Because the allele that produces wrinkled peas is recessive, the offspring of this cross will all have wrinkled peas. Mendel then explains the concept of dominant and recessive alleles by saying, “By performing my experiments with peas, I learned a lot about genetics and how traits are passed on.
Is wrinkled dominant or recessive?
One of these factors is “dominant,” while the other is “recessive.” In the above example, the round-producing factor is dominant, and the wrinkled-producing factor is recessive. If two recessive factors are present, the organism will display the recessive trait.
Are round or wrinkled peas dominant?
Given an inheritance pattern of dominant–recessive, the genotypic and phenotypic ratios can then be determined. In pea plants, round peas (R) are dominant to wrinkled peas (r).
Is wrinkled seeds dominant trait?
The shape of the seed has two traits – round and wrinkled. Round seed trait is dominant over wrinkled.
Is green dominant or recessive in peas?
Mendel’s experiments showed that green is the recessive seed color in pea plants.
Why is the pea wrinkled seed allele a recessive allele?
Why is the pea wrinkled-seed allele a recessive allele? The trait associated with the allele is not exhibited in heterozygotes. Mendel studied the inheritance of several types of pea-plant traits, including seed color.
What is the genotype of a wrinkled pea plant?
The shape of the seeds are controlled by two alleles Round (R) and Wrinkled (r). Round shape is the dominant one and wrinkled shape is the recessive trait. Now for wrinkled phenotype to be shown, the genotype has to be recessive homozygous. Therefore, the genotype of wrinkled phenotype is rr.
What is wrinkled pea phenotype?
The shape of the pea seeds is controlled by two alleles. S is dominant alleles and stands for smooth and s is recessive allele and stands for wrinkled. The wrinkled phenotype is shown when the genotype contains both the recessive alleles. The genotype of the wrinkled seeds of pea is ss.
Which of the following is dominant trait in pea plant?
Explanation: Mendel based his experiments on pea plants and studied seven pairs of contrasting traits. Yellow seed colour is the dominant trait and green seed colour is the recessive trait.
What are dominant recessive traits?
Dominant and recessive traits exist when a trait has two different forms at the gene level. The trait that first appears or is visibly expressed in the organism is called the dominant trait. The trait that is present at the gene level but is masked and does not show itself in the organism is called the recessive trait.
Which of these is not a dominant trait of pea plant?
So, the correct option is ‘Pod colour – Yellow‘.
Which of the following is an example of dominant trait?
Freckles, cleft chin and dimples are all examples of a dominant trait. Having almond-shaped eyes is a dominant trait whereas having round eyes is a feature controlled by recessive alleles. The trait of detached earlobes, as opposed to attached earlobes, is dominant.
Which of the following is the example of recessive traits?
Examples of Recessive Traits
Cleft chin, dimples, and freckles are similar examples; individuals with recessive alleles for a cleft chin, dimples, or freckles do not have these traits. Having round (as opposed to almond-shaped) eyes is recessive, along with inability to roll one’s tongue.
Which pea colour is dominant?
Dominant trait for seed colour in peas. Get Answer to any question, just click a photo and upload the photo and get the answer completely free, UPLOAD PHOTO AND GET THE ANSWER NOW! Solution : Yellow.
Which seed colour is dominant in pea?
yellow seed colour
Heterozygous yellow seeded plant is crossed with green seeded plant.
What is the dominant seed color in a pea plant?
yellow seeds
If a heterozygous yellow seeded plant is crossed with a green seeded plant, what ratio of yellow and green seeded plants could you expect in F1-generation.
How do Mendel’s experiments show that gene may be dominant or recessive?
Mendel selected true breeding tall (TT) and dwarf (tt) pea plants. When a tall pea plant is crossed with a short (dwarf) pea plant, all the F1 hybrids are tall. (i.e., in this case, the gene causing tallness is dominant while the gene causing dwarfness is recessive.).
What is the dominant shape of a pea pod how do you know?
The dominant shape of a pea pod is smooth. You know because the smooth trait shows up in the F1. That’s why its allele is a capital letter. The symbol for the recessive allele for pod color is c (lower-case).
What is the phenotype of round wrinkled seed shape?
Mendel’s First Law of Genetics (Law of Segregation)
| Parental Cross | F1 Phenotype | F2 Phenotypic Ratio |
|---|---|---|
| Round x Wrinkled Seed | Round | 5474 Round:1850 Wrinkled |
| Yellow x Green Seeds | Yellow | 6022 Yellow:2001 Green |
| Red x White Flowers | Red | 705 Red:224 White |
| Tall x Dwarf Plants | Tall | l787 Tall:227 Dwarf |
What is the genetic basis of wrinkled phenotype of pea seed?
Solution: The tiny grain size produced by a double recessive allele is the genetic basis for the wrinkled phenotype of pea seed.
What is the probability that the offspring will have wrinkled seeds?
Since capital R = round and is dominant that means that RR and Rr will all be round seeds. That means that ¾ or 75% of the offspring produced will be round. Since, wrinkled is rr, then ¼ or 25% of the offspring will be wrinkled. The genotype is the gene make-up of the offspring.
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