Four coat color phenotypes occur in mice, Cream (C), Brown (R), Gray (G) and Black(B). Use the following crosses to determine the dominance sequence of the allelesand indicate the parental genotypes.CrossParent Phenotype |OffspringParental GenotypesGray X Black10 Gray2Black X Cream5 Black, 5 Brown3Brown X Brown7 Brown, 3 Cream4Gray X Brown5 Gray, 5 Black

Inheritance is the process of transmitting the traits from parent to offspring. Traits of an…

Answered: Four coat color phenotypes occur in…

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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Given a cross between these two parents: BbCcDDEEFfGgHhjj x BbCcddEeFfGgHHjj where traits B, E, H, J exhibit Mendelian inheritance; C, and F exhibit incomplete dominance; D, and G exhibit co-dominance answer the following: What proportion of the offspring will genotypically resemble the second parent?
: In poultry, the genotype-phenotype relationships for comb shape are R/– P/–, walnut; R/–p/p, rose, r/r P/–, pea; and r/r p/p, single. What will be the comb characters of the offspring ofthe following crosses?a) A walnut crossed with a single produces offspring that are walnut, rose, pea, and single.b) A rose crossed with a walnut produces offspring that are walnut, rose, pea, and single.c) A rose crossed with a pea produces five walnut and six rose offspring.d) A walnut crossed with a walnut produces one rose, two walnut, and one singleoffspring
Given a cross between these two parents: BbCcDDEEFfGgHhJj x BbCcddEeFfGgHHjj where traits B, E, H, J exhibit Mendelian inheritance; C, and F exhibit incomplete dominance; D, and G exhibit co-dominance answer the following: How many possible gametes can the first individual produce? What proportion of the offspring will phenotypically resemble the first parent? What proportion of the offspring will genotypically resemble the second parent? How many phenotypes can be expected from the cross?
In dogs, wire-haired (S) is dominant to smooth-haired (s). In a cross of a homozygous wire-haired with a smooth-haired dog, what will be the phenotype of the F1 generation? What would be the genotype? What would be the ratio the wire-haired dogs in the F1 generation? What are the genotypic ratio and phenotypic ratio?
In cattle, coats may be solid white, solid black, or black-and-whitespotted. When true-breeding solid whites are mated with truebreeding solid blacks, the F1 generation consists of all solid white individuals. After many F1 * F1 matings, the following ratio was observed in the F2 generation: 12/16 solid white3/16 black-and-white spotted1/16 solid black Explain the mode of inheritance governing coat color by determining how many gene pairs are involved and which genotypes yield which phenotypes. Is it possible to isolate a true-breeding strain of black-and-white spotted cattle? If so, what genotype would they have? If not, explain why not.
. In four-o’clocks, the allele for red flowers is incompletely dominant to the allele for white flowers, so heterozygotes have pink flowers. What ratios of flower colors would you expect among the offspring of the following crosses: (a) pink × pink, (b) white × pink, (c) red × red, (d) red × pink, (e) white × white, and (f) red × white? If you specifically wanted to produce pink flowers, which of these crosses would be most efficient?
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 guinea pigs, black hair is dominant over white hair. If a homozygous black guinea pig (father) were crossed with a homozygous white guinea pig (mother), the first generation of offspring would be all black.Match the mother's and father's genotypes and phenotypes to their correct description. 1. mother's phenotype 2. father's phenotype 3. father's genotype 4. mother's genotype a. black b. HH c. white d. hh
Given a cross between these two parents: BbCcDDEEFfGgHhjj x BbCcddEeFfGgHHjj where traits B, E, H, J exhibit Mendelian inheritance; C, and F exhibit incomplete dominance; D, and G exhibit co-dominance answer the following: How many phenotypes can be expected from the cross?
.) A female poodle with green eyes (recessive) and yellow spots on her tongue (recessive) was bredwith a male poodle who was the wild-type phenotype but hybrid genotype for those same two traits.In a series of litters, this breeding pair gave birth to the following 85 puppies:39 Normal eyes, normal tongue36 Green eyes, yellow-spot tongue6 Green eyes, normal tongue4 Normal eyes, yellow-spot tonguea.) Use the symbols grn and grn+ for the green eyes gene, and yel and yel for the yellow tonguegene and give the genotypes of the parents of this cross. (Remember, each parent has twoalleles for each gene.)b.) Now give the expected genotypes of the offspring.c.) If these two genes were unlinked, given the way the cross was constructed, what ratio wouldyou expect to see among the four categories of offspring shown here?d.) Now match up the expected phenotypes (answer to 2b) with the actual offspring.e.) Which categories of dogs are “parental types” and which are recombinant types?f.) Do these…
In alley cats, the coat color is determined by a gene carried on the X-chromosome. At the same time, the alleles are expressed as intermediate (incomplete-dominance) inheritance. Genotypes and color are as follows: Females: X ^ b * X ^ b =yellow X^ B X ^ b = calico X ^ B * X ^ B =black Males: X ^ y * Y =yellow X ^ B * Y=bhck (a) A black cat has a litter of seven kittens: three black males, one black female and three calico females. Comment on the probable paternity of this litter and explain.
In rabbits, black color (B) is dominant to brown (b), while fullcolor (C) is dominant to chinchilla (c ch). The genes controllingthese traits are linked. Rabbits that are heterozygous for bothtraits and express black, full color are crossed to rabbits thatexpress brown, chinchilla with the following results:31 brown, chinchilla 34 black, full16 brown, full 19 black, chinchillaDetermine the arrangement of alleles in the heterozygousparents and the map distance between the two genes.

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