purple flowers.
This diagram shows Mendel’s first experiment with pea plants. The F1 generation results from cross-pollination of two parent (P) plants, and contained all purple flowers.
What did Mendel find in the F1 generation?
Working with garden pea plants, Mendel found that crosses between parents that differed for one trait produced F1 offspring that all expressed one parent’s traits. The traits that were visible in the F1 generation are referred to as dominant, and traits that disappear in the F1 generation are described as recessive.
What are the genotypes of the purple flowers in the F1 generation?
The F1 plants all have one purple allele (P) and one white allele (p). The genotype is the alleles for each gene in the plant. Here the genotype is Pp.
What color or colors will the flowers be in the F1 offspring of a true breeding purple flowered pea plant and a true breeding white flowered pea plant?
Both parent plants are “true breeding” and all of the F1 offspring have purple flowers and round seeds.
What were the F1 results when Mendel crossed a true breeding purple flowering plant with a true breeding white flowering plant?
F1 and F2 Generations
5: In one of his experiments on inheritance patterns, Mendel crossed plants that were true-breeding for violet flower color with plants true-breeding for white flower color (the P generation). The resulting hybrids in the F1 generation all had violet flowers.
Why did all of the F1 offspring of Mendel’s purple and white flowered pea cross always look like one of the two parental varieties?
Answer and Explanation: The correct answer is (a) one phenotype was completely dominant over another. This means that the pea plant will inherit two alleles for a particular gene (one from each parent), however, only one allele will be phenotypically expressed because it is dominant over the other allele.
What were the results of Mendel’s experiments or crosses?
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. However, recessive traits reappeared in second-generation (F2) pea plants in a ratio of 3:1 (dominant to recessive).
What will happen if a purple flower is crossed with a white flower?
Mendel noted that hybridizing true-breeding (P generation) plants gave rise to an F1 generation that showed only one trait of a characteristic. For example, a true-breeding purple-flowering plant crossed with a true-breeding white-flowering plant always gave rise to purple-flowered hybrid plants.
What is the color of the flower of the F1 generation?
A F1 generation flower has red and white petals.
Which is dominant purple or white flowers?
These are the parental generation. Their offspring—the first filial, or F1, generation—each receive one purple allele and one white allele. Since all of the offspring have the purple phenotype, this tells us that the purple allele is dominant to the white allele.
When the offspring of a purple color flower and a white flower?
Mendel noted that hybridizing true-breeding (P generation) plants gave rise to an F1 generation that showed only one trait of a characteristic. For example, a true-breeding purple-flowering plant crossed with a true-breeding white-flowering plant always gave rise to purple-flowered hybrid plants.
What are the possible offspring of purple flower and white flower?
So when two heterozygous plants are crossed, according to Mendel’s law of seggregation, the genotype of the offsprrings will be PP, Pp,Pp,pp. Thus the phenotypic ratio of purple-flowered to white-flowered offspring will be 3:1. Hence 75% offsprings will be purple.
When Mendel crossed true-breeding purple and white flowered pea plants the dominant to recessive phenotypic ratio in the F1 generation was?
Answer and Explanation: Genotype of pure breed purple flowered plant will be PP. Genotype of pure breed white flowered plant will be pp. Therefore, ratio of dominant to recessive phenotype will be 1:0.
When Mendel crossed his two true-breeding lines of flower color what outcome did he observe?
In his crosses of true-breeding lines of peas that differed in flower color (purple versus white), Mendel observed that all F1 hybrid offspring had the same color (purple). The phenotype of the F1 hybrids revealed that one color (and the allele for that color) was completely dominant to the other color (and allele).
What do you expect after crossing the purple PP white PP flower pea plants?
We will not have white coloured pea plant in F1 generation. Because all progeny plants will have the genotype Pp, and as the P is a dominant allele, that is purple colour is dominant, all the plants with Pp genotype will have purple coloured flowers. Was this answer helpful?
When Mendel cross two purple flowered peas?
When Gregor Mendel crossed two pea plants that were pure breeding for flower color (purple x white), he found that all of the offspring had purple flowers. Then, when he crossed these purple flowered offspring, he found that 3/4 of them had purple flowers and 1/4 of them had white flowers.
Why did F1 offspring of Mendel’s classic pea plant 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 was the most significant conclusion that Gregor Mendel drew from his experiments with pea plants *?
So, the correct option is ‘Traits are inherited in discrete units one from each parent‘.
Why is the pea wrinkled seed allele a recessive allele?
Answer and Explanation: The allele for wrinkled seed shape in garden peas is considered recessive because the trait associated with the allele is not expressed in heterozygotes. Heterozygotes are individuals that have two different alleles for a particular gene locus.
Which colour is dominant for pod colour in pea?
green
For the seed colour, yellow is the dominant trait and green is recessive while for the fruit (pod) colour, green is dominant and yellow is recessive.
What Did Mendel’s experiments with pea plants show?
Gregor Mendel describes his experiments with peas showing that heredity is transmitted in discrete units. From earliest time, people noticed the resemblance between parents and offspring, among animals and plants as well as in human families. Gregor Johann Mendel turned the study of heredity into a science.