Pregunta 1
Pregunta
Based on Mendel's experimental crosses, what is the expected F2 phenotype ratio of a single factor cross?
Respuesta
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1:2:1
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2:1
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3:1
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9:3:3:1
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4:1
Pregunta 2
Pregunta
During which phase of nuclear division does Mendel's law of segregation physically occur?
Respuesta
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Mitosis
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Meiosis I
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Meiosis II
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All of the above
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b and c only
Pregunta 3
Pregunta
An individual that has two different alleles of a particular gene is said to be
Respuesta
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Dihybrid
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Recessive
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Homozygous
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Heterozygous
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Hemizygous
Pregunta 4
Pregunta
Which of Mendel's laws cannot be observed in a single-factor cross?
Pregunta 5
Pregunta
During a ______________ cross, an individual with the dominant phenotype and unknown genotype is crossed with a _____________ individual to determine the unknown genotype.
Respuesta
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single-factor, homozygous recessive
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two-factor, heterozygous
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test, homozygous dominant
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single-factor, homozygous dominant
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Test, homozygous recessive
Pregunta 6
Pregunta
A woman is heterozygous for an X-linked disorder, hemophilia A. If she has a child with a man without hemophilia A, what is the probability that the child will be a male with hemophilia A? (Note: The child could be a male or a female)
Pregunta 7
Pregunta
A gene that affects more than one trait is said to be
Respuesta
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Dominant
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Wild-type
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Dihybrid
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Pleiotropic
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Heterozygous
Pregunta 8
Pregunta
A hypothetical flowering plant species produces blue, light blue, and white flowers. To determine the inheritance pattern, the following crosses were conducted with the results indicated:
blue x blue --> all blue
white x white --> all white
blue x white --> all light blue
Respuesta
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simple Mendelian
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X-linked
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codominance
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incomplete dominance
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pleiotropy
Pregunta 9
Pregunta
Genes located on a sex chromosomes are said to be
Respuesta
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X-linked
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Dominant
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Hemizygous
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Sex-linked
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autosomal
Pregunta 10
Pregunta
A man and a woman are both heterozygous for the recessive allele that causes cystic fibrosis. What is the probability that their first two offspring will have the disorder?