biology

posted by .

Hi there!

I have this question for my bio/genetics homework, and I can't seem to figure it out.

It reads, "A true-breeding red snapdragon is crossed to a true-breeding white snapdragon. The F1 progeny are all red. When the F1 is selfed, the following F2 progeny are observed:

1850 red (55%)
670 pink (20%)
831 white (25%)
(3351 total)

Give the appropriate genotypes of the parents, F1 and F2 progeny and name the type of genetic interaction.

Additionally, if random mating were to happen between the gametes of the F2 generation, what phenotype classes would you expect in the resulting flowers?"

At first I thought it was incomplete dominance, but that wouldn't make sense of true Red was RR and true white was rr. Is there something I'm missing?

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Biology

    A cross between true breeding tall red flowered plants and true breeding short white flowered plants. Tall and red are dominant traits. What would be the expected ratios of phenotypes in the f1 and f2 generations?
  2. AP Biology

    In cattle, the gene pair for red (RR) or white (WW) coat color shows an absence of dominance. Heterozygotes (RW) have a roan coat. Outline a breeding procedure to establish apure breeding herd of red cattle from a roan bull and white …
  3. genetics

    can u help me with this qs pure breeding white budgies were crossed with pure breeding yellow and green budgies. all the F1 offspring were yellow and green. the F1 was then testcrossed with pure breeding white budgies, and the offspring …
  4. Biology

    Which of the following statements about Mendel's breeding experiments is correct?
  5. Biology

    A lilly from a true-breeding line with white flowers and short corollas (line A) is crossed to a lilly from a true-breeding line with black flowers and long corollas (line B). The resulting offspring, the F1, are all red-flowered, …
  6. Genetics

    In chickens, the Leghorn variety has white feathers due to an autosomal dominant allele. Silkies have white feathers due to recessive allele in a second gene. If true-breeding white leghorn is crossed to a true breeding white silkie, …
  7. Biology

    In snapdragon plants, neither one of the petal colors is dominant to the other. The hybrids have a intermediate phenotype. If a homozygous red flower is crossed with a homozygous white flower, What will the offspring’s phenotype …
  8. Genetics

    Predict percentage of offspring with flower colors in snapdragons In snapdragons, there is one allele that produces red flowers and another allele that produces white flowers. Neither allele is dominant and heterozygous individuals …
  9. Genetics

    A pure-breeding white mouse with a long tail was crossed to pure-breeding pink mouse with a short tail. The F1 progeny were all pink with long tails. These F1 mice were test crossed to white mouse with a short tail. If the gene controlling …
  10. biology (genetics)

    A pure-breeding white mouse with a long tail was crossed to pure-breeding pink mouse with a short tail. The F1 progeny were all pink with long tails. These F1 mice were test crossed to white mouse with a short tail. If the gene controlling …

More Similar Questions