When Mendel crossed yellow-seeded and green-seeded pea plants, all the offspring were yellow seeded. When he took these F1 yellow-seeded plants and crossed them to green-seeded plants, what genotypic ratio was expected? Defend your choice using a Punnett square. A) 1:2:1 B)
When a true breeding yellow seeded pea plant is crossed with a true breeding green-seeded pea plant the F1 offspring all have which genotype?
Seed color is governed by a single gene with two alleles. The yellow-seed allele is dominant and the green-seed allele is recessive. When true-breeding plants were cross-fertilized, in which one parent had yellow seeds and one had green seeds, all of the F1 hybrid offspring had yellow seeds.
When did Mendel cross yellow?
Mendel crossed true breeding yellow-seeded and green-seeded pea plants and then allowed the offspring to self-pollinate to produce an F2 generation. The results were as follows: 6,022 yellow and 2,001 green (8,023 total).
Why did the F1 generation in Mendel’s pea cross always look like one of the two parental varieties?
Why did all of the F1 offspring of Mendels classic pea cross always look like one of the two parental varieties? Each allele affected phenotypic expression; The traits blended together during fertilization: No Eenes interacted to produce the parental phenotype: One allele was dominant.
What were the characteristics of the two pea plants he crossed first?
First, he generated plants that were purebred for two characteristics, such as seed color (yellow and green) and seed shape (round and wrinkled). These plants would serve as the P1 generation for the experiment.
What happened when Mendel crossed a true breeding green seeded plant with a true breeding yellow seeded plant?
When Mendel crossed true-breeding yellow seed plants with true-breeding green seed plants, the offspring were genotypically: made up of a combination of yellow and green alleles.
When a true breeding pea plant that has yellow seeds is pollinated by a plant that has green seeds?
When a true breeding pea plant that produces green seeds is pollinated by a true breeding pea plant that produces yellow seeds, all the F1 plants have yellow seeds. This means that the allele for yellow is. No worries!
What happened when Mendel crossed 2?
For monohybrid cross, Mendel began with a pair of pea plants with two contrasting traits i.e., one tall and another dwarf. The cross-pollination of tall and dwarf plants resulted in tall plants. All the hybrid plants were tall.
What did Mendel cross in the first generation?
Mendel crossed pure lines of pea plants. Dominant traits, like purple flower colour, appeared in the first-generation hybrids (F1), whereas recessive traits, like white flower colour, were masked.
Why were all of the peas yellow when Mendel crossed a purebred green plant with a purebred yellow plant?
I crossed pure-bred green with pure-bred yellow peas. Since yellow is dominant to green, all of the offspring were yellow. The green phenotype had disappeared.
Why did all the F1 offspring of Mendel’s classic pea cross?
Why did the F1 offspring of Mendel’s classic pea cross always look like one of the two parental varieties? One phenotype was completely dominant over another. What was the most significant conclusion that Gregor Mendel drew from his experiments with pea plants?
Why did all the offspring of the first generation F1 turn out with purple flowers?
From AG: Q1 = The two flowers that he crossed in his original experiment were a homozygous dominant and a homozygous recessive. Because of this each of the offspring in the F1 generation were all heterozygous making them purple.
When Mendel crossed white flowered and purple flowered plants the hybrid offspring in the first generation or F1 generation were all what color ?)?
purple
Mendel started by crossing a true-breeding purple-flowering plant with a true-breeding white-flowering plant. The F1 generation contained all purple flowers. The F2 generation results from self-pollination of F1 plants, and contained 75% purple flowers and 25% white flowers.
When two pea plants are mated together crossed they are known as the?
Two individual plants, i.e. each one from the two groups of pea plants, were bred for a test cross. These two plants comprise the parental generation (P generation). This type of cross is called a monohybrid cross since only one trait (i.e. flower color) was tested and observed.
What were the 7 different traits Mendel observed and crossed in pea plants?
The characteristics included plant height, seed texture, seed color, flower color, pea-pod size, pea-pod color, and flower position.
Which among the following characters selected by Mendel in a pea plant is a recessive character?
Complete answer:
Green cotyledon colour was one of the recessive traits studied by Mendel in garden pea.
What happened when Mendel bred true-breeding yellow pea with true-breeding green pea?
Now the sperm and eggs come from different parent plants. When Mendel cross-pollinated a true-breeding plant that only produced yellow peas with a true-breeding plant that only produced green peas, he found that the first generation of offspring is always all yellow peas. The green pea trait did not show up.
When Mendel crossed true-breeding dominant yellow seed plants with true-breeding recessive green seed plants the offspring were phenotypically?
A phenotype is: the expression of a trait in an individual. When Mendel crossed true-breeding yellow seed plants with true-breeding green seed plants, the offspring were phenotypically: yellow seed.
What are the chances of the offspring being heterozygous for both seed shape and seed color?
Answer and Explanation: The pea plant is heterozygous for both seed shape and color, therefore, its genotype is SsYy. The possible gametes it can produce are SY, Sy, sY, and ss and each has an equal chance (25%) of being given by the pea plant to its offspring.
When to pea plants one with yellow and round seeds and the other with green and wrinkled seeds are crossed the plants of the F2 generation will be obtained in the ratio?
A pea plant with yellow and round seeds (YYRR) is crossed with a pea plant having green and wrinkled (yyrr) seeds, then in F2 generation of this dihybrid cross, 320 plants are produced, out of which 180 plants have same phenotypic characters.
Could two yellow pea plants produce green offspring?
The short answer is no, the heterozygous pea plant in question will only have yellow seeds. However, the offspring that might result from selfing this plant could have green or yellow seeds — but each one will have only one seed color, never a mix. Let’s dig into why this is!