Mendel and His Peas 2

What trait appeared in Mendel's first experiment?

• the recessive trait.

• the dominant trait.

• both dominant and recessive trait.

• a blend of dominant and recessive trait.

What happens when a true-breeding plant self-pollinates?

• Some of its offspring have the same traits as the parent.

• None of its offspring have the same traits as the parent.

• All of its offspring have the same traits as the parent.

• One of its offspring has the same traits as the parent.

Tags

NGSS.MS-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-LS3-1

Dominate = brown eyes

Recessive = green eyes

• All in first generation have brown eyes

• All in first generation have green eyes

• 1 out of 4 in 2nd generation have brown eyes

• 1 out of 4 in 2nd generation have green eyes

• 3 out of 4 in 2nd generation have brown eyes

Tags

NGSS.MS-LS3-2

A white true breed plant self-pollinate can have 1st generation offspring of

• purple flower

• white flower

• yellow flower

Tags

NGSS.MS-LS3-2

The trait that will always be expressed if one copy of an allele is present.

• recessive

• dominant

• co-dominant

The trait that will be expressed only if two copies of the allele are present.

• recessive

• dominant

• co-dominant

Black hair (H) is a dominant gene in guinea pigs and black yellow (h) is recessive. What color hair would a guinea pig have if it got a recessive gene (h) from mom and a dominant gene (H) from dad?

• Black hair

• Yellow hair

• Can't tell

Tags

NGSS.MS-LS3-1

Black hair (H) is a dominant gene in guinea pigs and black yellow (h) is recessive. What color hair would a guinea pig have if it got a recessive gene (h) from mom and a recessive gene (h) from dad?

• Black hair

• Yellow hair

• Can't tell

Tags

NGSS.MS-LS3-1

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

• 1:3

• 3:1

• 1:4

• 1:0