After making the Punnett square for the P-generation, you should have come up with the probabilities of the offspring having the combination of traits for the tail and scales. Write the probabilities down in a table. Assign a range of random numbers between 1 and 10 000 to each of the combinations produced in the Punnett square. The range must correspond with the percentage of each combination. Write the assigned ranges down in a table. For example: each of the combinations has a 25% chance of being produced. Thus, combination 1 will have a range of 1 to 2 500, combination 2 will have a range of 2 501 to 5 000, combination 3 will have a range of 5 001 to 7 500, and combination 4 will have a range of 7 501 to 10 000.

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After making the Punnett square for the P-generation, you should have come up with the probabilities of the offspring having the combination of traits for the tail and scales. Write the probabilities down in a table. Assign a range of random numbers between 1 and 10 000 to each of the combinations produced in the Punnett square. The range must correspond with the percentage of each combination. Write the assigned ranges down in a table. For example: each of the combinations has a 25% chance of being produced. Thus, combination 1 will have a range of 1 to 2 500, combination 2 will have a range of 2 501 to 5 000, combination 3 will have a range of 5 001 to 7 500, and combination 4 will have a range of 7 501 to 10 000.
P-generation:
Fish 1: BbTt (heterozygous black scales, heterozygous long tail) Fish 2: BBtt (homozygous black scales, heterozygous
long tail)
Punnett Square:
BT Bt bT bt
BT BBTT BBTt BbTT BbTt
Bt BBtT BBtt BbtT Bbtt
bT bBTT bBTt bbTT bbTt
bt bBtT bBtt bbtT bbtt
The probability of traits for the offspring is:
• Black scales:
●
o 3/4 (75%) probability of having black scales (BB or Bb)
o 1/4 (25%) probability of having blue scales (bb)
Long tail:
o 3/4 (75%) probability of having a long tail (TT or Tt)
• 1/4 (25%) probability of having a short tail (tt)
Combining both traits, the possible offspring and their probabilities are:
BBTT (black scales, long tail) - 3/16 (18.75%)
• BBTt (black scales, long tail) - 3/16 (18.75%)
• BbTT (black scales, long tail) - 3/16 (18.75%)
• BbtT (black scales, long tail) - 3/16 (18.75%)
• BBtt (black scales, short tail) - 1/16 (6.25%)
• BbTt (black scales, long tail) - 3/16 (18.75%)
• Bbtt (blue scales, short tail) - 1/16 (6.25%)
• bbTt (blue scales, long tail) - 1/16 (6.25%)
Transcribed Image Text:P-generation: Fish 1: BbTt (heterozygous black scales, heterozygous long tail) Fish 2: BBtt (homozygous black scales, heterozygous long tail) Punnett Square: BT Bt bT bt BT BBTT BBTt BbTT BbTt Bt BBtT BBtt BbtT Bbtt bT bBTT bBTt bbTT bbTt bt bBtT bBtt bbtT bbtt The probability of traits for the offspring is: • Black scales: ● o 3/4 (75%) probability of having black scales (BB or Bb) o 1/4 (25%) probability of having blue scales (bb) Long tail: o 3/4 (75%) probability of having a long tail (TT or Tt) • 1/4 (25%) probability of having a short tail (tt) Combining both traits, the possible offspring and their probabilities are: BBTT (black scales, long tail) - 3/16 (18.75%) • BBTt (black scales, long tail) - 3/16 (18.75%) • BbTT (black scales, long tail) - 3/16 (18.75%) • BbtT (black scales, long tail) - 3/16 (18.75%) • BBtt (black scales, short tail) - 1/16 (6.25%) • BbTt (black scales, long tail) - 3/16 (18.75%) • Bbtt (blue scales, short tail) - 1/16 (6.25%) • bbTt (blue scales, long tail) - 1/16 (6.25%)
Table 1.2. P-generation offspring combinations
Combination
1
2
3
Genotype, Phenotype, and
Sketch of the Phenotype
Probability
Random
Number (1 to
10 000)
Transcribed Image Text:Table 1.2. P-generation offspring combinations Combination 1 2 3 Genotype, Phenotype, and Sketch of the Phenotype Probability Random Number (1 to 10 000)
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