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Virtual Core Biology

Trial Examination Questions
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Content Examination Questions

  1. Who was Gregor Mendel?

    1. A botanist who discovered pea plants.
    2. A priest who helped discover plant breeding.
    3. A monk who carried out plant hybridizations.
    4. A religious leader who opposed science.
    5. A scientist who carried out research into genes.

  2. Where did Mendel live and work?

    1. London
    2. Paris
    3. Prague
    4. Bonn
    5. Brno

  3. What are Mendel's "elements" now called?

    1. Chromosomes
    2. DNA molecules
    3. Proteins
    4. Genes
    5. Polypeptides

  4. Which of the following nuclotide bases are not found in DNA?

    1. Adenine
    2. Uracil
    3. Guanine
    4. Cytosine
    5. Thymine

  5. Deoxyribose is a ...

    1. protein not used in cells.
    2. lipid found in adipose cells.
    3. sugar found in DNA.
    4. simple amino acid found in polypeptides.
    5. polypeptide chain not yet complete.

  6. How many electrons are found in
    the outermost orbital of an atom of oxygen?

    1. 2
    2. 4
    3. 6
    4. 8
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Investigation Examination Questions

Abbot Napp was plagued with fuit flies on his apple trees and asked Brother Gregory to look into the problem.

Mendel found that, like his pea plants, fruit flies had phenotypic traits such as red and white eyes and black and grey bodies.

He carefully picked out two flies from Aboot Napp's trees. One was a male with a grey body and red eyes, while the other was a female also with a grey body and red eyes.

Grey Red Grey Red

Male

Female

He put them into a bottle with some pieces of apple and let them breed. The eggs hatched into grubs, the grubs ate all the apple and then turned into pupas. When the pupas hatched into the next generation of flies he counted their numbers and recorded their phenotypes. Here is what he found.

There were 216 females and 224 males; all the females had red eyes; 54 females had balck bodies; 162 females had grey bodies; 168 males had grey bodies; 56 males had black bodies; 112 males had red eyes; 112 males had white eyes; 28 males had black bodies and red eyes; 84 males had grey bodies and white eyes.

Grey Red Grey white Black white Red Black

Mendel wants you to answer the following questions about this experiment.

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  1. What is the total number of flies in the F1 generation?

    1. 216
    2. 224
    3. 440
    4. 656
    5. unkown

  2. In the female flies only, what is the ratio of those flies
    having grey bodies to those flies having black bodies?

    1. 100 percent grey
    2. 100 percent black
    3. 1:1, grey:black
    4. 3:1, grey:black
    5. 1:3, grey:black

  3. In the male flies only, what is the ratio of those flies
    having grey bodies to those flies having black bodies?

    1. 100 percent grey
    2. 100 percent black
    3. 1:1, grey:black
    4. 3:1, grey:black
    5. 1:3, grey:black

  4. In the female flies only, what is the ratio of those flies
    having red eyes to those flies having white eyes?

    1. 100 percent red
    2. 100 percent white
    3. 1:1, red:white
    4. 3:1, red:white
    5. 1:3, red:white

  5. In the male flies only, what is the ratio of those flies
    having red eyes to those flies having white eyes?

    1. 100 percent red
    2. 100 percent white
    3. 1:1, red:white
    4. 3:1, red:white
    5. 1:3, red:white

  6. How many grey bodied male flies also have red eyes?

    1. 21
    2. 42
    3. 84
    4. 168
    5. 224

  7. Why do some of the male flies have white eyes,
    but all the female flies have red eyes?

    1. white eyes are a phenotypic trait seen only in males
    2. the males were heterozygous, the females were not
    3. eye color is a sex linked trait
    4. body color is a sex linked trait
    5. neither trait is sex linked

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Science at a Distance
© 1999, 2000 Professor John Blamire