In a mystical bird species, birds with the dominant allele C are white, whereas birds homozygous for the recessive allele c are colored. This species also have a second locus that acts as a modifier gene if the bird is colored. If birds are colored and are G-at the second locus, they will be yellow. If they are colored and gg at the second locus, they will be green. You cross a double heterozygous bird and a double homozygous recessive (CcGg x ccgg). What percentage of the offspring will be yellow, and what percentage will be white? O 25, 25 O 50, 50 O50, 25 33,33 25,50

In a mystical bird species, birds with the dominant allele C are white, whereas birds homozygous for the recessive allele c are colored. This species also have a second locus that acts as a modifier gene if the bird is colored. If birds are colored and are G-at the second locus, they will be yellow. If they are colored and gg at the second locus, they will be green. You cross a double heterozygous bird and a double homozygous recessive (CcGg x ccgg). What percentage of the offspring will be yellow, and what percentage will be white? O 25, 25 O 50, 50 O50, 25 33,33 25,50

BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)

10th Edition

ISBN:9781305967359

Author:STARR

Publisher:STARR

Chapter13: Patterns In Inherited Traits

Section: Chapter Questions

Problem 6GP: In sweet pea plant, an allele for purple flowers (P) is dominant when paired with a recessive allele...

See similar textbooks

Similar questions

You decide to breed a pair of guinea pigs, one black and one white. In guinea pigs, black fur is caused by a dominant allele (B) and white is due to homozygosity for a recessive allele (b) at the same locus. Your guinea pigs have seven offspring, four black and three white. What are the genotypes of the parents? Why is there a 1:1 ratio in this cross?
A genetic engineer is going to cross two watermelon plants to produce seeds for a spring planting. He is breeding for size, and wants to have as many watermelons with the phenotype for long shape as possible. In watermelons, the allele for short shape (R) is dominant to the allele for long shape (r). Would crossing a watermelon homozygous recessive for the trait with a watermelon heterozygous for the trait give the most long watermelons possible? Explain your answer using Punnett Squares.
Suppose that in a species of mouse, the gene for brown coat color is dominant over the color black. Another gene (C) is responsible for depositing color on the hair. A single dominant allele (C) is sufficient for the color (black or brown) to be deposited on the hairs; those without a copy of the dominant allele are albino. A female mouse homozygous recessive for both characters is crossed with a male mouse heterozygous for both characters. A) Give the phenotypic ratio of the progeny of F1. (Punnet grid if possible) B) What proportion of the offspring of the F1 will have the same genotype as either of its parents?
Gene S controls the sharpness of spines in a type of cactus. Cactuses with the dominant allele have sharp spines, whereas homozygous recessive cactuses have dull spines. At the same time, a second gene, N, determines whether or not cactuses have long or short spines. Homozygous recessive cactuses have short spines. A cross between a homozygous sharp-long cactus and a dull short-spined cactus would produce what percentage of sharp-long cacti?
Gene S controls the sharpness of spines in a type of cactus. Cactuses with the dominant allele have sharp spines, whereas homozygous recessive cactuses have dull spines. At the same time, a second gene, N, determines whether or not cactuses have long or short spines. Homozygous recessive cactuses have short spines. A cross between a homozygous sharp-long cactus and a dull short-spined cactus would produce what percentage of sharp-long cacti? Show your Punnett square please.
In flies, small wings are recessive to normal wings. If a cross between two flies produces 8 small-wing offspring and 28 normal-wing offspring, what are the most likely genotypes of the parents? (Use SS to represent the normal-wing allele and ss to represent the short-wing allele.)
Guinea pigs have coats that are either rough or smooth. Rough coats are dominant, so they are represented by (R), and smooth coats are recessive, so they are represented by (r). If we crossed a homozygous rough-coated guinea pig with a smooth-coated guinea pig, what are the phenotypic and genotypic ratios?
In an example of recessive epistasis the deposition of pigment into hair follicles of the Labrador Retriever is governed by a dominant gene (C) and lack of deposition by its recessive allele (c). Lack of pigment deposition produces a yellow coat color. The color of pigment is governed by an independently assorting hypostatic gene, the dominant allele (B) produces black pigment and its recessive allele (b) produces brown. What coat color ratio is expected from the cross of a brown dog (bbCc) to a black dog (BbCc)? 3/8 black, 1/8 brown, 1/2 yellow 3/8 black, 3/8 brown, 1/4 yellow 1/2 brown, 1/2 black 1/2 black, 1/4 brown, 1/4 yellow 1/4 black, 1/4 brown, 1/2 yellow
In a population of pea plants, there are two variations for flower colors-- purple and white. The allele for purple is dominant, but the white allele is recessive. If a test-cross is performed and 1000 plants are coiunted, approximately how many plants will have white flowers?
In a test cross, an individual dominant for a certain trait ( whether homozygous or heterozygous is unknown) is crossed with a homozygous recessive individual. A plant with spherical seeds is crossed with another plant. If the genotypes and phenotypes of the offspring are 100% heterozygous and 100% dominant, what were the genotypes of the parents? (hint: try multiple crosses until you find what works) If the genotypes and phenotypes of the offspring are 50% heterozygous spherical seeds and 50% wrinkled seeds, what were the genotypes of the parents?
Parakeets can have white, blue, green or yellow feathers. Feather color in parakeets is determined by two different genes Y and B. YYBB, YYBb, YyBB, or YyBb is green; yyBB or yyBb is blue; YYbb or Yybb is yellow; and yybb is white. A green parakeet with genotype YYBB is crossed with a white parakeet. Which of the following would be expected? green offspring yellow offspring blue offspring A and B A, B, and C
In rabbits, black fur (F) is dominant to white fur (f). You decide to cross a rabbit that is homozygous dominant for fur color with a rabbit that is heterozygous for fur color. Set up a Punnett Square for this cross and then answer the following questions. What percentage of offspring will have the FF phenotype?What percentage of offspring will have the ff phenotype?What percentage of offspring will have the Ff phenotype?