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WorksheetsAP Biology Semester 1 Review Test, #Educreator12, #Educreatord12
Total questions: 45
Worksheet time: 1hrs 4mins
In deletion mutation, a piece of a chromosome is (a) .
Identify the type of mutation illustrated.
Substitution
Deletion
Addition
Inversion
Identify the type of mutation illustrated.
Deletion
Insertion
Translocation
Nondisjunction
Identify the type of mutation illustrated.
Deletion
Inversion
Substitution
Insertion
Complete the following statement.
The backbone of the DNA is composed of _________ and _________.
(a)
A model is shown.
Which part of the DNA model is most directly associated with the coding of genetic information?
Crossing over between non-sister chromatids during meiosis is significant in heredity. This process most likely leads to (a) .
Which of the following are examples of chromosomal mutations?
Select THREE answers.
Translocation
Nondisjunction
Inversion
Substitution
Addition
Which of these shows an example of an insertion mutation?
Which statements explain how a mutation in a somatic cell is different from a mutation that occurs in gametes?
Select TWO answers.
Somatic cell mutations are generally not passed to offspring.
Gamete mutations are usually passed to offspring.
Somatic mutations occur in cells that give rise to new gamates.
Gamete mutations are expelled from the gene pool.
Somatic mutations are maintained in the gene pool.
What do you call of the division of the gametes?
(a)
Complete the following statement:
There will be (a) cells at the end of Meiosis.
What type of mutation is illustrated?
(a)
When a new mutation occurs in a somatic cell of a sexually reproducing organism, there will be (a) % percent of the individual's offspring are likely to inherit the mutation.
The model shows a mutation to a partial sequence of bases in a gene.
What type of mutation does the model demonstrate?
Insertion
Deletion
Substitution
Translocation
Exposure to the building material asbestos has been linked to certain types of cancers. Asbestos causes mutations in the p53 gene, which controls tumor suppression.
People with cancer due to asbestos exposure do not pass the mutation on to their offspring because the mutation occurred in (a) cells.
A certain mutation in the gene for hemoglobin results in the red blood cells become sticky, rigid, and irregularly shaped. These irregular shaped red blood cells block the flow of blood throughout the body. A single based mutation is responsible for these irregularly shaped blood cells.
What type of mutation is responsible for this mutated hemoglobin gene?
(a)
Which of the following correctly describe diploid and haploid chromosomes?
Select TWO answers.
Haploid has 46 chromosomes.
Haploid has 23 chromosomes
Diploid has 46 chromosomes
Diploid has 23 chromosomes
Both diploid and haploid have 23 chromosomes.
Different types of mutations can occur in the DNA. The diagram on the right represents a type of mutation.
Which statement describes the mutation in the diagram?
A base is inserted into one strand of the DNA.
A deletion of a cytosine base occurs.
A substitution occurs with the adenine base.
A silent mutation results in the insertion of a different amino acid.
Complete the following statement:
A (a) is composed of three bases.
The table on the right shows a DNA sequence and three types of mutations that can change the DNA sequence.
Which mutation will cause translation to stop?
(a)
segment is A segment of DNA produces methionine, threonine, histidine, aspartate, and glycine when translated. A substitution occurs and causes the synthesis of the segment as shown on the right.
What is the new peptide chain when the new DNA translated?
Select FOUR answers.
Methionine
Serine
Histidine
Aspartate
Proline
In 1960s, molecular biologist George Streisinger developed the strand-slippage hypothesis. Streisinger noticed that mutations occurred in areas of DNA that contained many repeated sequences. When a strand-slippage error occurs, an insertion mutation can result.
How does the insertion mutation affect the DNA?
Nitrogenous bases are added.
Nitrogenous bases are exhanged.
Nitrogenous bases are damaged.
Nitrogenous bases are deleted.
A partial sequence of bases from normal hemoglobin gene and a sequence that results in sickle-cell anemia are shown on the right.
What type of mutation is shown in this sequence?
(a)
(a) is a type of Non-mendelian genetics where there is a third phenotype shown.
Example: Red flower X White flower = Pink flower (Third Phenotype)
What are the phenotypes of the possible offspring when a heterozygous black (Bb) cow is crossed with homozygous white (bb) cow?
Select TWO correct answers.
50% Heterozygous black cow.
50% Homozygous black cow.
50% Homozygous white cow.
50% Heterozygous white cow.
100% Heterozygous black and white cows.
Look at the Punnet square.
In a crossbred between black (B) and white (W) cows, how many black and white cows are produced if the two traits are codominant?
(a)
Look at the Punnet square.
If homozygous tall plant (TT) is crossed with homozygous short plant (tt), there will be (a) % heterozygous tall plants produced from this monohybrid cross.
In domesticated dogs, hair type is controlled by two different alleles. The allele for wire hair is (H)and the allele for smooth hair is (h).
When two heterozygous dos are crossed (Hh X Hh), what percentage of the offspring is expected to be homozygous for smooth hair?
25%
0%
50%
75%
A genetic cross involving two unlinked genes is represented.
AaGG x aaGg
What are the possible genotypes of the offspring produced by the cross?
Select THREE answers.
AaGG
aaGg
aaGG
Aagg
AAGG
Some angelfish colors colors are determined by codominance. Possible phenotypes and genotypes of angelfish colors are shown on the right.
Which table shows the expected phenotypes of offspring resulting from a cross between a black angelfish and a black-lace angelfish?
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 fur a banded appearance. Mice with (aa) allele pair are albino, regardless of the second allele-pair combination.
What are the possible genotypes of the offspring based on the Punnet square on the right?
Select FOUR answers.
aaBb
AABB
AAbb
AaBb
ABab
Human blood type is determined by the A, B, and O alleles. The A and B alleles are codominant to each other and dominant over the O allele. An individual with the AO genotype and an individual with BO genotype can produce offspring with which of the following phenotypes?
Select FOUR answers.
Blood type A
Blood type B
Blood type AB
Blood type O
Blood type OA
In cattle, the allele for cloven hooves (H) is dominant over the allele for mule-foot hooves (h). The phenotype for each trait is shown in this picture on the right.
What is the probability (percentage) of cloven hooves in the offspring of parents that are heterozygous (Hh) for the trait?
(a)
Which of the following alleles will always "show-up" in the phenotype?
Dominant
Recessive
Crossing Over
Codon
What type of Non-Mendelian genetics is illustrated on the right?
(a)
When a person whose blood type is heterozygous B (BO) is paired with a person whose blood type is AB, there is (a) % chance that their offspring will have
blood type B.
When a person whose blood type is AB meets a person whose blood type is AO, what are the expected genotypes of their offspring?
Select FOUR answers.
Type AA
Type AB
Type AO
Type BO
Type OO
An autosomal recessive condition known as albinism can only show-up when the genotype shows the homozygous recessive alleles. Which of the following graphs shows a high probability of albinism when the alleles are crossed?
Note: An allele (a) represents albinism.
In cattle, the allele for black hair color (B) is dominant over the allele for red hair color (b), and the allele for lacking horns (P) is dominant over the allele for having horns (p).
When heterozygous black hair color and lacking horns (BbPp) cattle is crossed with another heterozygous black hair color and lacking horns (BbPp) cattle, how many black hair color with lacking horns will be produced?
(a)
A cellular process is shown.
What significant event results from this process?
(a)
Which diagram shows how crossing-over contributes to genetic variety during meiosis?
Human body cells have 46 chromosomes (diploid). Meiosis is a process necessary to ensure that each gamete produce from this process has (a) chromosomes (haploid).
What are the significance events that happen during Prophase I?
Select TWO answers.
Crossing-over of chromosomes.
Pairing of homologous chromosomes.
Lining-up of homologous chromosomes in the middle.
Separating sister chromatids to each end-pole of the cell.
Forming four new nuclei of gametes.
Which phase in Meiosis produces four daughter cells with 23 chromosomes in each gamete?
(a)
