Genetic Information – Check Test

1. A chromosome

A carries genetic information.

B controls cell respiration.

C is the site of photosynthesis.

D speeds up chemical reactions.

2. Chromosomes are found in

A cytoplasm.

B chloroplasts.

C nuclei.

D vacuoles.

3. How many chromosomes are

there in human body cells?

A 8

B 14

C 46

D 64

4. A section of chromosome which carries

a separate piece of genetic information

is called a

A protein.

B gene.

C base.

D nucleus.

5. Which diagram best shows the range of bases in DNA?

Question 6,7 and 8 refer to a procedure used to isolate

DNA from onion cells.

6. Onion tissue is added to detergent, salt and water then placed in a

water bath at 60^oC. The purpose of this part of the procedure is to

A soften the onion.

B break open the onion cells.

C separate DNA from nuclei.

D dissolve the DNA.

7. In the next part of the procedure, what is used to separate cell walls from other cell parts?

A Water bath

B Kitchen knife

C Ice bath

D Blender

8. In the final part of the procedure, the DNA forms between

the extract and

A ethanol.

B acid.

C water.

D detergent.