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Honors Dihybrid Cross

Last updated almost 2 years ago

48 questions

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Question 2

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Question 34

34.

Use the chart below to identify the phenotype of a snail with the genotype WwPpbb

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Question 36

36.

Draw the cross between a snail that is heterozygous for white shell and a snail with a black shell.

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Question 38

38.

Draw the cross between two snails that are heterozygous for pink skin.

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Question 4

4.

When you fill in the cross, make sure you put the Bs toghether and the Rs together

Question 5

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Question 6

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Question 7

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Question 8

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Question 9

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Question 10

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Question 11

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Question 12

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Question 13

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Question 14

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Question 15

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Question 16

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Question 17

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Question 18

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Question 19

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Question 20

20.

Blue body color (B) is dominant to purple body color (b). Round eyes (R) is dominant to oval eyes (r). How many offspring in the cross will be blue with round eyes (B_R_).

Question 21

21.

Blue body color (B) is dominant to purple body color (b). Round eyes (R) is dominant to oval eyes (r). How many offspring in the cross will be blue with oval eyes?

Question 22

22.

Blue body color (B) is dominant to purple body color (b). Round eyes (R) is dominant to oval eyes (r). How many offspring in the cross will be purple with round eyes?

Question 23

23.

Blue body color (B) is dominant to purple body color (b). Round eyes (R) is dominant to oval eyes (r). How many offspring in the cross will be purple with oval eyes?

Question 24

24.

What is the phenotypic rato?

Question 25

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Question 26

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Question 27

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Question 28

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Question 29

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Question 30

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Question 31

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Question 32

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Question 33

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Question 35

35.

Use the chart to determine the genotype of a snail that is recessive for shell color, heterozygous for skin color, and homozygous dominant for eyes.

Question 37

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Question 39

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Question 40

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Question 41

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Question 42

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Question 43

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Question 44

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Question 45

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Question 46

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Question 47

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Question 48

48.

Long nose (L) is dominant to stubby nose (l). Blue eyes (B) are dominant to purple eyes (b). What is the phenotype of BbLl?

blue eyes long nose

blue eyes stubby nose

purple eyes long nose

purple eyes stubby nose

Long nose (L) is dominant to stubby nose (l). Blue eyes (B) are dominant to purple eyes (b). What is the phenotype of bbLl?

blue eyes long nose

blue eyes stubby nose

purple eyes long nose

purple eyes stubby nose

Long nose (L) is dominant to stubby nose (l). Blue eyes (B) are dominant to purple eyes (b). What is the phenotype of Bbll?

blue eyes long nose

blue eyes stubby nose

purple eyes long nose

purple eyes stubby nose

Long nose (L) is dominant to stubby nose (l). Blue eyes (B) are dominant to purple eyes (b). What is the phenotype of bbll?

blue eyes long nose

blue eyes stubby nose

purple eyes long nose

purple eyes stubby nose

Long nose (L) is dominant to stubby nose (l). Blue eyes (B) are dominant to purple eyes (b). What is the probability that the baby will have blue eyes with a stubby nose?

9/16

3/16

4/16

1/16

Long nose (L) is dominant to stubby nose (l). Blue eyes (B) are dominant to purple eyes (b). What is the probability that the baby will be purple eyes with a stubby nose?

9/16

3/16

4/16

1/16

Long nose (L) is dominant to stubby nose (l). Blue eyes (B) are dominant to purple eyes (b). What is the probability that the baby will be blue eyes with a long nose?

9/16

3/16

4/16

1/16

Long nose (L) is dominant to stubby nose (l). Blue eyes (B) are dominant to purple eyes (b). What is the probability that the baby will be blue eyes with a stubby nose?

9/16

3/16

4/16

1/16

Long nose (L) is dominant to stubby nose (l). Blue eyes (B) are dominant to purple eyes (b). What is the probability that the baby will have purple eyes?

8/16

10/16

4/16

3/16

If a snail with heterozgyous for white shell and a snail with a black shell are crossed. What percent of the offspring will have a white shell?

100%

75%

50%

25%

What is the phenotypic ratio of a cross between two heterozygous pink skin snail?

2:2

4:0

3:1

What is the phenotype of a fruit that is RrFf?

red and round

red and pear shaped

yellow and round

yellow and pear shaped

Considering only fruit color, how many of the offspring will be red?

16/16

12/16

9/16

3/16

Considering only shape color, how many of the offspring will be round?

16/16

12/16

9/16

3/16

How many of the offspring will be yellow and round?

16/16

12/16

9/16

3/16

1/16

How many of the offspring will be yellow and pear shaped?

16/16

12/16

9/16

3/16

1/16

L= long stem, l= short stem
Y= yellow seed,  y= green seed

Look at the dihybrid cross what is the phenotype of LlYy?

short stem and green seeds

long stem and green seeds

short stem and yellow seeds

long stem and yellow seeds

L= long stem, l= short stem
Y= yellow seed,  y= green seed

Look at the dihybrid cross what is the phenotype of LlYY?

short stem and green seeds

long stem and green seeds

short stem and yellow seeds

long stem and yellow seeds

L= long stem, l= short stem
Y= yellow seed,  y= green seed

How many of the offspring will be short stemed with yellow seeds?

16/16

9/16

3/16

1/16

0/16

L= long stem, l= short stem
Y= yellow seed,  y= green seed
How many of the offspring will be long stemed with yellow seeds?

16/16

9/16

3/16

1/16

0/16