Answer: Genotype of a plant pea heterozygous for round seeds and homozygous recessive for green seeds is (d) Rryy. Starting genotype of parents in a dihybrid cross would be (d) RrYy and RrYy.
What is the genotype for a heterozygous pea plant for round?
So, the correct answer is ‘YYRr‘.
What is the genotype of Round seeds?
Again, this is determined by the alleles a plant has at just one genetic locus. In this case, the allele for wrinkled seeds (W) is dominant to the allele for round seeds (w). This means that plants with both genotypes WW and Ww have wrinkled seeds, and only those with genotype ww have round seeds.
What is the genotype for a heterozygous pea plant for Round R and green Y seed?
(i) Pisum sativum. (ii) The genotype of F1 generation is RrYy, i.e. heterozygous pea plant with round and yellow seeds. Dihybrid phenotypic ratio in F2 generation is 9:3:3:1.
When a heterozygous pea plant with yellow round seeds is crossed?
A breeder performs a dihybrid cross, where a heterozygous pea plants with yellow round seeds are self-fertilised and 800 progeny are produced.
What is the genotype for a pea plant homozygous for round seeds R and heterozygous for yellow seeds?
RR or Rr is the dominant genotype responsible for round seeds. YY or Yy is the dominant genotype responsible for yellow seeds. rr is the recessive genotype responsible for wrinkled seeds. Hence the seed that has the genotype round and green will be RRyy or Rryy.
What would be the phenotype of the F1 generation if a pea plant with round seeds is crossed with another pea plant with wrinkled seeds?
A pea plant producing round seeds is crossed with another pea plant producing wrinkled seeds. In the F1 generation, 50% of the offspring produced wrinkled seeds.
Are round seeds dominant or recessive?
dominant
In pea plants, round seeds are dominant and wrinkled seeds are recessive.
Is Round seed shape dominant or recessive?
dominant trait
For example, the round shape of seeds (RR) is a dominant trait.
Are round peas dominant or recessive?
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).
What is the genotype for a heterozygous pea plant for Round R and green Y seeds answer a ry B RrYy C RrYy D RrYy?
Answer: Genotype of a plant pea heterozygous for round seeds and homozygous recessive for green seeds is (d) Rryy. Starting genotype of parents in a dihybrid cross would be (d) RrYy and RrYy.
What is the genotypic ratio of round and green?
| Round yellow | Round green | Wrinkled green |
|---|---|---|
| 9/16 | 3/16 | 1/16 |
What would be the genotype of the parent plant having round seeds?
A round seeded plant ( R ) is dominant to a wrinkled seeded plant ( r). What parental genotypes will produce offspring that are 50% homozygous dominant and 50% heterozygous dominant ? Q. Round seeded (RR) plant is crossed with wrinkled seeded plant (rr).
What will happen when round green and wrinkled yellow peas are crossed with each other?
Two pea plants one with round green seeds (RRyy) and another with wrinkled yellow (rrYY) seeds produce F1 progeny that have round, yellow (RrYy) seeds.
What is the phenotype of a heterozygous tall pea plant?
Answer and Explanation: A heterozygous tall plant will have a genotype of Tt. T is mainly the dominant allele and will actually rule over the t allele, which is recessive. Therefore, due to the presence of the T allele, the plant will show a tall phenotype.
What type of plants are formed in F1 and F2 generation if a plant with yellow and wrinkled seed YYRR crossed with a plant having green and round seeds YYRR?
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.
What is the phenotypic ratio when both heterozygous round pea plant where cross?
9:3:3:1
The P cross produces F1 offspring that are all heterozygous for both characteristics. The resulting 9:3:3:1 F2 phenotypic ratio is obtained using a Punnett square. In pea plants, purple flowers (P) are dominant to white (p), and yellow peas (Y) are dominant to green (y).
What is the genotype of a homozygous yellow seed plant?
But we know that yellow pods are a recessive character, and that recessive characters are expressed only in a homozygous recessive individual. Thus the genotype of this plant must be gg.
What is the probability that an offspring will have a heterozygous genotype?
a 50% chance
The Punnett square below makes it clear that at each birth, there will be a 25% chance of you having a normal homozygous (AA) child, a 50% chance of a healthy heterozygous (Aa) carrier child like you and your mate, and a 25% chance of a homozygous recessive (aa) child who probably will eventually die from this
What do the F1 progeny of tall plants with round seeds and?
Since, the dominant phenotypes are tall and round seeds, the F1 progeny would be a hybrid with tall and round seeds.
When a tall plant with round seeds is crossed with a dwarf plant?
When a tall pea plant with round seeds was crossed with a dwarf pea plant with wrinkled seeds then all the individual of F1-populations were tall with round seeds. However selfing among F1-population led to a 9 : 3 : 3 :1 phenotypic ratio.