0
A homozygous violet flowered pea plant is crossed with a homozygous with flowered pea plant. If the violet color is dominant (V), what is the genotype and phenotype of the F1 generation?
Sara Salem
What is the genotype and phenotype of the F1 generation
Sara Salem
Add your answer:
Earn +20 pts
What would mating between a true breeding purple flowered pea plant and a true breeding white flowered pea plant produce?
Make a Punnet Square:White HETEROZYGOUS---WwRed HOMOZYGOUS--ww (this one is recessive because the white characteristic dominated in the heterozygous type)So:W ww Ww www Ww wwThese four are the potential types of the offspring, they will either be HETEROZYGOUS WHITE or HOMOZYGOUS RED, no homozygous white
How do incomplete dominance and codominance improve the quality of plant and animal breeds?
During incomplete dominance both the allelic genes in a chromosome in dominant condition inherit a character in the off-springs. When only one gene out of the allelic pair is dominant and its counterpart is recessive, we get incomplete expression. For example a pea plant with red flowers is crossed with another plant having white flowers, the f1 plants are pink flowered. On selfing of f1 plants we get f2 progeny in the ratio of 1 red: 2 pink : 1 white flowered plants. These pink flowered plants show incomplete dominance.
What kinds of offsprings can be produced if 2 pink flowered plants are crossed?
In general, pink flowers tend to be an example of incomplete dominance of the gene for red flowers. Therefore, the phenotypic ratio of a cross between two pink flowers would be the same as the genotypic ratio of 1:2:1. In other words, 1 red to 2 pink to 1 white.
Describe the offspring of a true breeding white flowering plant?
More true breeding white flowered plants. If the gene combination for white is WW and is dominant a cross of WW x WW would result in 100% WW (white flowered plants)
What happens when a red flowered plant with incomplete dominance is crossed with a pink flowered plant which is the offspring of the crossing of a white flowered plant and a red flowered plant which has incomplete dominance?
The crossing of a red flowered plant and a white flowered plant produces all the offspring with pink flowers. This cross illustrates red and white exhibit incomplete dominance. ... With the result, the heterozygous offspring will be phenotypically and genotypically different from either of the homozygous parent.
When there is incomplete dominates what happens?
If there is incomplete dominance, the offspring will have an intermediate of phenotype. For example, if you mate a homozygous white flowered snapdragon plant with a homozygous red flowered snapdragon plant, you will get pink flowered offspring.
Why were all the offsprins purple when gregor menel crossed true breeding purple flowered plants with true breeding white flowered plants?
All the offspring were purple because Mendel was dealing with simple genetic dominance. The purple true breeding parent was homozygous dominant and the true breeding white parent was homozygous recessive. When those two are crossed they create only heterozygous offspring (look up a punnett) and since this is simple dominance those heterozygous will show the phenotype of the dominant allele which is purple.
A cross between homozygous purple-flowered and homozygous white-flowered pea plants results in offspring with purple flowers This demonstrates?
A homozygous purple flower and a homozygous white flower having offspring that are purple is an example of dominance. Traits that yield to other traits is referred to as recessive. So in this case Purple was the dominant trait and White was the recessive trait.
What is the phenotype of a heterozygous four o'clock flowers?
White-flowered, red-flowered, and pink-flowered.
When Gregor Mendel crossed true breeding purple flowered plants with true breeding white flowered plants all the offspring were purple because?
PP X ww or Pw X ww Because all Purple flower plants are dominant and express the color purple. This can be seen in a homozygous cross, or a heterozygous cross, ( shown above ) White plants, to breed true, must be in homozygous condition.
What would mating between a true breeding purple flowered pea plant and a true breeding white flowered pea plant produce?
Make a Punnet Square:White HETEROZYGOUS---WwRed HOMOZYGOUS--ww (this one is recessive because the white characteristic dominated in the heterozygous type)So:W ww Ww www Ww wwThese four are the potential types of the offspring, they will either be HETEROZYGOUS WHITE or HOMOZYGOUS RED, no homozygous white
Are pea plants self fertilize?
In F 2 , he got 3:1 ratio in tall and dwarf pea plants .Phenotype - All TallTT x TtTT (75%) TallTt (25%) Tall
A cross between homozygous purple flowered and homozygous white flowered pea plants results in offspring with purple flowers This demonstrates?
The principle of dominance.The gene for purple flowers is dominant, while the gene for white flowers is recessive. We know this because both flowers are homozygous, meaning their genes are the same. The genotype of Penelope (the purple flower) is PP, or purple purple. The genotype of Walter (the white flower) is pp, or white white. Because of this, if the gene for white petals was dominant, all the flower offspring would display white petals. If the genes were codominant, the flower offspring would be lavender, an even mix between the white and purple phenotypes.The Punnet square for this example (if you are a visual person) looks like this:......................Walter........................p | p....................___ | ___................P | Pp | Pp |Penelope .....________................P | Pp | Pp |...................|___|___ |You can clearly see that all the offspring are heterozygous, yet because they all share Penelope's phenotype, it is quite obvious that, again, the gene for purple flowers is dominant.
If purple flower color is dominant over white flowers color how can two purple flowered parents produce white flowered offspring?
It can happen when both parents are a heterozygous
How do incomplete dominance and codominance improve the quality of plant and animal breeds?
During incomplete dominance both the allelic genes in a chromosome in dominant condition inherit a character in the off-springs. When only one gene out of the allelic pair is dominant and its counterpart is recessive, we get incomplete expression. For example a pea plant with red flowers is crossed with another plant having white flowers, the f1 plants are pink flowered. On selfing of f1 plants we get f2 progeny in the ratio of 1 red: 2 pink : 1 white flowered plants. These pink flowered plants show incomplete dominance.
What kinds of offsprings can be produced if 2 pink flowered plants are crossed?
In general, pink flowers tend to be an example of incomplete dominance of the gene for red flowers. Therefore, the phenotypic ratio of a cross between two pink flowers would be the same as the genotypic ratio of 1:2:1. In other words, 1 red to 2 pink to 1 white.
Describe the offspring of a true breeding white flowering plant?
More true breeding white flowered plants. If the gene combination for white is WW and is dominant a cross of WW x WW would result in 100% WW (white flowered plants)
