Bio 110 Final: Chapter 16

Beschreibung

Quiz am Bio 110 Final: Chapter 16, erstellt von Christina Marshall am 13/12/2017.
Christina Marshall
Quiz von Christina Marshall, aktualisiert more than 1 year ago
Christina Marshall
Erstellt von Christina Marshall vor mehr als 6 Jahre
4
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Zusammenfassung der Ressource

Frage 1

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

Frage 2

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

Frage 3

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

Frage 4

Frage
Which of Mendel's laws cannot be observed in a single-factor cross?
Antworten
  • segregation
  • dominance/recessiveness
  • independent assortment
  • codominance
  • All of the above can be observed in a single-factor cross

Frage 5

Frage
During a ______________ cross, an individual with the dominant phenotype and unknown genotype is crossed with a _____________ individual to determine the unknown genotype.
Antworten
  • single-factor, homozygous recessive
  • two-factor, heterozygous
  • test, homozygous dominant
  • single-factor, homozygous dominant
  • Test, homozygous recessive

Frage 6

Frage
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)
Antworten
  • 100%
  • 75%
  • 50%
  • 25%
  • 0%

Frage 7

Frage
A gene that affects more than one trait is said to be
Antworten
  • Dominant
  • Wild-type
  • Dihybrid
  • Pleiotropic
  • Heterozygous

Frage 8

Frage
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
Antworten
  • simple Mendelian
  • X-linked
  • codominance
  • incomplete dominance
  • pleiotropy

Frage 9

Frage
Genes located on a sex chromosomes are said to be
Antworten
  • X-linked
  • Dominant
  • Hemizygous
  • Sex-linked
  • autosomal

Frage 10

Frage
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?
Antworten
  • 1
  • 1/4
  • 1/16
  • 1/32
  • 0
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