Question

1. set up a punnett square using the following information:- dominate allele for tall plants = d- recessive allele for dwarf plants = d- dominate allele for purple flowers = w- recessive allele for white flowers = w- cross a homozygous dominate parent (ddww) with a homozygous recessive parent (ddww)2. using the punnett square in question #1:a. what is the probability of producing tall plants with purple flowers?possible genotype(s)?b. what is the probability of producing dwarf plants with white flowers?possible genotype(s)?c. what is the probability of producing tall plants with white flowers?possible genotype(s)?d. what is the probability of producing dwarf plants with purple flowers?possible genotype(s)?3. set up a punnett square using the following information:- dominate allele for black fur in guinea pigs = b- recessive allele for white fur in guinea pigs =b- dominate allele for rough fur in guinea pigs = r- recessive allele for smooth fur in guinea pigs = r- cross a heterozygous parent (bbrr) with a heterozygous parent (bbrr)4. using the punnett square in question #3:a. what is the probability of producing guinea pigs with black, rough fur?possible genotype(s)?b. what is the probability of producing guinea pigs with black, smooth fur?possible genotype(s)?c. what is the probability of producing guinea pigs with white, rough fur?possible genotype(s)?d. what is the probability of producing guinea pigs with white, smooth fur?possible genotype(s)?

Explanation:

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For Question 2 (using Punnett Square from Q1):

Step1: Analyze Q1 Punnett Square

All offspring have genotype $DdWw$

Step2: Solve 2a: Tall purple plants

Tall ($D_-$) + purple ($W_-$) = all $DdWw$. Probability: $\frac{16}{16}=100\%$

Step3: Solve 2b: Dwarf white plants

Dwarf ($dd$) + white ($ww$): no matching genotypes. Probability: $0\%$

Step4: Solve 2c: Tall white plants

Tall ($D_-$) + white ($ww$): no matching genotypes. Probability: $0\%$

Step5: Solve 2d: Dwarf purple plants

Dwarf ($dd$) + purple ($W_-$): no matching genotypes. Probability: $0\%$

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For Question 4 (using Punnett Square from Q3):

Step1: Count total offspring squares

Total genotypes = 16

Step2: Solve 4a: Black rough fur

Black ($B_-$) + rough ($R_-$): Count genotypes $BBRR, BBRr, BbRR, BbRr$. Total = 9. Probability: $\frac{9}{16}=56.25\%$

Step3: Solve 4b: Black smooth fur

Black ($B_-$) + smooth ($rr$): Count genotypes $BBrr, Bbrr$. Total = 3. Probability: $\frac{3}{16}=18.75\%$

Step4: Solve 4c: White rough fur

White ($bb$) + rough ($R_-$): Count genotypes $bbRR, bbRr$. Total = 3. Probability: $\frac{3}{16}=18.75\%$

Step5: Solve 4d: White smooth fur

White ($bb$) + smooth ($rr$): Genotype $bbrr$. Count =1. Probability: $\frac{1}{16}=6.25\%$

Answer:

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Question 2:

a. Probability: 100%, Possible genotype(s): $DdWw$
b. Probability: 0%, Possible genotype(s): None
c. Probability: 0%, Possible genotype(s): None
d. Probability: 0%, Possible genotype(s): None

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Question 4:

a. Probability: 56.25%, Possible genotype(s): $BBRR, BBRr, BbRR, BbRr$
b. Probability: 18.75%, Possible genotype(s): $BBrr, Bbrr$
c. Probability: 18.75%, Possible genotype(s): $bbRR, bbRr$
d. Probability: 6.25%, Possible genotype(s): $bbrr$