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1. If a heterozygous male with the genotype [tex]Ww[/tex] is mated with a homozygous recessive female of genotype [tex]ww[/tex], there is a [select option] chance that the offspring will be heterozygous.
\[
\begin{tabular}{|c|c|c|}
\hline & W & w \\
\hline W & Ww & Ww \\
\hline w & ww & ww \\
\hline
\end{tabular}
\]

2. If the heterozygous [tex]Ww[/tex] is crossed with a homozygous dominant [tex]WW[/tex], then the probability of having a homozygous recessive offspring is [select option].
\[
\begin{tabular}{|c|c|c|}
\hline & W & W \\
\hline W & WW & WW \\
\hline w & Ww & Ww \\
\hline
\end{tabular}
\]

Answer :

Sure, let's solve this step-by-step:

### First Scenario: Heterozygous Male Ww and Homozygous Recessive Female ww

1. Definitions:
- A heterozygous genotype means the alleles are different (e.g., Ww).
- A homozygous recessive genotype means both alleles are the same and recessive (e.g., ww).

2. Parent Genotypes:
- Male: Ww
- Female: ww

3. Possible Offspring:
- The male (Ww) can contribute either a 'W' or a 'w'.
- The female (ww) can only contribute a 'w'.

4. Punnett Square:
[tex]\[
\begin{array}{c|c|c}
& w & w \\
\hline
W & Ww & Ww \\
\hline
w & ww & ww \\
\end{array}
\][/tex]

From the Punnett square, the resulting genotypes of the offspring are:
- 50% Ww (heterozygous)
- 50% ww (homozygous recessive)

Thus, there is a 50% chance that the offspring will be heterozygous (Ww).

### Second Scenario: Heterozygous Ww and Homozygous Dominant WW

1. Parent Genotypes:
- One parent is heterozygous: Ww
- The other parent is homozygous dominant: WW

2. Possible Offspring:
- The heterozygous parent (Ww) can contribute either a 'W' or a 'w'.
- The homozygous dominant parent (WW) can only contribute a 'W'.

3. Punnett Square:
[tex]\[
\begin{array}{c|c|c}
& W & W \\
\hline
W & WW & WW \\
\hline
w & Ww & Ww \\
\end{array}
\][/tex]

From the Punnett square, the resulting genotypes of the offspring are:
- 50% Ww (heterozygous)
- 50% WW (homozygous dominant)

Since none of these possibilities are homozygous recessive (ww), the probability of having a homozygous recessive offspring is 0%.

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