14

Last update by Shanal on 11/06/2013
253889 People have viewed this Quiz
  • Share

18) Mendel was able to draw his ideas of segregation and independent assortment because of the influence of which of the following?

A) His reading and discussion of Darwin's Origin of Species

B) The understanding of particulate inheritance he learned from renowned scientists of his time

C) His discussions of heredity with his colleagues at major universities

D) His reading of the scientific literature current in the field

E) His experiments with the breeding of plants such as peas

Answer:

E) His experiments with the breeding of plants such as peas

View 14 as Flashcard Deck

Related Quiz Content
  • boydstun 3
    Answered in 14

    19) Mendel's observation of the segregation of alleles in gamete formation has its basis in which of the following phases of cell division?

    A) Prophase I of meiosis

    B) Prophase II of meiosis

    C) Metaphase I of meiosis

    D) Anaphase I of meiosis

    E) Anaphase of mitosis

    D) Anaphase I of meiosis

  • boydstun 3
    Answered in 14

    20) Mendel's second law of independent assortment has its basis in which of the following events of meiosis I?

    A) Synapsis of homologous chromosomes

    B) Crossing over

    C) Alignment of tetrads at the equator

    D) Separation of homologs at anaphase

    E) Separation of cells at telophase

    C) Alignment of tetrads at the equator

  • boydstun 3
    Answered in 14

    21) Black fur in mice (B) is dominant to brown fur (b). Short tails (T) are dominant to long tails (t). What fraction of the progeny of the cross BbTt x BBtt will have black fur and long tails?

    A) 1/16

    B) 3/16

    C) 3/8

    D) 1/2

    E) 9/16

    D) 1/2

  • boydstun 3
    Answered in 14

    22) In certain plants, tall is dominant to short. If a heterozygous plant is crossed with a homozygous tall plant, what is the probability that the offspring will be short?

    A) 1

    B) 1/2

    C) 1/4

    D) 1/6

    E) 0

    E) 0

  • boydstun 3
    Answered in 14

    23) Two true-breeding stocks of pea plants are crossed. One parent has red, axial flowers and the other has white, terminal flowers; all F1 individuals have red, axial flowers. The genes for flower color and location assort independently. If 1,000 F2 offspring resulted from the cross, approximately how many of them would you expect to have red, terminal flowers?


    A) 65

    B) 190

    C) 250

    D) 565

    E) 750

    B) 190

  • boydstun 3
    Answered in 14

    24) In a cross AaBbCc x AaBbCc, what is the probability of producing the genotype AABBCC?

    A) 1/4

    B) 1/8

    C) 1/16

    D) 1/32

    E) 1/64

    E) 1/64

  • boydstun 3
    Answered in 14

    25) Given the parents AABBCc x AabbCc, assume simple dominance and independent assortment. What proportion of the progeny will be expected to phenotypically resemble the first parent?

    A) 1/4

    B) 1/8

    C) 3/4

    D) 3/8

    E) 1

    C) 3/4

  • boydstun 3
    Answered in 14

    Labrador retrievers are black, brown, or yellow. In a cross of a black female with a brown male, results can be either all black puppies, 1/2 black to 1/2 brown puppies, or 3/4 black to 1/4 yellow puppies.

    26) These results indicate which of the following?

    A) Brown is dominant to black.

    B) Black is dominant to brown and to yellow.

    C) Yellow is dominant to black.

    D)There is incomplete dominance.

    E) Epistasis is involved.

    E) Epistasis is involved.

  • boydstun 3
    Answered in 14

    27) How many genes must be responsible for these coat colors in Labrador retrievers?

    A) 1

    B) 2

    C) 3

    D) 4

    B) 2

  • boydstun 3
    Answered in 14

    28) In one type cross of black x black, the results were as follows:

    9/16 black

    4/16 yellow

    3/16 brown

    The genotype aabb must result in which of the following?

    A) Black

    B) Brown

    C) Yellow

    D) A lethal result

    C) Yellow

  • boydstun 3
    Answered in 14

    Radish flowers may be red, purple, or white. A cross between a red-flowered plant and a white- flowered plant yields all-purple offspring. The part of the radish we eat may be oval or long, with long being the dominant characteristic.

    29) If true-breeding red long radishes are crossed with true breeding white oval radishes, the F1 will be expected to be which of the following?


    A) Red and long

    B) Red and oval

    C) White and long

    D) Purple and long

    E) Purple and oval

    D) Purple and long