Feather color in budgies (parakeets) is determined by two different genes, Y and B. YYBB, YYBB, or YYBB is green; yyBB or yyBb is blue; YYbb or Yybb is yellow; and yybb is white. Two blue budgies were crossed. Over the years they produced 22 offspring, 5 of them were white. What are the most likely genotypes of the two parents? Multiple Choice Both were yyBB One is yyBb and the other is yybb Both were YYBB Both were yyBb One is yyBB and the other is yyBb

Feather color in budgies (parakeets) is determined by two different genes, Y and B. YYBB, YYBB, or YYBB is green; yyBB or yyBb is blue; YYbb or Yybb is yellow; and yybb is white. Two blue budgies were crossed. Over the years they produced 22 offspring, 5 of them were white. What are the most likely genotypes of the two parents? Multiple Choice Both were yyBB One is yyBb and the other is yybb Both were YYBB Both were yyBb One is yyBB and the other is yyBb

Name: Feather color in budgies (parakeets) is determined by two different g
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Description: Feather color in budgies (parakeets) is determined by two different genes, Y and B. YYBB, YYBB, or YYBB is green; yyBB or yyBb is blue; YYbb or Yybb is yellow; and yybb is white.Two blue budgies were crossed. Over the years they produced 22 offsprin

Concepts of Biology

1st Edition

ISBN:9781938168116

Author:Samantha Fowler, Rebecca Roush, James Wise

Publisher:Samantha Fowler, Rebecca Roush, James Wise

Chapter8: Patterns Of Inheritance

Section: Chapter Questions

Problem 2ACQ: Figure 8.10 In pea plants, purple flowers (P) are dominant to white (p), and yellow peas (Y) are...

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Figure 8.10 In pea plants, purple flowers (P) are dominant to white (p), and yellow peas (Y) are dominant to green (y). What are the possible genotypes and phenotypes for a cross between PpYY and ppYy pea plants? How many squares would you need to complete a Punnett square analysis of this cross?
In snapdragons, red flower color (R) is incompletely dominant over white flower color (r), so that the heterozygote has pink flowers. A red snapdragon is crossed with a white snapdragon, and the F1 are intercrossed to produce F2. What is the genotype and phenotypes of the F1 and F2, along with their expected proportions? If the F1 are backcrossed to the white parent, what will be the expected genotype and phenotype of the offspring? If the F1 are backcrossed to the red parent and the resulting progeny are intercrossed, what is the expected proportions of genotypes and phenotypes in the progeny?
In corn plants, a dominant allele (K) allows kernel colour and a recessive allele (k) inhibits kernel colour when homozygous. On a different chromosome, the dominant gene P causes purple kernel colour and the homozygous recessive genotype causes red kernel colour.A true breeding white corn plant was crossed with a purple corn plant, yielding 50% red corn plants and 50% purple corn plants.What are the genotypes of the parental corn plants? Select one: a. KKPp kkpp b. KkPP kkPP c. kkPp KkPp d. KKPP kkPp
In cat, a black cat when crossed with a white cat produces a tabby which appears to be a gray cat striped with black and white fur. What is the F1 phenotyphic ratio of a cross between a black and white cats? Numerical anwers only. When tabby cats are crossed with black cat. what is the phenotypic ratio of the offspring? Numerical anwers only. When tabby cats are crossed black cat. What is the phenotypes of the offspring? write in CAPITAL LETTERS WITH SEPARATE COMMAS When tabby cats are crossed with white cat. what is the phenotypic ratio of the offspring? Numerical anwers only. What is the specific mode of inheritance behind this phenomenon?
Summer squash color is determined by the interaction of more than one gene. The presence of CC or Cc allele combinations produces a squash that is white in color, and the C allele is epistatic to the G allele. The presence of GG or Gg produces a squash that is yellow in color, and ccgg produces a squash that is green. After two fully heterozygous squash are crossed. Give the phenotypes, and frequency of occurrence, of the F2 offspring
In peas, purple flowers are dominant to white. If a purple-flowered, heterozygous plant were crossed with a white-flowered plant, what is the expected ratio of genotypes and phenotypes among the F1F1offspring? If two of the purple-flowered F1F1 offspring were randomly selected and crossed, what is the expected ratio of genotypes and phenotypes among the F2F2 offspring?
In corn plants, a dominant allele Z inhibits kernel color, while the recessive allele z permits color when homozygous. At a different locus, the dominant allele X causes purple kernel color, while the homozygous recessive genotype causes red kernel color. If corn plants heterozygous for both the Z and X genes are crossed, what are the chances that the offspring will have purple kernels? Enter your answer as a decimal fraction in the box (e.g. 0.25).
In rabbits, the dominant allele B causes black fur and the recessive allele b causes brown fur; for an independently assorting gene, the dominant allele R causes long fur and the recessive allele r causes short fur. A homozygous rabbit with long, black fur is crossed with a rabbit with short, brown fur, and the offspring are intercrossed. In the F2, what proportion of the rabbits with long, black fur will be homozygous for both genes? Show drawings and solution.
Most of the individuals of a certain wildflower population have yellow flowers, although a few are white-flowered. Crosses have demonstrated that allele for yellow flower (Y) is dominant over the allele for white (y). If two white flowered plants are crossed, what fraction of their offspring do you expect to be YELLOW? Show your solution with punnet square
In Andalusian fowls, black (BB) and white (bb) individuals are homozygous. When a homozygous black bird (BB) is crossed with a homozygous white (bb) bird offspring are all bluish-gray (Bb). Show the cross as well as the genotypes and phenotypes of the parental cross between two heterozygous parents. 1. P1: _________ x _________ 2. Punnett Square: 3. Genotype symbols: 4. Genotype in words: 5. Genotypic ratio: 6. Genotypic %: 7. Phenotype symbols: 8. Phenotype in words: 9. Phenotypic ratio: 10. Phenotypic %:
A particular walnut rooster was crossed to a pea hen, and the progeny consisted of 12 walnut, 11 pea, 3 rose, and 4 single chickens. What are the likely genotypes of the parents?
In a study of black guinea pigs and white guinea pigs, 100 black animals were crossed with 100 white animals, and each cross was carried to an F2 generation. In 94 of the crosses, all the F1 offspring were black and an F2 ratio of 3 black:1 white was obtained. In the other 6 cases, half of the F1 animals were black and the other half were white. Why? Predict the results of crossing the black and white F1 guinea pigs from the 6 exceptional cases.