Question 1
Question
When an egg and sperm combine, they form a [blank_start]zygote[blank_end].
Question 2
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[blank_start]Mitosis[blank_end] is the type of cell division used to repair damaged skin.
Question 3
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A [blank_start]chromosome[blank_end] is a single strand of DNA and it's associated proteins.
Question 4
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Eight [blank_start]histones[blank_end] come together come together with a strand of DNA to make a nucleosome.
Question 5
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DNA must be in it's [blank_start]unpacked[blank_end] state in order to be used for replication.
Question 6
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[blank_start]Chromatin[blank_end] is the collection of DNA and proteins combined in the nucleus.
Question 7
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DNA replication is considered to be [blank_start]semi-conservative[blank_end].
Question 8
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The cell cycle is a sequence of events during which a cell prepares to divide [blank_start]into daughter cells[blank_end].
Question 9
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The S phase of mitosis is the event that
Question 10
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At the end of the G2 phase [blank_start]centrosomes[blank_end] form outside the nucleus along with pairs of [blank_start]centrioles[blank_end].
Question 11
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During interphase, chromatin is [blank_start]still uncondensed[blank_end].
Question 12
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Interphase contains; [blank_start]46[blank_end] chromosomes and [blank_start]92[blank_end] DNA strands.
Question 13
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Prophase contains; [blank_start]46[blank_end] chromosomes and [blank_start]92[blank_end] DNA strands.
Question 14
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Metaphase contains; [blank_start]46[blank_end] chromosomes and [blank_start]92[blank_end] DNA strands.
Question 15
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Anaphase contains; [blank_start]46[blank_end] chromosomes and [blank_start]92[blank_end] DNA strands.
Question 16
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Telephase contains; [blank_start]46[blank_end] chromosomes and [blank_start]92[blank_end] DNA strands.
Question 17
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During prophase, chromatin
Answer
-
Condenses into homologous chromosomes
-
Condenses into sister chromosomes
-
Condenses into sister chromatids
-
Condenses into DNA strands
Question 18
Question
Check off all the events that occur during prophase.
Answer
-
Nuclear envelope breaks apart
-
Chromatin condenses
-
Motor proteins "walk" along microtubules
-
Centrioles push apart to elongate the cell
-
Centrosomes move apart and start forming spindle fibers
-
Sister chromatids float in cytoplasm; attached to microfilaments
-
Chromosomes line up at central plate
Question 19
Question
What is the name of the phase where sister chromatids line up at the central plate (equator of the cell)?
Answer
-
Metaphase
-
Metaphase I
-
Metaphase II
Question 20
Question
Label the following diagram
Answer
-
S phase
-
G1 phase
-
G2 phase
-
cytokinesis
-
Mitosis
-
interphase
-
cytokinesis
-
mitosis
-
G1 phase
-
G2 phase
-
S phase
-
Interphase
-
S phase
-
G2 phase
-
G1 phase
-
Mitosis
-
Cytokinesis
-
Interphase
-
Mitotic (M) phase
-
Mitotic (M) phase
-
Mitotic (M) phase
-
S phase
-
G1 phase
-
G2 phase
-
Cytokinesis
-
Mitosis
-
Interphase
-
Mitotic (M) phase
-
S phase
-
G1 phase
-
G2 phase
-
Cytokinesis
-
Mitosis
-
Interphase
-
Mitotic (M) phase
-
S phase
-
G1 phase
-
G2 phase
-
Cytokinesis
-
Mitosis
-
Mitotic (M) phase
-
Interphase
-
S pahse
-
G1 phase
-
G2 phase
-
Cytokinesis
-
Mitosis
-
Interphase
-
Mitotic (M) phase
Question 21
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Mitosis is a form of [blank_start]asexual[blank_end] reproduction.
Question 22
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Meiosis is a form of [blank_start]sexual[blank_end] reproduction.
Question 23
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Cytokinesis is the last phase of the cell cycle.
Question 24
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Interphase is the first phase of the cell cycle.
Question 25
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What happens when a cell spends too little time in interphase?
Question 26
Question
Meiosis II is nearly identical to mitosis, except for
Answer
-
meiosis has twice the number of chromosomes as mitosis
-
mitosis has half the number of chromosomes as meiosis
-
meiosis has half the number of chromosomes as mitosis
-
mitosis has twice the number of chromosomes as meiosis
Question 27
Question
During interphase before meiosis; cells are [blank_start]diploid[blank_end] in number with [blank_start]92[blank_end] DNA strands.
After meiosis I; cells are [blank_start]haploid[blank_end] with [blank_start]46[blank_end] DNA strands.
After meiosis II; cells are [blank_start]haploid[blank_end] with [blank_start]23[blank_end] DNA strands.
Answer
-
diploid
-
92
-
haploid
-
46
-
(n)
-
23
Question 28
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Prophase I contains; [blank_start]46[blank_end] chromosomes and [blank_start]92[blank_end] DNA strands.
Question 29
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Metaphase I contains; [blank_start]46[blank_end] chromosomes and [blank_start]92[blank_end] DNA strands.
Question 30
Question
Anaphase I; contains; [blank_start]46[blank_end] chromosomes and [blank_start]92[blank_end] DNA strands.
Question 31
Question
Telophase I contains; [blank_start]46[blank_end] chromosomes and [blank_start]92[blank_end] DNA strands.
Question 32
Question
Prophase II; contains; [blank_start]46[blank_end] chromosomes and [blank_start]92[blank_end] DNA strands.
Question 33
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Metaphase II; contains; [blank_start]46[blank_end] chromosomes and [blank_start]92[blank_end] DNA strands.
Question 34
Question
Anaphase II; contains; [blank_start]46[blank_end] chromosomes and [blank_start]92[blank_end] DNA strands.
Question 35
Question
Telophase II; contains; [blank_start]46[blank_end] chromosomes and [blank_start]92[blank_end] DNA strands.
Question 36
Question
Gamete cells are [blank_start]haploid[blank_end] cells with [blank_start]23[blank_end] chromosomes.
Somatic cells are [blank_start]diploid[blank_end] cells with [blank_start]46[blank_end] chromosomes.
Question 37
Question
When do homologous chromosomes exchange genetic information?
Answer
-
Prophase
-
Prohase I
-
Prohase II
Question 38
Question
What is the name of the phase where homologous chromosomes line up at the central plate (equator of the cell)?
Answer
-
Metaphase
-
Metaphase I
-
Metaphase II
Question 39
Question
Maternal and Paternal chromosomes line up randomly are positioned [blank_start]randomly[blank_end] on either side of the equatorial plate.
Question 40
Question
At what point are homologous chromosomes considered tetrads?
Answer
-
When they are exchanging genetic information
-
When they are duplicating
-
When they are separating
-
When they are attached via spindle fibers
Question 41
Question
What key events occur during anaphase I
Answer
-
Homologous chromosomes separate to opposite poles of the cell
-
Sister chromatids separate to opposite poles of the cell
-
Daughter chromosomes separate to opposite poles of the cell
-
Spindle fibers elongate the cell
-
Spindle fibers attach to each centrioles pulling on chromosomes
-
Spindle fibers attach to each centromere pulling on chromosomes
Question 42
Question
Interphase occurs between meiosis I and meiosis II
Question 43
Question
What methods are used to treat cancer?
Answer
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Mastasis
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Chemotherapy
-
Slashing
-
Surgery
-
Poison
-
Intravenous fluid
-
Radiation
Question 44
Question
A group of interbreeding organisms of the same species.
Answer
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Population
-
Gene pool
-
Allele frequency
-
Evolution
Question 45
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All of the different genes and alleles in a population.
Answer
-
Gene pool
-
Evolution
-
Allele Frequency
-
Population
Question 46
Question
The number of copies of a specific allele relative to all the alleles for the same gene in a population.
Answer
-
Allele frequency
-
Gene pool
-
Population
-
Evolution
Question 47
Question
Evolution occurs at the population level
Question 48
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Changes in genetic characteristics of a population over time - potentially creating a new species
Question 49
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The reproductive success "fitness" of specific alleles causes [blank_start]evolution[blank_end].
Question 50
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[blank_start]Adaptation[blank_end]; features of an organism with a selective advantage.
Answer
-
Adaptation
-
Evolution
-
Natural selection
-
Mutation
Question 51
Question
Cytokinesis is the division of the [blank_start]cytoplasm[blank_end] and the [blank_start]organelles[blank_end].
Question 52
Question
In a pair of [blank_start]chromosomes[blank_end], there are two [blank_start]chromatids[blank_end] united in the center by a centromere.
[blank_start]Sister chromatid[blank_end] is only used during cell division when the structures are in an X-shape (when there are two copies connected by a centromere.
When a centromere joins two [blank_start]non-identical[blank_end] copies of a chromosome (one from each parent); they are called [blank_start]homologous chromosomes[blank_end].
Answer
-
chromosomes
-
sister chromatids
-
chromatids
-
homologous chromosomes
-
non-identical
-
chromatids
-
chromosomes
-
sister chromatids
-
homologous chromosomes
-
non-identical
-
Sister chromatid
-
chromosomes
-
chromatids
-
non-identical
-
homologous chromosomes
-
non-identical
-
chromosomes
-
chromatids
-
sister chromatid
-
homologous chromosomes
-
homologous chromosomes
-
chromosomes
-
chromatid
-
sister chromatid
-
non-identical
Question 53
Question
If nondisjunction happened in a species with 10 chromosomes; how many chromosomes would any abnormal gametes have?
Question 54
Question
Label the following diagram; mix of both meiosis and mitosis.
Answer
-
Interphase
-
Anaphase I
-
Anaphase or Anaphase II
-
Metaphase I
-
Metaphse or Metaphase II
Question 55
Question
Label the following diagram; mix of both mitosis and meiosis.
Answer
-
Cytokinesis/Telophase I
-
Cytokinesis/Telophase II
-
Prophase or prophase II
-
Prophase I
Question 56
Question
Label the following diagram
Answer
-
Sister chromatids
-
Sister chromatids.
-
Alleles
-
Centromere
-
Chromosome
-
Chromosome.
-
Homologous chromosomes
Question 57
Question
Label the following diagram.
Answer
-
Homologous chromosome
-
sister chromatid
-
Abnormal gametes
-
Normal gametes
Question 58
Question
A gene is a combination of alleles on each chromosome in a homologous pair
Question 59
Question
An allele is different forms of a specific gene.
Question 60
Question
A phenotype is the expressed form of a gene.
Question 61
Question
The term self-fertilization refers to:
Question 62
Question
The term cross-fertilization refers to:
Question 63
Question
[blank_start]Monohybrid cross[blank_end]: Mating between two organisms that only differ in one characteristic.
[blank_start]Dihybrid cross[blank_end]: Mating between two organisms that differ in more than one characteristic.
[blank_start]Test cross[blank_end]: An individual of unknown genotype is mated with a homozygous recessive individual.
Answer
-
Monohybrid cross
-
Dihybrid cross
-
Test cross
Question 64
Question
[blank_start]Codominance[blank_end]; a heterozygote individual expresses two different alleles and is neither dominant nor recessive.
[blank_start]Incomplete dominance[blank_end]; a heterogote expresses an intermediate phenotype between dominant and recessive.
Answer
-
Codominance
-
Incomplete dominance
Question 65
Question
[blank_start]Multiple alles[blank_end]; a trait that is controlled by more than two different alleles.
[blank_start]Pleiotropic genes[blank_end]; have effects on multiple seemingly unrelated traits.
[blank_start]Polygenic traits[blank_end]; controlled by two or more sets of alleles.
[blank_start]Multifactorial trais[blank_end]; controlled by two or more sets of alleles as well as environmental factors.
Answer
-
Multiple alleles
-
Pleiotropic genes
-
Polygenetic traits
-
Multifactorial traits
-
Pleiotropic genes
-
Multiple alleles
-
Polygenetic traits
-
Multifactorial traits
-
Polygenic traits
-
Multiple alleles
-
Pleiotropic traits
-
Multifactorial traits
-
Multifactorial traits
-
Multiple alleles
-
Pleiotropic genes
-
Polygenic traits
Question 66
Question
Label the following diagram.
Answer
-
Natural selection
-
Mutation
-
Genetic drift
-
Non-random mating
-
Migration
Question 67
Question
[blank_start]Mutation[blank_end]; produces new alleles which may provide a selective advantage.
[blank_start]Natural selection[blank_end]; environmental factors provide differences in reproductive success.
[blank_start]Artificial selection[blank_end]; selective breeding for individuals who only have specific desirable features.
[blank_start]Sexual selection[blank_end]; selective breeding of individuals of one sex for certain characteristics in the other sex.
Answer
-
Mutation
-
Natural selection
-
Artificial selection
-
Sexual selection
-
Natural selection
-
Mutation
-
Artificial selection
-
Sexual selection
-
Artificial selection
-
Mutation
-
Natural selection
-
Sexual selection
-
Sexual selection
-
Mutation
-
Natural selection
-
Artificial selection
Question 68
Question
Cytokinesis I; contains [blank_start]23[blank_end] chromosomes (in each cell) and [blank_start]46[blank_end] DNA strands.
Question 69
Question
Cytokinesis II; contains [blank_start]23[blank_end] chromosomes (in each cell) and [blank_start]23[blank_end] DNA strands.
Question 70
Question
Label the following diagram.
Answer
-
Directional selection
-
Disruptive selection
-
Stabilizing selection
-
One
-
Extreme
-
Intermediate
Question 71
Question
[blank_start]Founder effect[blank_end]; some members migrate to a new location while the original population remains.
[blank_start]Bottleneck effect[blank_end]; some members survive while original population is drastically reduced.
Answer
-
Founder effect
-
Bottleneck effect
Question 72
Question
[blank_start]Mutation[blank_end]; change in the nucleotide sequence.
[blank_start]Frameshift[blank_end] mutation; changes the reading frame.
[blank_start]Point[blank_end] mutation; changes one codon and therefore one amino acid.
Answer
-
Mutation
-
Point
-
Frameshift
Question 73
Question
In pea plants, spherical seeds (S) are dominant to dented seeds (s). In a genetic cross of two plants that are both heterozygous for the seed shape trait, what percentage of the offspring should have spherical seeds.
Question 74
Question
A phenotypic ratio of 3:1 in the offspring of a mating of two heterozygous organisms for spherical pea shape is expected because:
Answer
-
the alleles segregate during meiosis
-
each allele contains two mutations
-
the alleles are incompletely dominant
-
only recessive traits are scored
Question 75
Question
A genetic cross between two F1-hybrid pea plants for spherical seeds; results in what percentage of seeds expressing wrinkled (recessive) seed shape?
Question 76
Question
When true-breeding tall stem pea plants are crossed with true breeding short stem pea plants. all of the [blank_start]F1-generation[blank_end] plants, and 75% of the [blank_start]F2-generation[blank_end] plants have tall stems.
Answer
-
F1-generation
-
F2-generation
-
G1-generation
-
G2-generation
-
F2-generation
-
F1-generation
-
G1-generation
-
G2-generation
Question 77
Question
To identify the genotype of yellow-seeded pea plants as either homozygous dominant (YY) or heterozygous (Yy), you could do a test cross with plants of what genotype?
Question 78
Question
A test cross is used to determine if the genotype of a plant with the dominant phenotype is homozygous or heterozygous. If the unknown is homozygous, all of the offspring of the test cross have the __________ phenotype. If the unknown is heterozygous, half of the offspring will have the __________ phenotype.
Question 79
Question
In Mendel's experiments, if the gene for tall (T) plants was incompletely dominant over the gene for short (t) plants, what would be the result of crossing two Tt plants?
Answer
-
25% would be tall; 50% would be intermediate; 25% would be short
-
All the offspring would be intermediate
-
50% would be tall; 25% would be intermediate; 25% would be short
-
25% would be tall; 25% would be intermediate; 50% would be short
Question 80
Question
A woman with type A blood and a man with type B blood could potentially have offspring with which of the following blood types?
Answer
-
Type A
-
Type B
-
Type AB
-
Type O
-
All options are possible
Question 81
Question
What are the possible blood types of the offspring of a cross between individuals that are type AB and type O?
Answer
-
AB or O
-
A, B, or O
-
A or B
-
A, B, or AB
Question 82
Question
A genetic cross of inbred snapdragons with red flowers with inbred snapdragons with white flowers resulted in F1-hybrid offspring that all had pink flowers. When the F1 plants were self-pollinated, the resulting F2-generation plants had a phenotypic ratio of 1 red: 2 pink: 1 white. The most likely explanation is:
Answer
-
This is an example of multifactorial traits
-
This is an example of polygenetic inheritance
-
This is an example of incomplete dominance
-
This is an example of codominance