Curly tailed/Straight tailed Pigs

Question

Cross two heterozygous curly tailed pigs.

C - curly tailed

c - straight tailed

Question at position 24
24

Fill in the Blank
1 point



Question at position 24
Fill in the blanks that correspond with the missing information in the punnett square.



1.
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; 2.
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; 3.
Question Blank 3 of 8
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; 4.
Question Blank 4 of 8
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; 5.
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; 6.
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; 7.
Question Blank 7 of 8
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; 8.
Question Blank 8 of 8
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Question at position 25
25

Fill in the Blank
1 point



Question at position 25
What is the ratio of possible phenotypes of the F1 generation? (enter numeric answer only)

Question Blank 1 of 2
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curly :
Question Blank 2 of 2
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straight
Question at position 26
26

Fill in the Blank
1 point



Question at position 26
What is the ratio of possible genotypes of the F1 generation? (enter numeric answer only)

Question Blank 1 of 3
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CC :
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Cc :
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cc
Question at position 27
27

Numeric
1 point



Question at position 27
How many were homozygous recessive? (enter numeric answer only)

How many were homozygous recessive? (enter numeric answer only)

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Question at position 28
28

Multiple Choice
1 point



Question at position 28

What is the probability that their next offspring will have straight tails?

What is the probability that their next offspring will have straight tails?

1/4

1/2

3/4

0/4

Answer 1

To answer your questions, let's start by crossbreeding two heterozygous curly-tailed pigs (Cc x Cc).

1. Punnett Square Analysis:

   • Gametes: C (curly) and c (straight)

   Creating a Punnett Square:

            C         c
        -----------------
      |    CC    |   Cc   |
   C  |----------|---------|
      |    Cc    |   cc   |
        -----------------
   

   • From the Punnett Square, we find:
     • 1 CC (homozygous dominant)
     • 2 Cc (heterozygous)
     • 1 cc (homozygous recessive)

2. Fill in the Blanks for the Punnett Square:

   • 1. CC
   • 2. Cc
   • 3. Cc
   • 4. cc
   • 5. C
   • 6. c
   • 7. C
   • 8. c

3. Phenotypic Ratio of the F1 Generation:

   • Curly tails (CC + Cc) = 3
   • Straight tails (cc) = 1

   Therefore, the ratio is:

   • 3 curly : 1 straight.

4. Fill in the Ratio of Possible Phenotypes:

   • Question Blank 1: 3
   • Question Blank 2: 1

5. Genotypic Ratio of the F1 Generation:

   • Homozygous dominant (CC) = 1
   • Heterozygous (Cc) = 2
   • Homozygous recessive (cc) = 1

   Thus, the genotypic ratio is:

   • 1 CC : 2 Cc : 1 cc.

6. Fill in the Ratio of Possible Genotypes:

   • Question Blank 1: 1
   • Question Blank 2: 2
   • Question Blank 3: 1

7. Homozygous Recessive Count:

   • From the Punnett Square, the number of homozygous recessive (cc) is 1.

8. Probability of Next Offspring Having Straight Tails:

   • The probability of having straight tails (cc) is 1/4.

To summarize the answers:

• Fill in the Blanks:

  1. CC
  2. Cc
  3. Cc
  4. cc
  5. C
  6. c
  7. C
  8. c

• Phenotypic Ratio:

  • Question Blank 1: 3
  • Question Blank 2: 1

• Genotypic Ratio:

  • Question Blank 1: 1
  • Question Blank 2: 2
  • Question Blank 3: 1

• Homozygous Recessive Count:

  • Answer: 1

• Probability of Straight Tails:

  • Answer: 1/4