Probally Not
In pea plants, individuals that are Pp for the alleles that code for flower color will have purple flowers. What is the phenotype?
A+ purple flowers.
If two true-breeding pea plants are crossed their offspring will show the dominant trait. The flowers will be purple or light purple.
The presence of both purple and white flowers in Rachel's pea plants suggests that she is dealing with a trait that exhibits variation, likely due to genetic differences. This could indicate that the plants are heterozygous for a specific flower color gene, where purple is often the dominant trait over white. The variation may also result from cross-pollination or different genetic lines. Overall, it highlights the diversity within the pea plant population in her backyard.
A+ purple flowers.
75%
In pea plants, the presence of an allele for purple flowers is dominant over the allele for white flowers. This means that if a plant has at least one allele for purple flowers, it will exhibit purple flowers, masking the effect of the recessive white flower allele. As a result, only plants with two recessive alleles will display white flowers. This illustrates the principles of Mendelian inheritance and dominance.
True-breeding pea plants always produce offspring with the same traits as the parent plant. This is because they are homozygous for the trait of interest, resulting in consistent expression in the offspring generation.
This job
Pea plants can naturally get key nutrients from the soil, such as nitrogen, phosphorus, and potassium. They also form mutualistic relationships with nitrogen-fixing bacteria in the soil that convert atmospheric nitrogen into a form that the plants can use. Additionally, organic matter in the soil can decompose and release nutrients for the pea plants to absorb.
Cross-pollination is rare among pea plants primarily due to their structure and reproductive mechanisms. Pea plants are predominantly self-pollinating, as their flowers have both male and female reproductive organs, allowing them to fertilize themselves. Additionally, the flowers are often closed, which further limits the opportunity for cross-pollination. Environmental factors and the absence of pollinators also contribute to the prevalence of self-fertilization in these plants.
Sweet pea flowers can grow up to 6-8 feet tall, depending on the variety. They are climbing plants that benefit from some form of support to help them reach their full height.