biology quiz

Question 1 (5 points)

A karyotype ______.

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Question 2 (5 points)

At which stage of mitosis are distinct chromatids visible and moving towards the opposite poles of the cell?

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Question 3 (5 points)

Mitosis in humans usually results in the formation of _____.

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All of the following are characteristics of cancer cells EXCEPT _____.

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Question 5 (5 points)

What stage does cytokinesis generally overlap with in the typical cell cycle?

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Question 6 (5 points)

An important result of meiosis is that _____.

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Question 5 (5 points)

What stage does cytokinesis generally overlap with in the typical cell cycle?

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Question 6 (5 points)

An important result of meiosis is that _____.

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Question 10 (5 points)

For anaphase to begin, which of the following must occur?

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Question 11 (5 points)

Spindle microtubules attach to kinetochores during this phase of mitosis.

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Question 12 (5 points)

Four of the five answers listed below are related by a common phase of mitosis. Select the exception.

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Question 13 (5 points)

A woman is found to have 47 chromosomes, including three X chromosomes. Which of the following describes her expected phenotype?

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Question 14 (5 points)

Which of the following is an example of polygenic inheritance?

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Question 15 (5 points)

Why did the F1 offspring of Mendel's classic pea cross always look like one of the two parental varieties?

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Question 16 (5 points)

Use the following information to answer the questions below.

Tallness (T) in snapdragons is dominant to dwarfness (t), while red (R) flower color is dominant to white (r). The heterozygous condition results in pink (Rr) flower color.

A dwarf, red snapdragon is crossed with a plant homozygous for tallness and white flowers. What are the genotype and phenotype of the F1 individuals?

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Question 17 (5 points)

National Basketball Association (NBA) scientists have identified the gene for superior athletic ability.  The allele "A" represents the dominant form of the gene, while the allele "a" represents the recessive form of the gene.  The scientists find that the superior athletic ability gene is optimally expressed in individuals who possess the homozygous dominant form. 

If Michael Jordan, who has the Aa genotype, has a child with a woman who has the aa genotype, what are the chances that his child will inherit the optimal superior athletic ability genotype?

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Question 18 (5 points)

There is evidence that a certain color in cats is sex-linked. Yellow is recessive to black.   A heterozygous condition results in tortoise shell or calico color. A calico cat has a litter of 8 kittens: 1 yellow male, 2 black males, 2 yellow females, and 3 calico females. What was the male parents probable color?

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Question 19 (5 points)

Imagine you are performing a cross involving seed color in garden plants.  What F1 offspring would you expect if you cross true-breeding parents with green seeds with true-breeding parents with yellow seeds?

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Question 20 (5 points)

All of the genes located on a given chromosome constitute a

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