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When purple is a dominant the white offspring of purple and white parents will be?

When purple is dominant and white is recessive, the white offspring of purple and white parents will be heterozygous for the purple gene. This means they will carry one purple allele and one white allele, but display the purple trait due to its dominance.


What alleles for a flower color could the sex cells carry?

Sex cells could carry alleles for flower color such as red, white, pink, or purple. These alleles determine the specific color expression in the offspring flower. Different combinations of these alleles from the parents contribute to the variation in flower colors seen in the offspring.


A pansy homozygous for purple flowers is crossed with a pansy homozygous for pink flowers. Which genotypes will be exhibited in the offspring?

If the flowers are something like PP (purple) and pp (pink), then the flowers will be Pp if you do the traditional square used in most high school classes.


If you cross a while flower with the genotype pp with a purple flower with the genotype pp the possible genotypes in the offspring will be what for the cross what would the phenotypes be?

half white and half purple


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.


When Mendel crossed purebred purple flowering plants PP with purebred white flowering plants pp what were the flower colors of the resulting offspring?

Let us assume that both Rr and rr produce red flowers and only rr produces white flowers. Since one parents and the offspring are white, they have rr as genotypes. In order to achieve this result, the other parent would have to haev at least one r in its genotype. Since the otehr parent is red and needs to have one r, it's genotype is Rr. In short, the parents's genotypes are Rr for the red one and rr for the white one.


What was the result when Mendel cross pollinated true breeding purple flowering plants and true breeding white flowering plants?

He got purple flowers, because purple is dominant over white, and a plant with the combination of purple and white will be purple. P being the purple gene, p being the white, Pp will be purple, just like PP. Only pp will be white.


How can 2 purple flowers make a white flower?

Two purple flowers can produce a white flower through a genetic phenomenon called incomplete dominance, where the dominant purple allele and recessive white allele both influence the flower's color. When two heterozygous purple flowers (Pp) are crossed, there is a 25% chance of producing a white flower (pp) due to the combination of alleles.


How do you complete a Punnett square?

A punnett square looks like this. Lets say that you had 2 flowers, and you wanted to find the likelihood that their offspring would be purple. Purple is dominant over white. You have one pure purple plant, (PP), and one hybrid purple plant, (Pp). The big P stands for purple, and the little p stands for white. You take the PP and put it on the top, one P over each of the top squares. Then you take the Pp and put each p on one of the side squares. You take one letter from each part of the square, so your four possibilities would be PP, PP, Pp, and Pp. There is no way that the plant could be white.


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.


I’m the same experiment which is true of the F1 generationA) all are heterozygousB)All are homozygousC)All will be white Color flowerD) all are Pure breedingE) None of the above?

All are heterozygous Explanation: PP (purple) x pp (white)---Parents Pp (heterozygous purple)—F1


In pea plants purple flowers are dominant to white flowers what is the punnet square?

It depends. If the cross is homozygous, then the punnett square will be PPXpp P P p Pp pp p Pp pp Heterozygous PpXPp P p P PP Pp p PP pp If you know how to do the geno and the phenotypes then you're all set