Chapters 9-16 cumulative for final

Last update by mayurcooled on 04/23/2014
734617 People have viewed this Quiz
  • Share

Which of the following statements is true of linkage?

A) Linked genes are found on different chromosomes.

B) The observed frequency of recombination of two genes that are far apart from each other has a maximum value of 100%.

C) The closer two genes are on a chromosome, the lower the probability that a crossover will occur between them.

D) Crossing over occurs during prophase II of meiosis.

E) All of the traits that Mendel studied–seed color, pod shape, flower color, and others–are due

to genes linked on the same chromosome.

Answer:
C) The closer two genes are on a chromosome, the lower the probability that a crossover will occur between them.

View Chapters 9-16 cumulative for final as Flashcard Deck

Related Quiz Content
  • smiraclelynch

    What does a frequency of recombination of 50% indicate?

    A) The two genes are likely to be located on different chromosomes.

    B) All of the offspring have combinations of traits that match one of the two parents.

    C) Abnormal meiosis has occurred.

    D) Independent assortment is hindered.

    E) The genes are located on sex chromosomes.

    A) The two genes are likely to be located on different chromosomes.

  • smiraclelynch

    Recombination between linked genes comes about for what reason?

    A) When genes are linked they always ʺtravelʺ together at anaphase.

    B) Nonrecombinant chromosomes break and then re-join with one another.
    C) Mutation on one homolog is different from that on the other homolog.
    D) Independent assortment sometimes fails because Mendel had not calculated appropriately.

    E) Crossovers between these genes result in chromosomal exchange.

    E) Crossovers between these genes result in chromosomal exchange.

  • smiraclelynch

    A sexually reproducing animal has two unlinked genes, one for head shape ( H) and one for tail 15) length (T). Its genotype is HhTt. Which of the following genotypes is possible in a gamete from this organism?

    A) HhTt B) tt C) Hh

    D) HT E) T

    D) HT
  • smiraclelynch

    What is the source of the extra chromosome 21 in an individual with Down syndrome?

    A) nondisjunction in the father only

    B) nondisjunction or translocation in either parent

    C) nondisjunction in the mother only
    D) duplication of the chromosome

    E) It is impossible to detect with current technology.

    B) nondisjunction or translocation in either parent
  • smiraclelynch

    Abnormal chromosomes are frequently found in malignant tumors. Errors such as translocations may place a gene in close proximity to different control regions. Which of the following might then
    occur to make the cancer worse?

    A) death of the cancer cells in the tumor

    B) a decrease in mitotic frequency

    C) expression of inappropriate gene products

    D) an increase in nondisjunction

    E) sensitivity of the immune system

    C) expression of inappropriate gene products
  • smiraclelynch

    Mendel accounted for the observation that traits which had disappeared in the F1 generation reappeared in the F2 generation by proposing that

    A) the mechanism controlling the appearance of traits was different between the F1 and the F2

    plants.

    B) new mutations were frequently generated in the F2 progeny, ʺreinventingʺ traits that had

    been lost in the F1.

    C) the traits were lost in the F1 due to dominance of the parental traits.

    D) traits can be dominant or recessive, and the recessive traits were obscured by the dominant ones in the F1.

    E) members of the F1 generation had only one allele for each trait, but members of the F2 had two alleles for each trait.

    B

  • smiraclelynch

    Mendelʹs observation of the segregation of alleles in gamete formation has its basis in which of the following phases of cell division?

    A) anaphase II of meiosis B) anaphase I of meiosis C) prophase I of meiosis

    D) anaphase of mitosis
    E) metaphase I of meiosis

    B) anaphase I of meiosis
  • smiraclelynch
    in redox reactions the loss of an electron from one substance is called
    oxidation
  • smiraclelynch
    in redox reactions the addition of electrons to a substance is called
    reduction
  • smiraclelynch
    the summary equation fro cellular respiration is _
    C6H12O6 + 6CO2 becomes 6CO2+6H2O
  • smiraclelynch
    the harvesting of energy from glucose by cellular respiration is a cumulative function of these three metabolic stages
    glycolysis, pyruvate oxidation and the citric acid cycle, oxidative phosphorylation(electron transport and chemiosmosis