Genetics Quiz grade 7

What is a DOMINANT trait?

• a trait that covers up another trait

• a trait that is hidden

• a trait that you can lose

• a trait that disappears when you turn 28

What is an INHERITED trait?

• A feature that gets passed from parent to offspring

• A feature that is learned

• A feature that is passed from offspring to parent

• A feature that does not exist

What is the importance of DNA?

• it keeps our heart healthy

• it helps us to learn better in school

• it is the blueprint for how living things develop and function

• it keeps our bodies from getting too warm

What is a GENOTYPE? 

• The genetic make up for trait

• The physical characteristics of a trait

• Another name for the DNA model

• A set of very rare twins

What is a RECESSIVE trait?

• a trait that covers up another trait

• a trait that is hidden

• a trait that you can lose

• a trait that only dogs can get

Which of the following shows the correct pairing of the BASES found in DNA?

• C-A and T-G

• A-G and C-T

• C-G and U-A

• T-A and G-C

___________________________ is the field of science that studies how traits are passed on from one generation to the next.

• Microscopy

• Astronomy

• Cardiology

• Genetics

Which of the following is the genotype for someone with HETEROZYGOUS genes for a trait?

• MM

• Mm

• mm

If brown hair is represented by "B" and blond hair is represented by "b" then what must be the genotype of someone who has blond hair?

• BB

• bb

• Bb

• either BB or Bb

In the DNA of humans and other animals, what controls the different traits that are expressed (height, eye color, etc.)?

• the shape (structure) of the DNA bases

• the order (sequence) of the DNA bases

• the color of the DNA bases

• the frequency (number) of DNA bases