’s offspring.
On the outside of the double helix.
Cytosine
Gene
Both the nucleus and the cytoplasm.
The part of an RNA molecule that actually gets made into a protein
Encourages cell growth by triggering different phases of the cell cycle
5’-3’
DNA Polymerase
The amount of Adenine and Thymine were equal and the amount of Cytosine and Guanine are equal.
That something was being passed from 1 cell to another to cause transformation
3
Small pieces of DNA built on the lagging strand
Fragments, no
RNA has ribose, DNA has deoxyribose; RNA is single stranded, DNA double; RNA has uracil
instead of thymine
RNA polymerase
Introns are removed and the exons are spliced together, making the mRNA shorter
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DNA
RNA
protein
Removes introns from mRNA
Change in DNA still codes for the same amino acid because there are multiple codons for every
amino acid
Post translational control uses more energy