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- 2. Law of Independent Assortment If a pure-breeding (homozygous) black (dominant), long-haired (recessive) cat is mated to a pure-breeding Siamese, short-haired cat, and one of their male offspring is mated to one of their female offspring, what is the chance of producing a Siamese colored, short-haired kitten?8. In certain breeds of dogs, two different sets of alleles determine the color pattern. Black color is dominant and red color is recessive; solid color is dominant and white spotting is recessive. A homozygous black-and-white spotted male is crossed with a red-and-white spotted female. What is the probability of their producing a solid black puppy? Show your work.4. The ruffed chicken has an under-chin wattle. A smooth wattle (S) is dominant over a wrinkled wattle (s). A red wattle (HR) is incompletely dominant with a white wattle (HW) so that an individual with HRHW will have a pink wattle. A chicken with a wrinkled red wattle is mated to a homozygous chicken with a smooth white wattle. What is the genotype and phenotype of the chicks?
- 1. Chinchillas are small, furry South American rodents. They were originally brought to the United States from Chile in 1918 and raised for their fur, and have become increasingly popular as cage pets. They come in a variety of colors, but the most common is gray. In chinchillas, gray fur is dominant to violet. If one parent is gray HETEROZYGOUS, and the other is violet, what is the probability in their offspring of: being homozygous dominant? ________% being heterozygous? ________% being homozygous recessive? ________% having violet fur? ________% 2. Trixie, a former cheerleader, just had a child. She isn't sure who the father is. Carrie is blood type A and the baby is type AB. Use your knowledge of genetics to help Trixie, and indicate whether each of the following men COULD be the father. If he could be the father, put down Yes. If not, just say No, which is perhaps what Trixie should have done. #9, the quarterback, who is type A homozygous ______ #10, the…2 (a) The trait of hen- versus cock-feathering is a sex-limited trait controlled by a single gene. HH and Hh males always exhibit the hen-featuring trait. Only hh males show the cock-feathering trait. Starting with two heterozygous fowls that are hen- feathered, describe how you would obtain a true-breeding line that always produces cock-feathered males. [Ciri berhulu avam hatin5. a. Black coat color in Cocker Spaniels is governed by a dominant allele (B) and red coat color (b) by a recessive allele. Solid pattern (S) is governed by the dominant allele of a different gene and spotted pattern (s) is recessive. A solid black male is mated with a solid red female which produces a litter of 6 pups- 2 solid black, 2 solid red, one black and white (spotted) and one red and white (spotted). Determine the genotypes of the parents. Show your work and/or explain your logic. b. A dominant gene A causes yellow color in rats. The dominant allele of another gene, R, produces black coat color. When the two dominants occur together (A_R_), they interact to produce grey. Rats with the genotype aarr are cream-colored. If a grey male and a yellow female are mated and produce 3 grey, 3 yellow, 1 cream and 1 black offspring, Determine the genotypes of the parents. Show your work and/or explain your logic. C. One gene for coat color in cats is sex-linked (X chromosome). The…
- 1. In cattle, the hornless condition (H) is dominant and the horned condition (h) is recessive. bull without horns is crossed with a cow without horns. Of the four offspring, one (1) is horn and three (3) are hornless. Using Punnett squares, determine the genotype of the parental bul and the cow.3. Black coat (B) color in Cocker Spaniels is dominant, while red coat (b) color is recessive; solid pattern (S) is dominant, while spotted (s) pattern is recessive. Create a Punnett square that shows all of the possible offspring of a solid black male (BBSs) mated to a solid red female (bbSs). Include the percentage/ratio of occurrence for each phenotype. Include the percentage/ratio of occurrence for each phenotype.5A. In shorthorn cattle, the polled condition is dominant over horned. Also, the heterozygous condition (RW) of red coat (R) and white coat (W) is roan, an example of codominance. (The roan coat contains both red and white fur because neither allele is dominant over the other). If a homozygous polled, white male is bred to a horned, red female, what will be the appearance of the F1 generation? Horned: r: Roan Coat: a. Possible genotypes for Polled condition Coat:_ ossible geno c. Male genotype: d. Female genotype: Male possible gametes Female possible gametes e. f. Genotypic Ratio: g. Phenotypic Ratio 5B, Breed two of the F1 generation to determine the possibilities in the F2 generation. Horned: a. Possible genotypes for Polled condition b. Possible genotypes for Red coat: White Coat:_ Roan Coat: c. Male genotype: d. Female genotype Male possible gametes Female possible gametes: f. Genotypic Ratio: g. Phenotypic Ratio
- 5A. In shorthorn cattle, the polled condition is dominant over horned. Also, the heterozygous condition (RW) of red coat (R) and white coat (W) is roan, an example of codominance. (The roan coat contains both red and white fur because neither allele is dominant over the other). If a homozygous polled, white male is bred to a horned, red female, what will be the appearance of the F1 generation? a. Possible genotypes for Polled condition: Horned: b. Possible genotypes for Red coat:White Coat: Roan Coat: c. Male genotype Male possible gametes: Female genotypeFemale possible gametes: e. f. Genotypic Ratio: g. Phenotypic Ratio:17. Three recessive traits in aardwolf (a real animal) are stripe-less (s), dwarf (d), and fluffy mane (f). A stripe-less and fluffy female aardwolf mates with a dwarf male aardwolf to produce an F1 that is all WT (has stripes, normal size, and non-fluffy mane). When an F1 is test crossed to a fully recessive aardwolf, the following F2 are produced: Stripe-less, fluffy, normal sized 89 Striped, non-fluffy, dwarf 92 Stripe-less, non-fluffy, dwarf 1 Striped, fluffy, normal sized 2 11 13 19 2010. If B=brown eyes and b=blue eyes, and a man with brown eyes and a woman with blue eyes have a child with blue eyes, what is the genotype of the man for eye color? Assume complete dominance. * BB ВB or Bb Bb brown can't tell without more information