Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN: 9780134580999
Author: Elaine N. Marieb, Katja N. Hoehn
Publisher: PEARSON
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- Fur color is codominant in cows. A roan cow has a fur color of orange and white. What are the
phenotype and genotypic ratios expected if a roan male and a roan female breed together?
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- What genotype and phenotype ratios would you expect if you crossed a pure breeding gray mouse with a heterozygous mouse?arrow_forwardJoe has a white cat named Sam. When Joe crosses Sam with a black cat, he obtains ½ white kittens and ½ black kittens. When the black kittens are interbred, all the kittens that they produce are black. > Is Sam's genotype homozygous dominant, homozygous recessive, or heterozygous? Based on these results, which coat color in cats would you conclude is a recessive trait? 1. white 2. black 3. homozygous dominant 4. homozygous recessive 5. heterozygousarrow_forwardIn humans, the gene for right-handedness is dominant to the gene for left-handedness. A man and a woman both heterozygous for this trait marry. What percent of their children can they expect to be right-handed? What percent left-handed? What are the genotypic and phenotypic ratios?arrow_forward
- In a species of fish, the allele for long fins (F) is dominant over the allele for short fins (f). What will be the genotype and phenotype ratios for offspring do we get if we cross a long-finned homozygous male fish with heterozygous long-finned female fish? Questions: a. What are the possible genotypes of the egg the woman can produce? b. What are the possible genotypes of the sperm the man can produce? c. What is the genotype ratio for the offspring? d. What is the phenotype ratio for the offspring?arrow_forwardRabbit fur is determined by multiple alleles. Solid color is controlled by the Ic allele, the chinchilla by the Ich allele, the Himalayan by Ih and the albino by i. The dominance hierarchy of these alleles is Ic> Ich> Ih> i. Write the gametes that a HIMALAYAN rabbit would form [x1]arrow_forwardReferring to the pattern of inheritance of comb type and feathering in chicken, consider the cross between the following: a hen heterozygous for hen feathering and walnut comb and a cock feathered roster with single comb. What are the genotypes and phenotypes of their male and female offspring?arrow_forward
- In mice the ability to run normally is a dominant trait. Mice with this trait are called running mice. The recessive trait causes mice to run in circles only. Mice with this trait are called waltzing mice. Hair color is also inherited in mice. Black hair is dominant over brown hair. Cross a homozygous running heterozygous black mouse with a waltzing brown mouse. What percentage of the offspring will be waltzing with black hair?arrow_forwardWithin a mouse population, the black fur allele (B) is dominant to the white fur allele (b) and the short whisker allele (S) is dominant to the long-whisker allele (s). A heterozygous black-furred short-whiskered mouse is crossed with a homozygous white-furred long-whiskered mouse. What percentage of the offspring will be black-furred with long whiskers?arrow_forwardIf a tortoise shell colored female cat is bred with a black male cat, what is the percentage of the kittens being a black female, black male, yellow female, yellow male, tortoise colored female, or a tortoise colored male?arrow_forward
- If a Rottweiler is crossed with a Labrador retriever, what will be the coat color of the offspring: solid, yellow, saddle, or bicolor?arrow_forwardIn seals, long whiskers (W) are dominant over short whiskers (w). What are the genotypic and phenotypic ratios for the offspring produced by mating a seal that is homozygous recessive with one that is heterozygous?arrow_forwardusing a Punnett square, what will the offspring look like when the parents are Bb and Bb. B = dominant black hair and b = recessive blue hair. So what percentage of the offspring will have black hair vs blue hair?arrow_forward
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