Question

Can anybody help with this question? 1. Based on Mendel’s results, which trait for each pea characteristic is dominant? Complete the table shown below. In the table, list the dominant and recessive traits for each characteristic. 2. For each characteristic, do the following:103104 Calculate to the hundredths place the ratio of dominant to recessive for each characteristic in the third generation. Record the ratio for each characteristic in the table. Why are the ratios not exactly 3:1?

Answer 1

1. purple white 3.15:1

2. yellow green 2.99:1

3. round wrinkled 2.96:1

4. green yellow 2.82:1

Step-by-step explanation:

Answer 2

Dominant traits: Yellow seeds, Round seeds, Inflated pods, Green pods; Recessive traits: Green seeds, Wrinkled seeds, Constricted pods, Yellow pods. The ratios are not exactly 3:1 due to independent assortment and segregation of alleles during meiosis.

Mendel's results from his pea plant experiments revealed certain traits to be dominant and others recessive. The dominant traits include yellow seeds, round seeds, inflated pods, and green pods, while the recessive traits are green seeds, wrinkled seeds, constricted pods, and yellow pods. When calculating the ratio of dominant to recessive traits in the third generation (F3), it's not exactly 3:1 for each characteristic.

This discrepancy is attributed to the principles of independent assortment and segregation during meiosis. Independent assortment refers to how genes for different traits segregate independently of each other, leading to various combinations of alleles in offspring. Segregation ensures that each gamete carries only one allele for each trait. These principles result in the observed ratios, deviating slightly from the expected 3:1 ratio, showcasing the variability introduced by these genetic processes.