DNA Mutations Answers

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3

List four symptoms associated with cystic fibrosis.

Answer:

Persistent coughing, phlegm, frequent lung infections, and wheezing or shortness of breath.

4

What information did you include in your response?

A
salty-tasting skin
B
persistent coughing
C
phlegm
D
frequent lung infections
E
wheezing or shortness of breath
F
poor growth and/or weight gain
G
difficulty in bowel movements
H
nasal polyps
5

What type of UV light is used in tanning beds, and why is it so dangerous?

Answer:

Tanning beds primarily use UVA light, which can be more concentrated than sunlight and penetrates multiple layers of the skin. This exposure can prematurely age the skin and greatly increase the risk of skin cancer; some tanning beds also emit UVB light.

6

What information did you include in your response?

A
Tanning beds use UVA light.
B
The concentration of UVA rays from tanning beds is greater than from the Sun.
C
UVA light is dangerous because it penetrates multiple layers of the skin.
D
Some tanning beds also emit UVB light.
E
Exposure to UV light in tanning beds can age skin and greatly increase the risk of skin cancer.
8

List four symptoms associated with cystic fibrosis.

Answer:

Four symptoms associated with cystic fibrosis include salty-tasting skin, persistent coughing (often with phlegm), frequent lung infections, and poor growth or weight gain despite a good appetite.

9

What information did you include in your response?

A
Tanning beds use UVA light.
B
The concentration of UVA rays from tanning beds is greater than from the Sun.
C
UVA light is dangerous because it penetrates multiple layers of the skin.
D
Some tanning beds also emit UVB light.
E
Exposure to UV light in tanning beds can age skin and greatly increase the risk of skin cancer.
10

What type of UV light is used in tanning beds, and why is it so dangerous?

Answer:

Tanning beds primarily use UVA light, which can be more concentrated than sunlight and penetrates multiple layers of the skin. This exposure can prematurely age the skin and greatly increase the risk of skin cancer; some tanning beds also emit UVB light.

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