Question

5. Finally, look at the Punnett square again and write the numbers of offspring with each phenotype. Answer: Type your answer here.Click or tap here to enter text. purple flowers, round seeds: purple flowers, wrinkled seeds: white flowers, round seeds: white flowers, wrinkled seeds

Answer 1

Using a Punnett square, students can predict the percentages of pea plant offspring with different flower colors and seed shapes by combining alleles from parent genotypes and counting the resulting phenotype combinations.

Step-by-step explanation:

The question relates to Mendelian genetics, specifically using a Punnett square to predict the phenotypes of offspring from a cross between pea plants with different traits for flower color and seed shape. A Punnett square helps to determine the genetic outcomes of a cross between individuals with known genotypes. In this case, assuming purple flowers (P) are dominant over white flowers (p), and round seeds (R) are dominant over wrinkled seeds (r), different combinations of alleles will result in different phenotypes in the offspring. Without the exact Punnett square, the exact numbers cannot be provided, but the student can calculate the percentages of each phenotype (given enough information) by filling in the Punnett square with the respective alleles and counting the resulting combinations. For example, crossing a PpRr (purple flowers, round seeds) with pprr (white flowers, wrinkled seeds) could result in offspring with purple flowers and round seeds (PprR), purple flowers and wrinkled seeds (Pprr), white flowers and round seeds (ppRr), and white flowers and wrinkled seeds (pprr).

Answer 2

The Punnett square predicts genetic outcomes for crosses involving flower color and seed shape in pea plants. The ratio can vary, but commonly the purple flower and round seed phenotype is most prevalent, following Mendelian genetics, with the standard 9:3:3:1 ratio in a dihybrid cross.

Step-by-step explanation:

The question refers to a genetic cross involving two traits in pea plants: flower color and seed shape.

The Punnett square is a tool used to predict the genotypic and phenotypic outcomes of this cross. Considering flower phenotype, purple flowers (P) are dominant to white flowers (p), and for seed shape, round seeds (R) are dominant to wrinkled seeds (r).

Therefore, without the specific details of the cross from the question, a general outcome would be that a cross between homozygous dominant for purple flowers and round seeds (PPRR) and homozygous recessive for white flowers and wrinkled seeds (pprr) would result in all offspring having purple flowers and round seeds (PpRr).

If an individual with the genotype PpRr is self-crossed, according to Mendelian genetics, the expected phenotypic ratio would be 9:3:3:1 for purple flowers with round seeds, purple flowers with wrinkled seeds, white flowers with round seeds, and white flowers with wrinkled seeds, respectively.