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WorksheetsExam 3 Review
Total questions: 25
Worksheet time: 35mins
Name the process happening at number 1 in the diagram.
DNA Replication
Translation
Mutation
Transcription
The question below refers to the image.
If the molecule portion were being transcribed, the correct sequence of lettered parts in the new molecule would be:
AGUCUA
UGTCTU
UAGUGA
AUCUGA
Match the following characteristics
DNA strand
double stranded
RNA strand
single stranded
DNA location
nucleus only
RNA location
nucleus and cytoplasm
Aspartic Acid
Histidine
Glutamine
Methionine
If mutations occur in somatic cells, they can be passed to offspring.
True
False
Which factor can affect the epigenetics?
The Himalayan rabbit's habitat has cold, snowy winters and mild summers. The body is typically covered in white fur except for the nose, feet, tail, and ears, which are covered in black fur.
A scientist shaved an area of white fur on the back of a Himalayan rabbit and placed an ice pack over the shaved area . The shaved area grew black fur.
Which of these best explains why the hair that grew back where the Ice pack was placed was black and not white?
The white hair mutated to black hair as the rabbit's body temperature decreased.
The coat color changed from white to black with the age of the rabbit.
The genes for black hair were activated by specific temperatures.
White hair only grows during certain times of the year.
DNA molecule segment is : TTACGCAAG The mutated DNA segment is TTCGCAAG. This is an example of ___ mutation.
Substitution
Deletion
Insertion
Inversion
A change in the sequence GAG to GGG would
change the amino acid from Glu to Gly
changes the amino acid from Leu to Phe
change the amino acid from Leu to STOP
does not change the amino acid
Which portion of the structure of DNA is responsible for the coding of traits?
DNA strand 1 ATTCGGAAATTT
DNA strand 2
What sequence of nitrogen bases would be found on strand 2 of the DNA model above?
ATTCGGAAATTT
GCCTAAGGGCCC
TAGCCTTAAA
TAAGCCTTTAAA
The arctic fox inhabits northern area of North America. The same arctic fox is shown in the drawing during different times of the year.
What causes this change in the fur color?
the genes for fur color change as the arctic fox grows older
gene expression for fur color is regulated by magic
the arctic fox has two traits for fur color that are determined at birth
gene expression for fur color is regulated by temperature
Use the mRNA codon chart to identify Amino Acid 1 in the given picture.
Isoleucine
Tyrosine
Methionine
Serine
What makes up the SIDES of a DNA ladder?
nitrogen bases
sugars & phosphates
genes & chromosomes
RNA
Use the codon chart to determine the amino acid sequence: (Hint: mRNA must be used to determine the AA sequence!)
ATT CGC ATC
TAA GCG TAG
AUU CGC AUC
UAA GCG UAG
tyrosine, alanine, stop
stop, alanine, tyrosine
start, arginine, methionine
Isoleucine, arginine, isoleucine
Which of the following best shows transcription?
DNA → RNA
RNA → Protein
DNA → Protein
RNA → DNA
Which of the following best shows translation?
DNA → RNA
RNA → Protein
DNA → Protein
RNA → DNA
The diagram below represents which process?
A. Transcription
B. Replication
C. Fragmentation
D. Translation
Substitution
ATC-GAG
ATC-GTG
Insertion
ATC- GAG
ATC-CGA-G
Deletion
ATC-GAG
ACG-AG
A diagram of the steps in the production of a protein is shown. Which description identifies the purpose of Step A in this process?
A. To correct mutations in the DNA sequence
B. To produce an exact copy of the DNA molecule
C. To copy the DNA of a gene sequence onto a strand of mRNA
D. To assist in the folding of a protein
