College

Dear beloved readers, welcome to our website! We hope your visit here brings you valuable insights and meaningful inspiration. Thank you for taking the time to stop by and explore the content we've prepared for you.
------------------------------------------------ Select the correct answer from each drop-down menu.

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 [tex]\square[/tex] chance that the offspring will be heterozygous.

[tex]\[
\begin{array}{|c|c|c|}
\hline
& W & w \\
\hline
w & Ww & ww \\
\hline
w & Ww & ww \\
\hline
\end{array}
\][/tex]

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 [tex]\square[/tex].

[tex]\[
\begin{array}{|c|c|c|}
\hline
& W & w \\
\hline
W & WW & Ww \\
\hline
W & WW & Ww \\
\hline
\end{array}
\][/tex]

Answer :

Certainly! Let's work through the genetic crosses step-by-step to find the probabilities.

First Genetic Cross:

1. Parents' Genotypes:
- A heterozygous male with genotype Ww.
- A homozygous recessive female with genotype ww.

2. Possible Gametes:
- The male can produce two types of gametes: W or w.
- The female can only produce one type of gamete: w.

3. Punnett Square:

| | W | w |
|---|---|---|
| w | Ww | ww |
| w | Ww | ww |

4. Offspring Genotypes:
- Ww (heterozygous)
- Ww (heterozygous)
- ww (homozygous recessive)
- ww (homozygous recessive)

5. Probability of Heterozygous Offspring (Ww):
- Out of the 4 possible offspring genotypes, 2 are Ww.
- Therefore, the probability is 2 out of 4, which is 0.5 or 50%.

Second Genetic Cross:

1. Parents' Genotypes:
- A heterozygous individual with genotype Ww.
- A homozygous dominant individual with genotype WW.

2. Possible Gametes:
- The heterozygous individual can produce W or w gametes.
- The homozygous dominant individual can only produce W gametes.

3. Punnett Square:

| | W | w |
|---|---|---|
| W | WW | Ww |
| W | WW | Ww |

4. Offspring Genotypes:
- WW (homozygous dominant)
- WW (homozygous dominant)
- Ww (heterozygous)
- Ww (heterozygous)

5. Probability of Homozygous Recessive Offspring (ww):
- All possible offspring in this cross are either WW or Ww.
- Therefore, the probability of any ww offspring is 0.

So, summarizing the results:
- In the first cross, there is a 50% chance that the offspring will be heterozygous (Ww).
- In the second cross, there is a 0% chance of having a homozygous recessive (ww) offspring.