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Biology > Bio Quiz 3 > Flashcards

Bio Quiz 3 Flashcards

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1
Q

The law of segregation states that pairs of alleles

separate independently of one another during gamete formation.
None of the listed answers are correct
separate when gametes form.
are always the same.
are always different.
All of the listed answers are correct

A

separate when gametes form.

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2
Q

Which of the following is not a good reason why Pisum sativum makes an excellent subject for genetic study?

 None of the listed answers are correct
   They demonstrate complete dominance.
   They grow quickly.
  Many varieties exist.
   All of the listed answers are correct
   They require cross-pollination.
A

They require cross-pollination.

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3
Q

Sexual reproduction may have originated as a way for cells to

All of the listed answers are correct
repair damaged DNA.
None of the listed answers are correct
shuffle genetic material.
increase their population growth at a maximum rate.
produce diploid individuals.

A

repair damaged DNA.

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4
Q

The unknown genotype of an individual with a dominant phenotype can be determined using

  probability. 
  a ratio. 
  None of the listed answers are correct 
  a test cross. 
  a dihybrid cross. 
  All of the listed answers are correct
A

A test cross

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5
Q

The scientist whose studies formed the basis of modern genetics is

  None of the listed answers are correct 
  Louis Pasteur. 
  Gregor Mendel. 
  T. A. Knight. 
  Robert Hooke. 
  All of the listed answers are correct
A

Gregor Mendel.

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6
Q

If smooth peas are dominant over wrinkled peas, the allele for smooth peas should be represented as

None of the listed answers are correct
S.
s.
W.
All of the listed answers are correct
w.

A

S.

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7
Q

In his experiments on Streptococcus pneumoniae, Griffith found that

mice injected with the R bacteria died.
the S bacteria were transformed.
harmless R bacteria changed and became virulent.
All of the listed answers are correct
the capsule did not protect the bacterium.
None of the listed answers are correct

A

harmless R bacteria changed and became virulent.

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8
Q

The color of a dog’s coat is the dogs

phenotype.
pedigree.
None of the listed answers are correct
All of the listed answers are correct
genotype.
dominance.

A

phenotype

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9
Q

A ____________ is not a component of a DNA nucleotide.

  All of the listed answers are correct 
  None of the listed answers are correct 
  phosphate group 
  five-carbon sugar 
  double helix 
  nitrogen base
A

double helix

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10
Q

Hershey and Chase showed that the genetic material of the T2 bacteriophage was

  DNA helicase. 
  DNA polymerase. 
  None of the listed answers are correct 
  DNA. 
  All of the listed answers are correct
A

DNA

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11
Q

If the sequence of nucleotides on one strand of a DNA molecule is GCCATTG, the sequence on the complementary strand is

  None of the listed answers are correct 
  GGGTAAG. 
  All of the listed answers are correct 
  CGGTAAC. 
  GCCATTC. 
  CCCTAAC.
A

GCCATTC

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12
Q

Which of the following events occurs during prophase I of meiosis?

separation of chromatids to opposite poles
reduction in chromosome number
crossing-over
None of the listed answers are correct
All of the listed answers are correct
duplication of chromatids

A

Crossing-over

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13
Q

The enzymes that add complementary nucleotides during DNA replication and proofread the new DNA strand are called

  DNA polymerases. 
  nitrogen bases. 
  DNA helicases. 
  phages. 
  None of the listed answers are correct 
  All of the listed answers are correct
A

DNA polymerases

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14
Q

In humans, gametes join during the process called ________ to form a diploid zygote.

  None of the listed answers are correct 
  fertilization 
  All of the listed answers are correct 
  asexual reproduction 
  meiosis 
  crossing-over
A

fertilization

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15
Q

In plants, the sporophyte generation produces __________ spores through meiosis.

  diploid 
  mutated 
  None of the listed answers are correct 
  triploid 
  All of the listed answers are correct 
  mongoloid
A

None of the listed answers are correct

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16
Q

The offspring of true-breeding parents are called the

 None of the listed answers are correct
   dominant offspring.
   F1 generation. 
   recessive offspring.
   All of the listed answers are correct
   F2 generation.
A

F1 generation.

17
Q

James Watson and Francis Crick

  All of the listed answers are correct 
  discovered DNA replication. 
  discovered DNA polymerases. 
  None of the listed answers are correct 
  used X-ray diffraction. 
  built a structural model of DNA.
A

built a structural model of DNA.

18
Q

The random distribution of homologous chromosomes during meiosis is called

  None of the listed answers are correct 
  fission. 
  independent assortment. 
  All of the listed answers are correct 
  budding. 
  crossing over.
A

independent assortment.

19
Q

Genes are exchanged between homologous chromosomes during the process called

fertilization.
meiosis.
None of the listed answers are correct
crossing-over.
All of the listed answers are correct
telophase II.

A

crossing-over.

Biology (14 decks)

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