Biology Exploring Study Set 1

Biology

Quiz 9 :

The Chromosomal Basis of Mendelian Inheritance

Quiz 9 :

The Chromosomal Basis of Mendelian Inheritance

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Which of the following is one of Mendel's three hypotheses for explaining his observations?
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A

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Suppose your mother has albinism, which is a recessive trait. Suppose also that your father has cystic fibrosis, which is also caused by a recessive trait. And, you learn that your father-in-law has albinism and cystic fibrosis. What are the odds that your first child will have both albinism and cystic fibrosis?
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D

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Suppose that your mother and father are both healthy but carry the allele for cystic fibrosis, which is caused by a recessive allele. What are the odds of you having at least one allele for the disorder?
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C

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Mendel selected seven traits in pea plants to study. Why were his results relatively easy to interpret, even though he was examining seven distinct traits?
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Which of the following shows an F1 monohybrid cross?
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Suppose that both of your parents have Huntington's disease, which is caused by a dominant allele, and are both heterozygous for the disease. What are the odds of you having the disorder?
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Suppose that your mother has albinism, which is a recessive trait. Also suppose your father has cystic fibrosis, which is also caused by a recessive trait. And you learn that your father-in-law has albinism and cystic fibrosis. What are the odds that your first child will have either albinism or cystic fibrosis, but NOT both?
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Suppose that R is the dominant allele for a round pea, and r is the recessive allele for a wrinkled pea. Suppose also that you cross plants having round peas with plants having wrinkled peas. Which of the following is the most likely result?
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Suppose that your father is heterozygous for sickle cell disease. Suppose also that you know your mom has two "good" alleles. What is the probability that you will have the disorder and/or carry the "bad" allele and be able to pass it on to your children?
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According to the blending theory of inheritance that predominated before 1900, what colour of progeny would result from the mating of a white flower and a red flower?
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Suppose that your mother and father both have cystic fibrosis, which is caused by a recessive allele. What are the odds of you having cystic fibrosis?
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Suppose that your parents are both heterozygous for sickle cell disease. What is the probability that you will have the disorder?
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Suppose that your mother and father both have cystic fibrosis, which is caused by a recessive allele. What are the odds of you having only one allele for the disorder?
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Gregor Mendel was trained in many academic disciplines. Which two were the most important to the development of his genetic theories?
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Suppose that your father is heterozygous for a recessive disorder. Also suppose that you know your mom has two "good" alleles. What is the probability that you will have the disorder?
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Which of the following best identifies the "White Bear" in Northern British Columbia?
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Mendel studied what he called characters and traits. What terms do we use today that have the same meaning?
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Suppose your mother has cystic fibrosis, which is caused by a recessive allele, but your father has a normal phenotype. However, all of your father's siblings have cystic fibrosis. What are the odds of you inheriting the disease?
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Suppose that at least one of your parents has Huntington's disease, which is caused by a dominant allele. What are the odds of you inheriting the disorder?
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Suppose that purple is dominant in pea plants. What will be the result of a cross between P generation purple and white plants?
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