Twins in Space TEST

Directions: Read the definition below and click on the correct vocabulary word.

examination of things to see how things are similar

• radiation

• comparison

• chromosomes

Directions: Read the definition below and click on the correct vocabulary word.

appearing to be exactly the same

• comparison

• radiation

• identical

Directions: Read the definition below and click on the correct vocabulary word.

parts of DNA in cells that contains genes

• chromosomes

• radiation

• comparison

Directions: Read the definition below and click on the correct vocabulary word.

exactly the same thing as another

• DNA

• chromosomes

• duplicate

Directions: Read the definition below and click on the correct vocabulary word.

energy that travels in the form of waves like the sun

• radiation

• DNA

• identical

Directions: Read the definition below and click on the correct vocabulary word.

the substance in cells that determines the characteristics of a living things

• identical

• radiation

• DNA

Directions: Choose the answer that has about the same meaning as the underlined word.

Human DNA can only be seen with a powerful microscope.

• helpful bacteria that live inside a person’s stomach

• the substance on the surface of a cell that fights bacteria

• the part of the cell that helps damaged cells repair themselves

• the substance that determines the characteristics of living things

Directions: Choose the answer that has about the same meaning as the underlined word.

Our class had to write a comparison of two different plants.

• how things grow

• how things are similar

• how things work together

• how things are backward

Directions: Choose the answer that has about the same meaning as the underlined word.

The information in chromosomes determines a person’s eye color.

•  the parts of DNA in cells that contain genes

• the part of a cell that holds the nucleus

  
  

• a structure on the outside of a cell

• the strongest part of a cell

Directions: Choose the answer that has about the same meaning as the underlined word.

If you have been exposed to radiation, you have come into contact with

• frozen air

• salty water

  
  

• heavy metals

• energy waves