In a cross between individuals that are Aa x Aa, how many boxes of the Punnett Square will show an offspring that is AA?

[HINT: Draw yourself a Punnett Square :) ]

• 1
• 2
• 3
• 4

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

In some animals, brown eyes (B) are dominant over blue eyes (b).

Which of these genotypes will complete the Punnett Squares to the right?

• B

• bb

• Bb

• BB

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Which is the correct way to setup the Punnett square if mom is heterozygous and dad is homozygous dominant?

• Punnett Square A

• Punnett Square B

• Punnett Square C

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

In rats, a straight tail is dominant to a curly tail.

If the mother (TT) is homozygous dominant and the father (tt) has a curly tail, what is the probability of their offspring having a curly tail?

• 100%

• 75%

• 50%

• 25%

• 0%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

In flowers, white flowers are dominant to pink flowers.

Complete a cross between a homozygous white and heterozygous flower.

What is the probability that their offspring will be heterozygous?

• 100%

• 75%

• 50%

• 25%

• 0%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3

In cherry tomatoes, red color (R) is dominant to yellow color (r).

If two heterozygous plants are crossed, what percentage of the offspring will be yellow?

• 0%

• 25%

• 50%

• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Use the punnett square to answer the question that follows.

In the monohybrid cross between two organisms heterozygous for a particular trait (Ff), what would be the predicted ratio of the offspring's genotypes?

• 1 FF

  3 Ff

  1ff

• 1 FF

  2 Ff

  1 ff

• 2 FF

  2 Ff

• 3 Ff

  1 ff

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

In some plants, red flowers are dominant (R) and white flowers are recessive (r).

Two plants are crossed and the offspring have a possibility of 3/4 red flowers and 1/4 white flowers.

Which of these punnett squares shows the cross and its offspring?

• Punnett Square A

• Punnett Square B

• Punnett Square C

• Punnett Square D

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

A student is predicting whether the seeds of pea plants produced by the cross shown in the Punnett square will be wrinkled or round.

Round (R) seeds are dominant, and wrinkled (r) seeds are recessive.

This cross will produce what percentage of offspring?

• 100% round and 0% wrinkled

• 75% round and 25% wrinkled

• 50% round and 50% wrinkled

• 25% round and 75% wrinkled

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Select the boxes in the Punnett Square where you would find heterozygous offspring.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2