In need of assistance. Please help answer the following.
1) Pure-breeding yellow guinea pigs crossedwith pure-breeding white guinea pigs produce only cream-coloredoffspring. This pattern indicates incomplete dominance. Rough hairis found to be dominant to smooth hair. Give the F1 and F2genotypic and phenotypic ratios of a cross of a smooth white guineapig with a homozygous rough yellow guinea pig.
2) A breeder of cattle has a herd of white cowsand a roan bull. Hair color in this breed is controlled by anincomplete dominant gene. The two homozygous forms are either redor white, and the heterozygous is roan. Answer the followingquestions please
What color calves are expected and in whatproportion?
Outline a procedure to develop an all-redherd.
3) In horses, black coat color is influenced bythe dominant allele (B), and chestnut coat color is influenced bythe recessive allele (b). Trotting gait is due to a dominant gene(T), pacing gait to the recessive allele (t). If a homozygous blacktrotter is crossed with a chestnut pacer:
What will be the appearance of the F1 and F2generations?
Which phenotype will be the most common?
Which genotype will be the most common?
Which of the potential offspring will be certain tobreed true?
4) In garden peas, one pair of alleles controlsthe height of the plant and a second pair of alleles controlsflower color. The allele for tall (D) is dominant to the allele fordwarf (d), and the allele for purple (P) is dominant for the allelefor white (p). A tall purple crossed with a tall purple produces ¾tall purple and ¼ tall white. What is the genotype of the parents?
5) Three alleles control the ABO blood types.IA and IB are codominant genes, so thecombination of IAIB produces the AB bloodtype. The third allele Iois recessive to the other twoalleles. Indicate which of these parents could produce the givenchild and submit your response to the instructor.
A X AB produce B child.
A X O produce A child.
A X B produce O child.
A X AB produce O child.
A X AB produce B child.
B X B produce O child.
AB X AB produce A child.
In need of assistance. Please help answer the following.
1) Pure-breeding yellow guinea pigs crossedwith pure-breeding white guinea pigs produce only cream-coloredoffspring. This pattern indicates incomplete dominance. Rough hairis found to be dominant to smooth hair. Give the F1 and F2genotypic and phenotypic ratios of a cross of a smooth white guineapig with a homozygous rough yellow guinea pig.
2) A breeder of cattle has a herd of white cowsand a roan bull. Hair color in this breed is controlled by anincomplete dominant gene. The two homozygous forms are either redor white, and the heterozygous is roan. Answer the followingquestions please
What color calves are expected and in whatproportion?
Outline a procedure to develop an all-redherd.
3) In horses, black coat color is influenced bythe dominant allele (B), and chestnut coat color is influenced bythe recessive allele (b). Trotting gait is due to a dominant gene(T), pacing gait to the recessive allele (t). If a homozygous blacktrotter is crossed with a chestnut pacer:
What will be the appearance of the F1 and F2generations?
Which phenotype will be the most common?
Which genotype will be the most common?
Which of the potential offspring will be certain tobreed true?
4) In garden peas, one pair of alleles controlsthe height of the plant and a second pair of alleles controlsflower color. The allele for tall (D) is dominant to the allele fordwarf (d), and the allele for purple (P) is dominant for the allelefor white (p). A tall purple crossed with a tall purple produces ¾tall purple and ¼ tall white. What is the genotype of the parents?
5) Three alleles control the ABO blood types.IA and IB are codominant genes, so thecombination of IAIB produces the AB bloodtype. The third allele Iois recessive to the other twoalleles. Indicate which of these parents could produce the givenchild and submit your response to the instructor.
A X AB produce B child.
A X O produce A child.
A X B produce O child.
A X AB produce O child.
A X AB produce B child.
B X B produce O child.
AB X AB produce A child.
