3. Corn kernel shape can be smooth or wrinkled (like a raisin) as pictured below, where A and C are smooth kernels, and B and D are wrinkled kernels. Note that dimpled kernels fall into the SMOOTH category. ©W.P. Armstrong 2001 The smooth kernel allele is dominant (S), while the wrinkled allele is recessive (s). Write the genotype and phenotype of the following kernels for the kernel SHAPE characteristic. GENOTYPE PHENOTYPE homozygous recessive kernel heterozygous kernel homozygous dominant kernel

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**Corn Kernel Shape and Genetics**

3. **Corn Kernel Shape:** Corn kernels can be smooth or wrinkled (like a raisin). In the image provided, kernels labeled A and C are smooth, while kernels labeled B and D are wrinkled. Note that dimpled kernels are categorized as smooth.

**Image Description:** The image depicts rows of corn kernels with clear labeling. A and C are yellow smooth kernels, while B and D are darker wrinkled kernels.

**Genetics Explanation:** The smooth kernel allele is dominant, represented as (S), while the wrinkled allele is recessive, represented as (s). The task is to determine the genotype and phenotype of kernels based on their shape.

**Genotype and Phenotype Table:**

| Genotype                   | Phenotype           |
|----------------------------|---------------------|
| Homozygous recessive (ss)  | Wrinkled            |
| Heterozygous (Ss)          | Smooth              |
| Homozygous dominant (SS)   | Smooth              |
Transcribed Image Text:**Corn Kernel Shape and Genetics** 3. **Corn Kernel Shape:** Corn kernels can be smooth or wrinkled (like a raisin). In the image provided, kernels labeled A and C are smooth, while kernels labeled B and D are wrinkled. Note that dimpled kernels are categorized as smooth. **Image Description:** The image depicts rows of corn kernels with clear labeling. A and C are yellow smooth kernels, while B and D are darker wrinkled kernels. **Genetics Explanation:** The smooth kernel allele is dominant, represented as (S), while the wrinkled allele is recessive, represented as (s). The task is to determine the genotype and phenotype of kernels based on their shape. **Genotype and Phenotype Table:** | Genotype | Phenotype | |----------------------------|---------------------| | Homozygous recessive (ss) | Wrinkled | | Heterozygous (Ss) | Smooth | | Homozygous dominant (SS) | Smooth |
**Monohybrid Cross of Corn Kernel Color**

The first step of a monohybrid cross is to make the P generation: A PUREBRED (homozygous) plant with PURPLE KERNELS is crossed with a PUREBRED (homozygous) corn plant with YELLOW KERNELS, as pictured below:

*[Image of a corn with purple kernels and a corn with yellow kernels, with an "X" indicating a cross between them]*

1. **Create a Punnett Square** to predict the ratio of kernel colors expected in the F1 generation offspring that result from the above mating.

   - **Parents (P1):** Purebred Purple Corn X Purebred Yellow Corn

   - **Parent Genotype:** ___ X ___

   - **Possible Gametes:** ___ or ___ X ___ or ___

   - **Punnett Square F1 (hybrid) offspring:**

     - A diagram with rows and columns. The rows are labeled "Gametes from purple parent," and the columns are labeled "Gametes from yellow corn parent." The intersections (grey) represent "All possible genotypes of offspring."

   - **List possible genotype(s) and percentage of offspring:** __________

   - **List possible phenotype(s) and percentages of offspring:** __________

This exercise helps you understand how to set up and interpret a Punnett Square to predict offspring traits in a monohybrid cross.
Transcribed Image Text:**Monohybrid Cross of Corn Kernel Color** The first step of a monohybrid cross is to make the P generation: A PUREBRED (homozygous) plant with PURPLE KERNELS is crossed with a PUREBRED (homozygous) corn plant with YELLOW KERNELS, as pictured below: *[Image of a corn with purple kernels and a corn with yellow kernels, with an "X" indicating a cross between them]* 1. **Create a Punnett Square** to predict the ratio of kernel colors expected in the F1 generation offspring that result from the above mating. - **Parents (P1):** Purebred Purple Corn X Purebred Yellow Corn - **Parent Genotype:** ___ X ___ - **Possible Gametes:** ___ or ___ X ___ or ___ - **Punnett Square F1 (hybrid) offspring:** - A diagram with rows and columns. The rows are labeled "Gametes from purple parent," and the columns are labeled "Gametes from yellow corn parent." The intersections (grey) represent "All possible genotypes of offspring." - **List possible genotype(s) and percentage of offspring:** __________ - **List possible phenotype(s) and percentages of offspring:** __________ This exercise helps you understand how to set up and interpret a Punnett Square to predict offspring traits in a monohybrid cross.
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