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Worksheets2024 Genetics, Meiosis, and Mutation
Total questions: 52
Worksheet time: 58mins
A couple has three brown-eyed children. The parents are brown-eyed (Bb). The allele for brown eyes is dominant over the allele for blue eyes. They believe the fourth child they have will be blue-eyed. Which statement below explains what actually will happen?
The couple will have a blue-eyed fourth child.
The couple will have a brown-eyed fourth child.
They have a 75% chance of having a blue-eyed child.
They have a 25% chance of having a blue-eyed child.
What is the genotypic ratio of the offspring?
3 AA : 1 aa
1 AA : 3 aa
1 AA : 2 Aa : 1 aa
2 AA : 2 aa
What are the phenotype percentages of the offspring?
(A-Brown fur color; a-white fur color)
50 % Brown fur and 50% White fur
25 % Brown fur and 75% White fur
75 % Brown fur and 25% White fur
0% Brown fur and 100% White fur
A red flowered plant (RR) is crossed with a white flowered plant (WW). The gene for petal color in these plants expresses incomplete dominance. What percentage of the offspring will have pink (RW) flowers?
0%
25%
50%
100%
The hair form gene shows incomplete dominance. Straight hair (SS) is dominant, curly hair (CC) is recessive, and wavy hair (SC) is heterozygous. Mr. and Mrs. Anderson both have wavy hair (SC). What percentage of their children will also have wavy hair (SC)?
25%
50%
75%
100%
A father has type AB blood and the mother has type O. What percentage of their offspring would you expect to have?
Type A, 25%, Type B 25%, Type AB 25%, Type O 25%
Type A 50%, Type B 25%, Type AB 25%, Type O 50%
Type A blood 50%, Type B 50%, Type AB 0%, Type O Blood 0%
Type A blood 100%
A cell has 10 chromosomes. It undergoes mitosis. How many chromosomes will each of the new cells have?
5
10
15
20
In a population of caterpillars, lime-green color with black spots is dominant (L) over lime-green color with no black spots (l). Which of the following results below would be expected from a cross of two heterozygous parents for this trait? Plug into a punnett square on scratch paper.
100% Ll
50% Ll, 25% LL, 25% ll
50% Ll, 50% ll
75% LL, 25% Ll
What effect does crossing over has in terms of traits of offspring?
Results in identical traits of offsprings.
Causes variation in the traits of offsprings.
It really does nothing to the traits of offspring.
CROSSING OVER INCREASES
LIFE SPAN
GENETIC VARIATION
THE NUMBER OF OFF-SPRING
ALL ARE TRUE
What is the genotype of individual IV – 2?
HH
HY
hh
Yh
What is the genotype of the mother? Hint Draw a punnett square
BB
bb
Bb
BB or Bb
A change in a gene, group of genes or chromosome that results in a change in the proteins
Replication
Mutations
Translation
Transcription
A point mutation where one nucleotide base replaces an original nucleotide base
Inversion Mutation
Chromosomal Mutation
Translocation
Substitution Mutation
A nucleotide base is inserted or deleted shifting the entire DNA sequence. Entire protein will be changed.
Substitution Mutation
Silent Mutation
Frameshift Mutation
Translocation
ATTTGAGCC- Original
ATTGAGCC - Mutated
The example above is an example of a
Insertion- Frameshift
Deletion- Substitution
Deletion -Frameshift
All of the above
Which mutation will cause translation to stop?
Mutations 1 and 3 only
Mutation 1 only
Mutation 2 only
Muations 1, 2, 3
What molecule is made during transcription?
DNA
tRNA
ATP
mRNA
What is the purpose of this process?
Preserving genetic information for future generations
Deleting the information in the sequence produced from the DNA template
Transcribing information in the DNA sequence for use by the cell
Producing more nucleotides for the DNA sequence
The mRNA strand is complementary to the DNA strand; however, uracil instead of thymine is paired with adenine.
True
False
Cell differentiate because...
they contain lipids
they clump together
they metabolize sugars rapidly
they have specific genes activated
What is the role of mRNA?
make energy
create bond to form biomolecules
produce sugars that help DNA replicate
provide information to make proteins
Transcribe and Translate the following DNA: TCC AAT GGC
Arginine-Leucine-Proline
Tryptophan-Phenylalanine-Leucine
Serine-Leucine-Proline
Tryptophan-Phenylalanine-Leucine
What molecule is made during transcription?
DNA
tRNA
ATP
mRNA
How does the insertion mutation affect the DNA?
Nitrogen bases are added
Nitrogen bases are exchanged
Nitrogen bases are damaged
Nitrogen bases are deleted
What type of mutation is depicted in the sequence?
insertion
deletion
substitution
None
What type of mutation occurred?
insertion
deletion
substitution
Which of these mutations most likely results in the mutated hemoglobin gene?
insertion
deletion
duplication
substitution
Convert the mRNA to a protein
Val, Lys, Phe, Gly, Ser
Met, Asp, Phe, Ala, Arg
Met, Val, Lys, Arg, Gln, Ser
Ile, Gln, Lys, Asp, Gly, Leu, Ser
What process is depicted in the picture?
Transcription
Translation
Replication
What is the purpose of this process?
To replicate the DNA of an organism before cell division
To assemble nucleotide in an mRNA chain along a DNA template
To synthesize amino acids used to unzip strands of DNA and copy the genetic code
To translate the genetic code into a specific sequence of amino acids
An illustration of how a particular DNA mutation will most likely affect the polypeptide produced is shown. What type of mutation is illustrated?
Insertion
Deletion
Substitution
Translocation
Which of the following is the direct result of an error in the transcription of a DNA nucleotide?
The nuclear membrane is ruptured
Amino acids do not bond to tRNA
A codon sequence is incorrect
Transportation of mRNA does not occur
Which of these changes to DNA triplet (GCT) will affect the protein produced?
GCC
TCT
TCC
TAT
How does the insertion mutation affect the DNA?
Nitrogen bases are added
Nitrogen bases are exchanged
Nitrogen bases are damaged
Nitrogen bases are deleted
The table shows a DNA sequence and three types of mutations that can change the DNA sequence.
Which mutation will cause translation to stop?
Mutation 1 and 3 only
Mutation 1 only
Mutation 2 only
Mutations 1, 2, and 3
The model shows a mutation to a partial sequence of bases in a gene. Which type of mutation does the model demonstrate?
Insertion
Deletion
Substitution
Translocation
Human bone, muscle, and nerve cells all contain the same number of chromosomes with the same complement of genes. What enables these cells to perform specialized activities?
The ability of some cells to remove unnecessary DNA sequences
The regulation of gene expression within each cell type
The mutation of genes within each cell type
The use of different methods of cell division
The arctic fox inhabits northern areas of North America. The same artic fox is shown in the drawing at different times of the year. What causes the change in fur color?
The alleles for fur color change as the arctic fox grows older.
Gene expression for fur color is regulated by latitude
The arctic fox has two traits for fur color that are determined at birth
Gene expression for fur color is regulated by temperature
What process is depicted in the picture?
Transcription
Translation
Replication
What is the purpose of this process?
To replicate the DNA of an organism before cell division
To assemble nucleotide in an mRNA chain along a DNA template
To synthesize amino acids used to unzip strands of DNA and copy the genetic code
To translate the genetic code into a specific sequence of amino acids
The arctic fox inhabits northern areas of North America. The same artic fox is shown in the drawing at different times of the year. What causes the change in fur color?
The alleles for fur color change as the arctic fox grows older.
Gene expression for fur color is regulated by latitude
The arctic fox has two traits for fur color that are determined at birth
Gene expression for fur color is regulated by temperature
The --------------------- cells undergo Mitosis while the --------- undergo Meiosis
(A) Somatic or body ; Gametes
(B) Gametes; Somatic or body cells
(C) Gametes; Gametes
(D) Somatic or Body cells; Somatic or Body cells
Meiosis results in ------------ While Mitosis resuls in ---------
(A) 2 haploid daughter cells and 2 haploid daughter cells
(B) 4 haploid daughter cells and 2 diploid daughter cells
(C) 2 diploid daughter cells and 4 haploid daughter cells
(D) 4 diploid daugther cells and 2 haloid daughter cells
Based off this punnett square, what fraction of the offspring will have wrinkled, yellow seeds?
9/16
3/16
1/16
16/16
Mice have two unlinked allele pairs that affect fur color. The table shows how allele pairs affect fur color. The term "agouti" describes fur with pigmentation that changes in each hair from the shaft to the tip, giving the fur a banded appearance. Mice with the aa allele pair ware albino, regardless of the second allele-pair combination. What is the probability of albinism in the offspring of a cross between two mice with AaBb alleles?
1/16
3/16
4/16
9/16
