Unit 4 Review 2022

Which of the following is an example of a biological trait?

• personality

• hair style

• eye color

• regional accent

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Mendel began his experiments with purebred pea plants. This approach enabled him to determine that variations among offspring were a result of

• random mutations

• self-pollination

• genetic uniformity

• his crossings

Mendel was able to identify predictable patterns of heredity. He succeed mainly because he chose to study traits that

• were always dominant

• tended to be recessive

• could be diluted

• only had two forms

Which of the following conclusions was a result of Mendel's observations?

• Organisms that give rise to purebreds are genetically superior

• Organisms that have intermediate features are self-pollinating

• Organisms inherit two copies of each gene, one from each parent

• Organisms that self-pollinate do not have "either-or" features

What is the genotypic ratio of a Bb x BB cross

• 1:2:1

• 2:2:0

• 0:2:2

• 2:2:2

What is the genotypic ratio of a BB x bb cross?

• 1:2:1

• 4:0:0

• 0:4:0

• 0:0:4

Tags

NGSS.HS-LS3-3

Which is not a possible genotypic ratio of a monohybrid cross?

• 1:2:1

• 0:0:4

• 2:0:2

• 4:0:0

What would go into box 3?

• bb

• BB

• Bb

• bB

What would go into box 2?

• bb

• BB

• Bb

• bB

Tags

NGSS.HS-LS3-2

What would go into box 1?

• CCdd

• CCDD

• CcDD

• DDcc

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2