Living Environment Lab Practice Questions Part 2

One function of gel electrophoresis is to

• separate DNA fragments
• cut DNA
• recombine DNA
• extract DNA

The amino acids bond together to form which type of complex molecule?

• protein

• starch

• fat

• sugar

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Which two living species would be expected to have the most similar proteins?

• A and C

• B and C

• E and F

• H and M

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This setup is part of the technique known as

• biological staining

• electrophoresis

• dissection

• chromatography

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Certain chemicals, such as cytochrome C, are found within cells of all living organisms. The biochemical structure of cytochrome C in ground finches and in tree finches is very similar. This suggests that tree finches and ground finches have

• evolved at the same time

• identical DNA

• a common ancestor

• the same nesting site

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This procedure is used to

• separate molecules in a liquid mixture

• detect glucose in a solution

• determine the rate of photosynthesis in plants

• examine the gene sequences of organisms

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DNA samples can be separated according to size using the technique of

• replication

• electrophoresis

• chromatography

• dissection

Which of the following statements best explains the variation in the beaks of these four species?

• Over time, an abundance of seeds for food led to increased differences between the species.

• Competition for limited food resources led to selection for different traits.

• Over time, an abundance of seeds for food led to increased similarities between the species.

• Competition for limited food resources led to selection for similar traits.

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How would the introduction of another species of seed-eating ground finch to the island most likely influence the medium ground finch in the given situation?

• The medium ground finch would become a parasite of the introduced species.

• The finches would not compete, since they both eat seeds.

• The finches would interbreed and produce a new species of finch.

• The medium ground finch would face increased competition for seeds

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Warbler finches are classified as

• producers

• decomposers

• carnivores

• herbivores

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