X-Linked Punnett Square Generator

Directions for Completing the X-Linked Monohybrid Cross Generator

This tool helps you explore X-linked monohybrid crosses, allowing you to visualize potential offspring combinations from parents with different alleles. Follow the steps below to complete the activity.

Part 1: Drag and Drop Parent Gametes

1. Review Parent 1 Gametes

   • You will see two gametes under Parent 1 labeled as X^A and X^a. These represent the alleles for Parent 1.

2. Review Parent 2 Gametes

   • There are three possible gametes for Parent 2: X^A, X^a, and Y.

3. Assign Gametes to the Punnett Square

   • Drag and drop the gametes from Parent 1 into the top two boxes of the Punnett square (Boxes 2 and 3).

   • Drag and drop the gametes from Parent 2 into the left side boxes (Boxes 4 and 7).

   • Note: You do not need to validate this step.

Part 2: Drag and Drop F1 Combinations

1. Drag and Drop F1 Genotypes

   • In the section labeled Possible F1 Combinations, you will find five possible combinations:

     • XAXA

     • XAXa

     • XaXa

     • XAY

     • XaY

2. Place the Correct F1 Combinations

   • Drag and drop the correct F1 combinations into boxes 5, 6, 8, and 9 of the Punnett square.

   • If your F1 combinations are correct, the boxes will turn green. If they are incorrect, they will turn red.

   • Boxes 5, 6, 8, and 9 are the only ones you need to complete.

Part 3: Phenotypic Ratios

1. Select the Correct Phenotypic Ratios

   • Below the Punnett square, you will see dropdown menus for selecting the number of each type of offspring:

     • Normal Daughters

     • Carrier Daughters

     • Affected Daughters

     • Normal Son

     • Affected Son

2. Choose the Correct Values

   • Use the dropdowns to select the number of each phenotype (0, 1, 2, etc.) based on the F1 combinations you completed in Part 2.

3. Validate Phenotypic Ratios

   • Click the "Validate Phenotypic Ratios" button to check your answers.

   • Correct selections will highlight in green; incorrect selections will turn red.

Part 4: Phenotypic Percentages

1. Select the Correct Phenotypic Percentages

   • In this section, select the percentage of each phenotype from the dropdowns (0%, 50%, or 100%):

     • Normal Daughters

     • Carrier Daughters

     • Affected Daughters

     • Normal Son

     • Affected Son

2. Validate Phenotypic Percentages

   • After making your selections, click the "Validate Phenotypic Percentages" button to check your answers.

   • Correct percentages will highlight in green, while incorrect ones will turn red.

Summary:

• Part 1: Drag and drop gametes into the Punnett square.

• Part 2: Drag the correct F1 combinations into the square (green = correct, red = incorrect).

• Part 3: Select the phenotypic ratios and validate your choices.

• Part 4: Select the phenotypic percentages and validate your answers.

Complete each step and use the validation features to check your understanding of X-linked crosses!