Garden Pea Traits Test

The dominant trait for plant height is tall. This means that if a plant has at least one allele for tall height, it will exhibit the tall phenotype. The trait for short height is recessive, so a plant must have two alleles for short height in order to be short. Since tall is the dominant trait, it will be expressed in the presence of even one allele for tall height.

The recessive trait for garden pea plant height is short or dwarf. This means that if an individual pea plant inherits two copies of the gene for short or dwarf height, it will exhibit this trait. This trait is recessive because it is only expressed when both copies of the gene are present.

If the color of the garden pea pod is recessive, it means that the allele responsible for the yellow color is not dominant over the allele for a different color. Therefore, the garden pea pod will be yellow in color.

The correct answer is Gregor Mendel. Gregor Mendel was an Austrian scientist and Augustinian friar who is known as the "father of modern genetics." He conducted groundbreaking experiments with pea plants in the mid-19th century, which led to the discovery of the basic principles of heredity. Mendel's work laid the foundation for the field of genetics and revolutionized our understanding of how traits are inherited.

The dominant trait for pod shape is "inflated." This means that when an organism inherits this trait, their pods will have a swollen or puffed-up appearance. This trait is dominant, which means that if an organism has even one copy of the gene for inflated pod shape, it will be expressed in their phenotype.

The correct answer is seed shape and seed texture. This means that the term "wrinkle seed" is used to describe both the shape and texture of the seed. It implies that the seed has a wrinkled appearance or texture.

The correct ratio of having 6,000 yellow seeds and 2,000 green seeds is 3 : 1. This means that for every 3 yellow seeds, there is 1 green seed.

The garden pea characteristic in the image to the right is stem height. This refers to the length or height of the stem of the garden pea plant.

The dominant flower color for garden peas is purple. This means that the majority of garden peas will have purple flowers.

The dominant trait for pod color is green. This means that if an organism has one copy of the green allele, it will have green pods. The green trait is dominant over white and yellow, so even if an organism has one copy of the green allele and one copy of either the white or yellow allele, it will still have green pods.

The explanation for the given correct answer, which is True, is that in Pisum sativum, the flower color displaying a recessive trait is indeed white. This means that the white flower color is the result of a recessive gene, which is not expressed in the presence of a dominant gene. Therefore, when both alleles for flower color are recessive, the flower color will be white.

In genetics, the term "dominant" refers to a trait that is expressed when present, even if there is only one copy of the gene. In this case, the parent generation had a pure purple flower color and a pure white flower color. Since purple is mentioned as the dominant color, it means that the purple color trait will be expressed in the F2 generation. Therefore, the dominant color in the F2 generation would be purple.

Terminal flower position being a recessive trait in garden peas means that the trait is only expressed when an individual inherits two copies of the recessive allele for terminal flower position. If an individual inherits one copy of the recessive allele and one copy of the dominant allele, the dominant allele will mask the expression of the recessive trait. Therefore, the statement "Terminal flower position is a recessive trait in garden peas" is true.

The correct seed shape for a dominant trait in Pisum sativum is round.

The stem shape is not a characteristic that is found in Pisum sativum. This plant species is known for its various traits such as flower color, plant height, seed color, and pod color. However, the shape of the stem is not mentioned or considered as a defining characteristic of Pisum sativum.

The observed ratio of the F2 generation of round seed crossed with a wrinkled seed is 2.96:1. This means that for every 2.96 round seeds, there is 1 wrinkled seed. This ratio suggests that the trait for round seed is dominant over the trait for wrinkled seed, as the majority of the offspring exhibit the round seed phenotype.

The statement suggests that the trait of inflated pod shape is a recessive trait. This means that the trait is only expressed when an individual inherits two copies of the recessive allele for inflated pod shape. If the trait was dominant, it would be expressed even if an individual only inherited one copy of the dominant allele. Therefore, the correct answer is False, indicating that inflated pod shape is not a recessive trait.

The statement is true because the garden pea does indeed have a characteristic constricted pod shape. This means that the pods of the garden pea are narrower in the middle and bulge outwards towards the ends, giving them a distinctive shape. This feature is commonly observed in garden peas and is one of their defining characteristics.

The dominant trait for a flower position is axial. Axial refers to flowers that are positioned along the axis or stem of the plant. This means that the flowers are arranged in a way that they grow directly from the stem or main branch of the plant.

The image to the right shows a pea plant with inflated pod shape and green pod color. This means that these traits are dominant in the common garden pea.

The dominant trait for the Pisum sativum seed color is yellow. This means that if an organism has a yellow seed color, it will pass on this trait to its offspring. The other options, white, green, and blue, are not the dominant traits for seed color in Pisum sativum.

The recessive trait for seed color is green. This means that in order for a seed to have a green color, both of its alleles must be for green seed color. If an allele for any other color (orange, yellow, purple, or white) is present, it will dominate over the green allele and the seed will not be green.

When a tall male and a short female Pisum sativum plant are crossed genetically, the offspring in the F1 generation will all be tall. This is because the trait for tallness is dominant over the trait for shortness.

Gregor Johann Mendel and T.A. Knight are the correct answers for scientists who used Pisum sativum in their research in the field of genetics. Gregor Johann Mendel is known as the father of genetics and conducted extensive experiments on pea plants to study the inheritance of traits. He discovered the principles of inheritance and formulated the laws of Mendelian genetics. T.A. Knight, on the other hand, also conducted research on pea plants and made significant contributions to the understanding of plant breeding and genetics. Both scientists recognized the value of Pisum sativum as a model organism for studying genetic traits and inheritance patterns.

The garden pea is small, grows easily, and has a high yield of offspring. These features make it a useful plant for research purposes. The small size of the pea allows for easy handling and manipulation in experiments. Its ability to grow easily means that it can be cultivated and studied in various environments. The high yield of offspring allows for a large number of individuals to be studied, increasing the statistical power of the research.