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Lab Set Up UV Sensitive Yeast Experiment

Last updated about 2 years ago

10 Nsɛmmisa

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1.

How does UV light damage DNA?

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2.

State one reasons why yeasts are model systems to study the effects of UV light. Hint, there is more information on the next page.

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3.

What type of yeast cannot repair its DNA when exposed to UV light?

A. Wild-type Yeast

B. UV-sensitive Yeast

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7.

The yeast was spread on the plate in what type of pattern?

A. Zig-zag

B. Parallel lines

C. an X

D. A tic tac toe pattern

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4.

According to the hypothesis, what UV sensitive yeast will grow the most?

A. UV yeast that is uncovered

B. UV yeast that is covered with SPF 15

C. UV yeast that is covered with SPF 70

D. UV yeast that is fully covered

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5.

The independent variable is

A. the sunscreen applied

B. the amount of UV radiation

C. Yeast growth

D. The time that yeast was exposed to UV radiation

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6.

The dependent variable is

A. the sunscreen applied

B. the amount of UV radiation

C. Yeast growth

D. The time that yeast was exposed to UV radiation

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8.

What plates will be covered with plastic wrap.?

A. all the plates

B. the wildtype

C. the UV-sensitive plates that are getting sunscreen

D. none of the plates

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9.

What is the UV-sensitive covered plate getting covered with?

A. plastic wrap

B. plastic wrap and sunscreen

C. aluminum foil

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10.

How long were the plates exposed to UV light for?

A. 5 minutes

B. 10 minutes

C. 15 minutes

D. 20 minutes