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Questions and Answers
The offspring produced via asexual reproduction are genetically ________ to the parents.
The offspring produced via asexual reproduction are genetically ________ to the parents.
The recessive trait is expressed in an individual when ________
The recessive trait is expressed in an individual when ________
If a cell had 18 chromosomes at the beginning of meiosis II, how many would each daughter cell have after the completion of meiosis II?
If a cell had 18 chromosomes at the beginning of meiosis II, how many would each daughter cell have after the completion of meiosis II?
In a dihybrid cross involving two autosomal traits on different chromosomes in which the parents are purebred for the opposite forms of both traits, how many of the offspring would be expected to be homozygous recessive for both traits?
In a dihybrid cross involving two autosomal traits on different chromosomes in which the parents are purebred for the opposite forms of both traits, how many of the offspring would be expected to be homozygous recessive for both traits?
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If a human diploid cell and a human haploid cell somehow managed to fuse together and not lose any of the chromosomes, how many sets of chromosomes would be inside the newly formed cell?
If a human diploid cell and a human haploid cell somehow managed to fuse together and not lose any of the chromosomes, how many sets of chromosomes would be inside the newly formed cell?
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What specifically separates during meiosis I?
What specifically separates during meiosis I?
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What are oncogenes?
What are oncogenes?
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Are there ways to prevent cancer?
Are there ways to prevent cancer?
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Hemophilia is a sex-linked, recessive genetic disorder. If a woman who was a carrier for hemophilia married a man who had the disorder, which of the following is not true?
Hemophilia is a sex-linked, recessive genetic disorder. If a woman who was a carrier for hemophilia married a man who had the disorder, which of the following is not true?
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Vector is a self-replicating DNA molecule used to transport foreign DNA into a cell
Vector is a self-replicating DNA molecule used to transport foreign DNA into a cell
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Dead or damaged cells are replaced by the process of ________.
Dead or damaged cells are replaced by the process of ________.
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Environmental factors often play a role in the final phenotypic expression of a genotype, particularly when multifactorial inheritance is involved.
Environmental factors often play a role in the final phenotypic expression of a genotype, particularly when multifactorial inheritance is involved.
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Assuming complete dominance, what is the expected ratio of phenotypes of the offspring following the cross of two heterozygotes?
Assuming complete dominance, what is the expected ratio of phenotypes of the offspring following the cross of two heterozygotes?
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A testcross is performed to determine if a specific individual is a carrier. The results generate a 50/50 ratio of phenotypes. The test subject is therefore ________
A testcross is performed to determine if a specific individual is a carrier. The results generate a 50/50 ratio of phenotypes. The test subject is therefore ________
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Males need at least one X chromosome to survive
Males need at least one X chromosome to survive
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What is a carrier?
What is a carrier?
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What type of cells do not undergo mitosis?
What type of cells do not undergo mitosis?
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Which process requires DNA to undergo duplication before it can proceed?
Which process requires DNA to undergo duplication before it can proceed?
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Which of the following mutations can help lead to cancer?
Which of the following mutations can help lead to cancer?
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Recessive disorders related to genes found on the X chromosome but not on the Y chromosome are more commonly expressed in ________
Recessive disorders related to genes found on the X chromosome but not on the Y chromosome are more commonly expressed in ________
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How many chromosomes did you inherit from your mother?
How many chromosomes did you inherit from your mother?
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Cells spend most of their lives in ________.
Cells spend most of their lives in ________.
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What specifically separates during anaphase of mitosis?
What specifically separates during anaphase of mitosis?
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A man and a woman who wish to marry, both have family histories of cystic fibrosis. As a genetic counselor, you recommend genetic tests. The results indicate they are both carriers of cystic fibrosis. They want to know what their odds are of having an affected child or normal child. You show them the possibilities by drawing a Punnett square. What do you tell them the chances are?
A man and a woman who wish to marry, both have family histories of cystic fibrosis. As a genetic counselor, you recommend genetic tests. The results indicate they are both carriers of cystic fibrosis. They want to know what their odds are of having an affected child or normal child. You show them the possibilities by drawing a Punnett square. What do you tell them the chances are?
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What process can lead to an individual having too many or two few chromosomes?
What process can lead to an individual having too many or two few chromosomes?
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The Andalusian fowl provides us with an excellent example of incomplete dominance. Homozygous fowl are either black (BB) or white (bb). Heterozygous (Bb) fowl appear “blue”.
If a homozygous black is bred with a homozygous white, the offspring will be
The Andalusian fowl provides us with an excellent example of incomplete dominance. Homozygous fowl are either black (BB) or white (bb). Heterozygous (Bb) fowl appear “blue”.
If a homozygous black is bred with a homozygous white, the offspring will be
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In humans, achondroplasia (a form of dwarfism) is dominant over typical height development. In a condition exhibiting dominant inheritance, at least one of the parents of an affected child exhibits the condition. Each child has a ______percent chance of developing the condition.
In humans, achondroplasia (a form of dwarfism) is dominant over typical height development. In a condition exhibiting dominant inheritance, at least one of the parents of an affected child exhibits the condition. Each child has a ______percent chance of developing the condition.
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Which of the following is the correct sequence of events during mitosis?
Which of the following is the correct sequence of events during mitosis?
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Evaluate this statement: crossing over is the only mechanism that creates genetic variation by creating hybrid chromosomes with new combinations of alleles.
Evaluate this statement: crossing over is the only mechanism that creates genetic variation by creating hybrid chromosomes with new combinations of alleles.
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Assuming incomplete dominance, if a homozygous red-flowered plant is crossed with a homozygous white-flowered plant, what will be the color of the offspring?
Assuming incomplete dominance, if a homozygous red-flowered plant is crossed with a homozygous white-flowered plant, what will be the color of the offspring?
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Two alleles of the same gene are always different
Two alleles of the same gene are always different
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When I say a flower is "pink," what have I described?
When I say a flower is "pink," what have I described?
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During which phase of the cell cycle are the chromosomes duplicated?
During which phase of the cell cycle are the chromosomes duplicated?
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A woman with blood type B and a man with blood type A could have children with which of the following phenotypes?
A woman with blood type B and a man with blood type A could have children with which of the following phenotypes?
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In corn plants, the gene for tall (T) plants is dominant to the one for short (t) plants, and the gene for yellow (Y) kernels is dominant to the one for white (y) kernels. If a plant is heterozygous for both of these traits, what will be the phenotypic ratio of the offspring?
In corn plants, the gene for tall (T) plants is dominant to the one for short (t) plants, and the gene for yellow (Y) kernels is dominant to the one for white (y) kernels. If a plant is heterozygous for both of these traits, what will be the phenotypic ratio of the offspring?
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Which of the following processes does not generate genetic variation during sexual reproduction?
Which of the following processes does not generate genetic variation during sexual reproduction?
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When does crossing over occur?
When does crossing over occur?
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A child born to two carriers, or heterozygous, parents has a ______% chance of displaying the mutation, ______% chance of being a carrier but not showing symptoms
A child born to two carriers, or heterozygous, parents has a ______% chance of displaying the mutation, ______% chance of being a carrier but not showing symptoms
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The Y chromosome carries a variety of genes. The X is a much smaller chromosome and has only a few genes, which are basically involved in making female reproductive organs and typical sex characteristics.
The Y chromosome carries a variety of genes. The X is a much smaller chromosome and has only a few genes, which are basically involved in making female reproductive organs and typical sex characteristics.
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Genes are located on ________.
Genes are located on ________.
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A homozygous milk chocolate is crossed with a homozygous dark chocolate. Assuming milk chocolate is dominant over dark chocolate and the traits segregate according to Mendelian genetics, which traits will be observable in the offspring?
A homozygous milk chocolate is crossed with a homozygous dark chocolate. Assuming milk chocolate is dominant over dark chocolate and the traits segregate according to Mendelian genetics, which traits will be observable in the offspring?
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Pairs of duplicated chromosomes are called
Pairs of duplicated chromosomes are called
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If the wild type DNA sequence reads THE CAT ATE THE BIG RAT, what type of mutation would change the sequence to THE CAT ATA ETH EBI GRA T?
If the wild type DNA sequence reads THE CAT ATE THE BIG RAT, what type of mutation would change the sequence to THE CAT ATA ETH EBI GRA T?
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The effect of many genes on a single character is defined as
The effect of many genes on a single character is defined as
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When proofreading and repair mechanisms fail, an error becomes a mutation, a permanent change in the DNA sequence of a cell’s chromosome
When proofreading and repair mechanisms fail, an error becomes a mutation, a permanent change in the DNA sequence of a cell’s chromosome
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A series of events from the time a cell forms until its cytoplasm divides
A series of events from the time a cell forms until its cytoplasm divides
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