Mendel and His Peas

Sperm from one plant fertilizes the eggs of the same plant in 

• cross-pollination
• cross-breeding
• self-pollination
• self-breeding

When a plant self-pollinates and all offspring have the same trait as the parent, it is called

• true-breeding plant
• cross-breeding plant
• self-propagating plant
• hybrid plant

Tags

NGSS.HS-LS3-1

When parents with different traits are bred, a trait that reappears in the second generation after disappearing in the first generation is a

• dominant trait
• recessive trait
• true-breeding trait
• characteristic

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

When a first-generation plant self-pollinates, what is the ratio of dominant to recessive traits in the second-generation plants?

• 1:3
• 3:1
• 1:4
• 4:1

Tags

NGSS.HS-LS3-2

The passing of genetic traits from parent to offspring is called

• cross-pollination
• cross-breeding
• heredity
• genetics

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What step did Mendel take to be sure that his pea plants did not self-pollinate?

• He used two white plants.
• He removed the anthers of one plant.
• He added the anthers to both plants
• He used plants that were not true breeding

The basic unit of heredity is known as a... 

• allele
• gene
• DNA
• genotype

Tags

NGSS.HS-LS3-1

Dominant traits are more common in a population then recessive traits

• true
• false

Tags

NGSS.HS-LS4-3

NGSS.HS-LS4-4

Which type of genetic factor can hide or mask another genetic factor?

• strong
• huge
• dominant
• recessive

How can two parents with brown eyes have a child with blue eyes?

• The parents may both have recessive genes for blue eyes.
• The child was born during the winter
• Eye color in humans is not an inherited trait
• The child was deprived of oxygen during its birth

Tags

NGSS.HS-LS3-1