Question 1

Reading Comprehension

Passage:

Regular exercise helps maintain bone density and muscle strength. Weight-bearing activities such as walking

and resistance training are especially important in preventing osteoporosis as people age.

Which activity mentioned in the passage helps prevent bone loss?

Options :

A : Stretching exercises

B : Swimming

C : Walking

D : Meditation

Answer: C

Question 2

What is the result of crossing over during meiosis?

Options :

A : Homologous pairs of chromosomes have exchanged segments of their DNA.

B : Non-sister chromatids of homologous pairs of chromosomes have formed a chiasmata.

C : Members of homologous pairs of chromosomes have lined up along the metaphase plate.

D : Homologous pairs of chromosomes have been randomly assorted along the metaphase plate.

Answer: A

Question 3

According to the Centers for Disease Control and Prevention (CDC), approximately 7% of children and

adolescents ages 6 to 19 in the United States have a high total cholesterol. If 120,000 children and adolescents

in that age range were sampled, approximately how many of them would have a normal total cholesterol?

Options :

A : 8,400

B : 113,000

C : 84,000

D : 111,600

Answer: D

Question 4

Which fraction is equal to 0.04?

Options :

A : 1/4

B : 2/5

C : 2/50

D : 2/500

Answer: C

Question 5

Reading Comprehension

Passage:

Hand hygiene is one of the most effective ways to prevent the spread of infection. Washing hands with soap

and water removes many harmful microorganisms. When soap and water are not available, alcohol-based

hand sanitizers can reduce the number of germs, though they are not effective against all pathogens.

Which statement is best supported by the passage?

Options :

A : Hand sanitizers eliminate all microorganisms

B : Soap and water are unnecessary if sanitizer is available

C : Handwashing helps reduce the spread of infection

D : Microorganisms cannot survive on hands

Answer: C

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