Mendel Crosses

Mendel began his experiments with pea plants that stayed the same from one generation to the next.

• true

• false

Tags

NGSS.HS-LS3-1

In Mendel's studies of the colors of purple pea flowers, none of the first generation crosses had white flowers

• true

• false

In those same experiments, about three-fourths of the second-generation crosses had white flowers.

• true

• false

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

He then crossed those plants to create true-breeding plants

• true

• false

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Round (R) and yellow (Y) are dominant traits. Based off this Punnett square, what fraction of the offspring will have wrinkled, yellow seeds?

• 9/16

• 3/16

• 1/16

• 16/16

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

From those results, Mendel concluded that white flowers on pea plants are a dominant trait.

• true

• false

In other studies, a trait that showed up in the same proportion of second-generation crosses as white flowers did was yellow pods.

• true

• false

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

One trait that Mendel did not study in pea plants was the shape of the plants' leaves.

• true

• false

Gregor Mendel experimented with pea plants because they ________ quickly, producing many generations in a short period of time

He also chose pea plants because they had easily observable _______, which came in only 2 forms. For example the color of the flowers.