Answered

Welcome to Westonci.ca, where your questions are met with accurate answers from a community of experts and enthusiasts. Experience the ease of finding accurate answers to your questions from a knowledgeable community of professionals. Discover in-depth answers to your questions from a wide network of professionals on our user-friendly Q&A platform.

Select the correct location.

In pea plants, the allele for inflated pod seed, [tex]\( I \)[/tex], is dominant over the allele for constricted pod seed, [tex]\( i \)[/tex]. The Punnett square shows a cross for this trait. Which offspring will be homozygous dominant?

[tex]\[
\begin{array}{|c|c|c|}
\hline
& I & i \\
\hline
i & Ii & ii \\
\hline
I & II & Ii \\
\hline
\end{array}
\][/tex]

A. [tex]\( Ii \)[/tex]

B. [tex]\( ii \)[/tex]

C. [tex]\( II \)[/tex]

D. [tex]\( Ii \)[/tex]

Sagot :

GinnyAnswer
Let's analyze the given scenario step by step:

1. In pea plants, the allele for inflated pod type, [tex]\( I \)[/tex], is dominant over the allele for constricted pod type, [tex]\( i \)[/tex].
2. We need to fill in the Punnett square to determine the genotype of the offspring.

First, we start with the given Punnett square framework:
[tex]\[ \begin{array}{|c|c|c|} \hline & I & i \\ \hline i & & \\ \hline I & & \\ \hline \end{array} \][/tex]

Placing the alleles accordingly on the top and side, we then proceed to fill in the squares by combining the alleles from the top and side columns.

Step-by-step, we combine the alleles:

- The top row and first column: [tex]\( i \times I = iI \)[/tex]
- The top row and second column: [tex]\( i \times i = ii \)[/tex]
- The bottom row and first column: [tex]\( I \times I = II \)[/tex]
- The bottom row and second column: [tex]\( I \times i = Ii \)[/tex]

Filling these into the Punnett square, we get:

[tex]\[ \begin{array}{|c|c|c|} \hline & I & i \\ \hline i & iI & ii \\ \hline I & II & Ii \\ \hline \end{array} \][/tex]

Now, let's identify the offspring genotypes:

- [tex]\( iI \)[/tex]: Heterozygous dominant for inflated pod
- [tex]\( ii \)[/tex]: Homozygous recessive for constricted pod
- [tex]\( II \)[/tex]: Homozygous dominant for inflated pod
- [tex]\( Ii \)[/tex]: Heterozygous dominant for inflated pod

The offspring that will be homozygous dominant (having two dominant [tex]\( I \)[/tex] alleles) is located in the:
[tex]\[ \begin{array}{|c|c|c|} \hline & I & i \\ \hline i & iI & ii \\ \hline I & \mathbf{II} & Ii \\ \hline \end{array} \][/tex]

So, the correct location for the homozygous dominant offspring is in the intersection of the second row and the second column, where the genotype is [tex]\( II \)[/tex].
Thank you for choosing our platform. We're dedicated to providing the best answers for all your questions. Visit us again. Thanks for stopping by. We strive to provide the best answers for all your questions. See you again soon. Thank you for using Westonci.ca. Come back for more in-depth answers to all your queries.