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WorksheetsUnit 6 Review AP Bio
Total questions: 13
Worksheet time: 7mins
Based on the chart below, what can be understood about base pairing?
Since %C and %T are lower in each sample, both cytosine and tyrosine must be a single ring.
Since %A and %G are simiar in each sample, they must pair up on a molecule of DNA.
Since %A is the greatest in each sample, the DNA must contain a poly A tail
Since %C and %G are about the same in each sample, Cytosine and Guanine must pair up on a strand of DNA.
What process is this image showing?
Transcription
Translation
DNA replication
Alternatice splicing
What process is this image showing?
Synthesis of mRNA from 5' to 3'
Turning premRNA into mature mRNA
Synthesis of a protein
Turning mRNA into a polypeptide
What is the name of the green strand?
The antisense strand because it is being used as a template
The sense strand because it is being used as a template
the ribosomal strand because it is being used to string along amino acids
the muture mRNA because it has a G cap and Poly A tail.
When do prokaryotes perform transcription and translation?
Transcription happens first and is completely finished before translation begins due to the nucleus.
Translation occurs once the prokaryote has processed the mRNA
Translation begins first then transcription can happen.
Transcription and translation happen simultaneously.
What does a ribosome do?
Transcribe mRNA.
Synthesize amino acids.
Synthesize polypeptides
Translate tRNA
What is a polypeptide?
A chain of amino acids that will be folded into a protein.
A fully functional protein
A long message to be read by the ribosome
A taxi that carries amino acids.
If a histone is methylated, what happens to the DNA wrapped around it?
Histone methylation condenses chromatin so the DNA cannot be read.
Histone methylaton opens up the chromatin so the DNA can be read.
Histone methylatoin condenses chromatin so the DNA can be read.
Histone mehtylation opens up the chromatin so the DNA cannot be read.
Occording to this image of the lactose operon, what is the function of the repressor?
When glucose binds to the repressor, lactose cannot be metabolized.
When glucose binds to the repressor, lactose can be metabolized.
When the repressor is bound to the operator, lactose can be metabolized.
When the repressor is bound to the operator, lactose cannot be metabolized.
Which of the following is true?
Different genes can be regulated by the same transcription factor.
Different genes are each regualted by individual, unique transcription factors.
Transcription factors do not regulate genes.
Gene X codes for the transcription factor needed for Gene D.
Define a substitution mutation.
One nucleotide is framshifted and is incorrect.
One nucleotide is deleted and causes a frameshift.
One nucleotide is inserted and causes a frameshift.
One nucleotide is replaced with an incorrect nucleotide.
What is an enhancer sequence?
In eukaryotes, it is a seqence of DNA that binds to transcriptional activators that encourage RNA polymerase to make mRNA.
In prokaryotes, it is a sequence of DNA that binds to transcriptional activators that encourage RNA polymerase to make mRNA
In eukaryotes, it is a sequence of DNA that binds to transcriptional activators that block RNA polymerase.
In prokaryotes, it is a sequence of DNA that binds to transcriptional activators that block RNA polymerase.
What is a trancriptional activator?
It is a group of proteins that bind to silencer sequences of DNA. They help prokaryotic cells with differentiation.
It is a group of proteins that bind to enhancer or promotor sequences of DNA. They help prokaryotic cells with differentiation.
It is a group of proteins that bind to enhancer or promotor sequences of DNA. They help eukaryotic cells with differentiation.
It is a group of enzymes that help prep pre-mRNA to become mature mRNA.
