Bio 110 Final: Chapter 16

Descripción

Test sobre Bio 110 Final: Chapter 16, creado por Christina Marshall el 13/12/2017.
Christina Marshall
Test por Christina Marshall, actualizado hace más de 1 año
Christina Marshall
Creado por Christina Marshall hace casi 7 años
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Resumen del Recurso

Pregunta 1

Pregunta
Based on Mendel's experimental crosses, what is the expected F2 phenotype ratio of a single factor cross?
Respuesta
  • 1:2:1
  • 2:1
  • 3:1
  • 9:3:3:1
  • 4:1

Pregunta 2

Pregunta
During which phase of nuclear division does Mendel's law of segregation physically occur?
Respuesta
  • Mitosis
  • Meiosis I
  • Meiosis II
  • All of the above
  • b and c only

Pregunta 3

Pregunta
An individual that has two different alleles of a particular gene is said to be
Respuesta
  • Dihybrid
  • Recessive
  • Homozygous
  • Heterozygous
  • Hemizygous

Pregunta 4

Pregunta
Which of Mendel's laws cannot be observed in a single-factor cross?
Respuesta
  • segregation
  • dominance/recessiveness
  • independent assortment
  • codominance
  • All of the above can 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
  • single-factor, homozygous recessive
  • two-factor, heterozygous
  • test, homozygous dominant
  • single-factor, homozygous dominant
  • 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)
Respuesta
  • 100%
  • 75%
  • 50%
  • 25%
  • 0%

Pregunta 7

Pregunta
A gene that affects more than one trait is said to be
Respuesta
  • Dominant
  • Wild-type
  • Dihybrid
  • Pleiotropic
  • 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
  • simple Mendelian
  • X-linked
  • codominance
  • incomplete dominance
  • pleiotropy

Pregunta 9

Pregunta
Genes located on a sex chromosomes are said to be
Respuesta
  • X-linked
  • Dominant
  • Hemizygous
  • Sex-linked
  • 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?
Respuesta
  • 1
  • 1/4
  • 1/16
  • 1/32
  • 0
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