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WorksheetsMutations and Biotechnology
Total questions: 15
Worksheet time: 16mins
Where do mutations occur?
DNA and RNA
DNA only
RNA only
mRNA and tRNA
What type of gene mutation has occurred here? * Original: T-G-A-C-C-A Mutated: T-G-A-C-C-A-A
point nonsense
frameshift insertion
point missense
frameshift deletion
point silent
What type of mutation involves substituting a DNA base with a different base but still forms the same protein?
frameshift insertion
point missense
point nonsense
point silent
frameshift deletion
What type of gene mutation has occurred here? Normal: AGA-TTC-ATA-GCG Mutant: AGA-TTC-ATA-GC
point silent
point nonsense
point missense
frameshift insertion
frameshift deletion
Which best describes a genetic mutation to a sequence of DNA that changes the way the sequence is read?
silent
substitution
frameshift
nonsense
Which table correctly matches the type of mutation to the effect each has on an organism's traits? Mark only one oval.
Option 1
Option 2
Option 3
Option 4
Which suspect left the blood stain?
Bob
Sue
John
Lisa
What beneficial impact could genetically engineered crops have on society?
They increase genetic variation in crops.
They could create more efficient production, as crops could be altered to need no light.
They decrease food allergies from crops.
They could create a more stable food supply, as crops could be altered to resist droughts.
Which correctly identifies each type of mutation in the diagram? The diagram shows three types of mutations.
W - deletion
X - insertion
Y - substitution
W - insertion
X - substitution
Y - deletion
W - substitution
X -deletion
Y - insertion
W - insertion
X - deletion
Y -substitution
A gene found in naturally occurring soil bacterium, Bacillus thuringiensis (Bt), contains a protein that kills certain insects. Scientists have genetically modified certain organisms such as corn, potatoes, and cotton by introducing the Bt gene into their DNA in order for these plants to have this desired trait. Which describes a benefit of this technology?
Farmers can produce more nutritional crops.
Farmers can use less insecticides on their crops.
Farmers can reduce the amount of fertilizers they apply to the soil for their crops.
Farmers can reduce the amount of land needed to grow their crops.
What is the primary reason for using gene editing techniques to modify crops?
To make the crops grow faster.
To make the crops taste better.
To make the crops resistant to pests and diseases.
To change the color of the crops.
Which of the following best describes the role of mRNA in the process of gene expression?
It replicates the DNA in the nucleus.
It carries amino acids to the ribosome.
It serves as a template for protein synthesis.
It modifies the DNA structure.
How does the process of genetic engineering differ from traditional breeding techniques?
Genetic engineering involves introducing specific genes from any species directly into the genome of the plant or animal.
Traditional breeding techniques can produce results faster than genetic engineering.
Genetic engineering does not allow for the introduction of new traits into organisms.
Traditional breeding techniques involve directly modifying the DNA of the organism.
What is the effect of a nonsense mutation in a gene?
It changes a single nucleotide, but does not affect the protein produced.
It introduces a premature stop codon, leading to a truncated, nonfunctional protein.
It results in the insertion of a completely different amino acid in the protein.
It has no effect on the gene or the protein produced.
How can mutations be beneficial to an organism?
By causing diseases that may lead to immunity.
By introducing new traits that can be better in certain environments.
By removing essential genes necessary for survival.
By preventing the organism from reproducing.
