Trait Allele Effect CH CW Feather colour Produces black feathers in homozygotes Produces white feathers in homozygotes Produces straight feathers in homozygotes Produces frizzled feathers in homozygotes Feather shape S

Trait Allele Effect CH CW Feather colour Produces black feathers in homozygotes Produces white feathers in homozygotes Produces straight feathers in homozygotes Produces frizzled feathers in homozygotes Feather shape S

Human Biology (MindTap Course List)

11th Edition

ISBN:9781305112100

Author:Cecie Starr, Beverly McMillan

Publisher:Cecie Starr, Beverly McMillan

Chapter19: Introduction To Genetics

Section: Chapter Questions

Problem 9CT

See similar textbooks

Related questions

Q: In Dogs, short tail (t) is recessive to long tail (T). A true-breeding (homozygous) short-tailed…

A: Genotype refers to the genetic material that is passed from one generation to another. Phenotype is…

Q: In cats, short hair is dominant to long hair and extra toes is dominant to normal number of toes. If…

A: Mendel performed various types of crosses to study the inheritance of a character however, all…

Q: The ability to taste PTC paper is controlled by a dominant allele. The ability to taste (T) is…

A: Two tasters, normally pigmented, have an albino son and a non-taster daughter. This means both the…

Q: Using Punnett Squares to Understand Inheritance Scenario 3: A one-eyed flying people-eater usually…

A: Ans- The possible genotypes of their offspring will be: Pp and pp

Q: In Dalmatians, black spots are dominant to the condition of not having black spots. A black-spotted…

A: Dominant allele will exhibit it effect even if it is present in heterozygous condition, meaning only…

Q: Corgi fur color is controlled by two genes A and B. Gene A is the epistatic gene. Gene B determine…

A: Answer:

Q: Deafness in cocker spaniels is inherited. The allele for deafness (d) is recessive to the allele for…

A: The mutation of the gene results in changes in the base sequence of the DNA resulting in a variant…

Q: n a species of fly, the allele for red eyes (R) is dominant to the allele for brown eyes (r).…

A: Mendel's law of dominance states that in a heterozygote, one trait will conceal the presence of…

Q: A dominant allele W confers black fur on guinea pigs. A guinea pig that is homozygous recessive (ww)…

A: A monohybrid cross is a genetic mix of two people with homozygotic genotypes or genotypes with…

Q: Suppose you crossed Individual #3 with Individual #4. Predict the type(s) of offspring that could…

A: DNA gel electrophoresis can be used to determine the genotypes of the parents as well as their…

Q: A genotypic ratio of 2:4:2:2:4:2 is possible between a male who is heterozygous free earlobes and…

A: A trait is a characteristic feature that is unique to particular individual . A dihybrid cross is a…

Q: Trait R is a Mendelian trait in humans for tongue rolling. The allele for the ability to roll the…

Q: The cystic fibrosis allele is recessive. The frequency of cystic fibrosis is 0.000484, or about one…

A: The Hardy-Weinberg principle asserts that if a population is not susceptible to genetic drift, gene…

Q: The dominance pattern oi a gene can de determinea irom ine pnenotypes oI ine parents ana offspring.…

A: Organisms express certain characters based on the expression of alleles of the gene. Often alleles…

Q: fx D. H. 1. A 11. In cabbage butterflies, white wings (W) are dominant to yellow wings (w). A…

A: Q11. It is given that W allele in cabbage butterfly is dominant and codes for white wings and w…

Q: If otters that are brown & white combine to make a new 3rd phenotype, a tan otter, what type of…

A: Inheritance or heredity is defined as the process involved with the transfer of genetic information…

Q: In cattle, hair color is controlled by incomplete dominance. Red results from homozygous dominant…

A: Given: In cattle, hair color is controlled by incomplete dominance. Homozygous dominant alleles (RR)…

Q: Punnett Squares Complete the Punnett Square. Find probability of each phenotype in the offspring. Nn…

A: From the monohybrid cross, Mendel’s law of segregation was given. According to this law, when two…

Q: Supposed a male Lab, homozygous dominant for both alleles, is crossed with a female Lab, homozygous…

A: Labrador is a type of dog. General colours of labrador are 1.Black 2.chacolate 3.yellow As per…

Q: The gene for red/green colour blindness (g) is a recessive sex-linked trait. The gene for eye colour…

A: The genes are the primary unit of life. The nucleotide sequence of the genes are responsible for…

Q: In cattle, a red bull (R R R R ) is crossed with a white cow (R W R W ), the heterozygous offspring…

Q: In fruit flies, yellow body is a sex linked recessive allele. The dominant allele is dark bodied. If…

A: This is the chart showing genotype as well as phenotype of the parent fruit flies. Q1. Now with…

Q: In cattle, black coat (R), is dominant to red coat (r). Hornless (H), is dominant to horned (h). A…

Q: the allele (B) produces black color but (b) producesyellow color. These alleles are co‐dominant to…

A: Alleles are considered as the variant of the gene. DNA is composed of different nucleotides that…

Q: Hello Heliodors! (cont.) Trait B Heliodors are either red (R), yellow (Y) or an intermediate…

A: The option 4 is correct. i.e. 1 red :2 orange :1 yellow.

Q: a species of fly, the allele for red eyes (R) is dominant to the allele for brown eyes (r). Students…

A: Phenotypic ratio is the ratio that shows the varied outcomes that results from a genetic cross and…

Q: The allele for widows peak (H) is dominant for the allele for no widows peak (h). At a different…

A: Hello. Since you have posted multiple questions and not specified which question needs to be solved,…

Q: In cats, pointed ears are dominant to round ears. A homozygous recessive cat (ee) is bred with a…

A: It’s given that pointed ear is dominant over the round ear. E will always be dominant over e. We…

Q: Second Generątion t 2017 FlipSwitch If being tall is dominant in pea plants, which generations…

Q: What are the chances that teh child will not like the Cilantro? a) 25% b) 50% c) 0% d)100%

A: Cilantro (aka the leaves of the coriander plant) is a tasty herb to most people. A pleasing…

Q: chickens, comb shape is determined by alleles at twa loci (R. And P.) Walnut comb is produced w atan…

A: The given question can be solved by drawing a punnett square for each situation.

Q: Widows peak(W) is dominant over straight hairline(w). Dimples(D) is dominant over no dimples(d). A…

A: We have, Genotype of the man - wwDd (straight hairline with dimple) Therefore, gametes produced by…

Q: In holstein cattle, the allele for solid coat color (R) is autosoal dominant over the allele for…

A: A gene is the functional unit of inheritance. It contains two alleles. Offspring receive a haploid…

Q: The presence of second allele (E) affects the coat color of German Shepherd. In particular, the…

A: Dogs' coats come in a variety of colours, patterns, textures, and lengths. The colour of a dog's…

Q: Alleles that show incomplete dominance will represent: Choose oneAnswer: A . heterozygotes that…

A: Incomplete dominance is an important concept in the study of genetics. It refers to a circumstance…

Q: Hello Heliodors! (cont.) Trait C The shape of a heliodor is an X-linked trait. Male heliodors…

A: The helidor shape is encoded by the genes present on the X chromosome. This is a X linked recessive…

Q: Alelle D is dominant for dimples whereas alelle d is recessive for dimples. A person who has dimples…

A: The variation of a gene that occurs at the same locus of a chromosome is called an allele. There are…

Q: In humans’ widows peak is inherited by possession of a dominant allele W. If a man who is homozygous…

A: A widow's peak in human, is a V shaped point in the hairline in the centre of forehead. It is…

Q: n an example of recessive epistasis the deposition of pigment into hair follicles of the Labrador…

A: Given: An example of recessive epistasis: the deposition of pigment into hair follicles of the…

Q: Rabbit fur is determined by multiple alleles.

A: Rabbit coat color is determined by a combination of alleles. This implies that a single gene can…

Q: - allele frequencies.

A: The correct option is . C . Allele frequencies

Q: 96% of Florida panther population has normal tails. 4% of the Florida panther population has the…

A: Answer 1 Normal tail (Dominant) = P Crook in the tail (Recessive ) = q According to hardy Weinberg…

Q: In cabbage butterflies, white wings (W) are dominant to yellow wings (w). A 11. heterozygous…

A: It is given that W allele encodes white wing. It is dominant over w allele. The ww genotype encodes…

Q: For each genotype, indicate the phenotype: The freckles allele (F) is dominant to the no freckles…

A: Genes are the hereditary currency of an organisms. Mating between two individuals gives rise to a…

Q: BbRrppMm X bbRrPpMM: probability of producing an individual that is dominant for B & M and recessive…

A: Genes come in pairs and are responsible for the inheritance and expression of the associated…

Q: Lincoln Red cattle are entirely red. Hereford cattle have a white face. The white face is due to a…

A: The non-white faced variant of the white faced gene is homozygous in all red cows. The lincoln cow…

Q: Having a widows peak is dominant W to not having one (ww) Having attached earlobes is a recessive…

A: Introduction Dominant traits are those phenotypic characteristics or properties which are inherited…

Q: Hello Heliodors! (cont.) Trait C The shape of a heliodor is an X-linked trait. Male heliodors…

A: In genetics,Genes are the hereditary units of life. Genes contains two alternative forms called…

Q: You are investigating gene interaction in guinea pigs. When you cross two heterozygous wild type…

A: In pleiotropy: single gene control more than one type of trait. That is single mutation or gene…

Concept explainers

Marine Evolution

Marine habitat is less explored, and hence, its biological diversity is far less known. The marine habitats are not constant due to their shifting nature, while the terrestrial habitats are more stable. Marine biology is the science that deals with the study of diverse marine species, their interactions, and behavioral characteristics.

Question

In domestic chicken, feather colour and shape are two traits which are controlled by autosomal
alleles that are co-dominant. Table 2 shows the alleles and phenotype of both traits. The
heterozygous state for feather colour is grey while the heterozygous state for feather shape is mildly
frizzled.
TABLE 2
Trait
Feather colour
Allele
CB
CW
SS
SF
Effect
Produces black feathers in homozygotes
Produces white feathers in homozygotes
Produces straight feathers in homozygotes
Produces frizzled feathers in homozygotes
Feather shape
A farmer bred a black frizzled rooster with a grey mildly frizzled hen. Draw a genetic diagram to
show the expected results of this cross. Include in your answer the phenotypic ratios.
Is it necessary to do a test cross to determine the genotypes of the offspring? Explain your answer.
The farmer would like all his chickens grey and mildly frizzled. What would you advise him to do?
Explain your answer.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.

Similar questions

Two alleles at one locus produce three distinctphenotypes. Two alleles of two genes lead tofive distinct phenotypes. Two alleles of six geneslead to 13 distinct phenotypes. (These statementsassume that the alleles at any one locus arecodominant or incompletely dominant andthat each gene makes an equal contributionto the phenotype.)a. Derive a formula to express this relationship. (Letn equal the number of genes.)b. Each of the most extreme phenotypes for a traitdetermined by two alleles at one locus are foundin a proportion of 1/4 in the F2 generation. If twoalleles of two genes determine the trait, each extreme phenotype will be present in the F2 as 1/16of the population.In common wheat (Triticum aestivum),kernel color varies from red to white andthe genes controlling the color act additively,that is, alleles for each gene are incompletelydominant and each gene contributes equallyto the color. A true-breeding red variety iscrossed to a true-breeding white variety, and1/256 of the F2…
In domestic chicken, feather colour and shape are two traits which are controlled by autosomal alleles that are co-dominant. Table 2 shows the alleles and phenotype of both traits. The heterozygous state for feather colour is grey while the heterozygous state for feather shape is mildly frizzled. TABLE 2 Trait Allele Effect Feather colour CB Produces black feathers in homozygotes CW Produces white feathers in homozygotes Feather shape SS Produces straight feathers in homozygotes SF Produces frizzled feathers in homozygotes (a)A farmer bred a black frizzled rooster with a grey mildly frizzled hen. Draw a genetic diagram to show the expected results of this cross. Include in your answer the phenotypic ratios. (b)Is it necessary to do a test cross to determine the genotypes of the offspring? Explain your answer. (c)The farmer would like all his chickens grey and mildly…
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.
In Drosophila, the autosomal recessive dp allele ofthe dumpy gene produces short, curved wings, whilethe autosomal recessive allele bw of the brown genecauses brown eyes. In a testcross using femalesheterozygous for both of these genes, the followingresults were obtained:wild-type wings, wild-type eyes 178wild-type wings, brown eyes 185dumpy wings, wild-type eyes 172dumpy wings, brown eyes 181In a testcross using males heterozygous for both ofthese genes, a different set of results was obtained:wild-type wings, wild-type eyes 247dumpy wings, brown eyes 242a. What can you conclude from the first testcross?b. What can you conclude from the second testcross?c. How can you reconcile the data shown in parts (a)and (b)? Can you exploit the difference betweenthese two sets of data to devise a general test forsynteny in Drosophila?d. The genetic distance between dumpy and brown is91.5 m.u. How could this value be measured?
Figure 19-11 shows the expected distributions for thethree genotypic classes if the B locus is a QTL affectingthe trait value.a. As drawn, what is the dominance/additive (D/A)ratio?b. How would you redraw this figure if the B locus hadno effect on the trait value?c. How would the positions along the x-axis of thecurves for the different genotypic classes of the B locuschange if D/A = 1.0?
Labrador retrievers may be black, brown, or golden in color (seethe chapter opening photograph on p. 53). Although each colormay breed true, many different outcomes occur if numerous littersare examined from a variety of matings, where the parentsare not necessarily true-breeding. The following results showsome of the possibilities. Propose a mode of inheritance that isconsistent with these data, and indicate the corresponding genotypesof the parents in each mating. Indicate as well the genotypesof dogs that breed true for each color.(a) black * brown ¡ all black(b) black * brown ¡ 1/2 black1/2 brown(c) black * brown ¡ 3/4 black1/4 golden(d) black * golden ¡ all black(e) black * golden ¡ 4/8 golden3/8 black1/8 brown(f) black * golden ¡ 2/4 golden1/4 black1/4 brown(g) brown * brown ¡ 3/4 brown1/4 golden(h) black * black ¡ 9/16 black4/16 golden3/16 brown
A wild-type fruit fly (heterozygous for gray body color andnormal wings) is mated with a black fly with vestigial wings.The offspring have the following phenotypic distribution: wildtype, 778; black vestigial, 785; black normal, 158; gray vestigial,162. What is the recombination frequency between these genesfor body color and wing size? Is this consistent with the resultsof the experiment in Figure 15.9?
Assume that plant height is determined by a pair of alleles at each of two loci (A and a, B and b) that are additive in their effects. Further assume that each allele represented by an uppercase letter contributes 6 feet to height and that each allele represented by a lowercase letter contributes 2 foot to height. If a plant with genotype Aabb is crossed to a plant with genotype aaBb, what heights are expected in the progeny? 1/216ft : 1/2 12ft 1/4 16ft : 1/2 12ft : 1/4 8ft 1/4 20ft : 1/2 16ft : 1/4 12ft 1/4 24ft : 1/2 20ft : 1/4 16ft 1/2 20ft : 1/2 16ft
In rabbits, the color of body fat is controlled by a single genewith two alleles, designated Y and y. The outcome of this traitis affected by the diet of the rabbit. When raised on a standardvegetarian diet, the dominant Y allele confers white body fat,and the y allele confers yellow body fat. However, when raisedon a xanthophyll-free diet, a homozygote yy rabbit has whitebody fat. If a heterozygous rabbit is crossed to a rabbit withyellow body fat, what are the proportions of offspring withwhite and yellow body fat when raised on a standard vegetariandiet? How do the proportions change if the offspring are raisedon a xanthophyll-free diet?
When many families were tested for the ability to tastethe chemical phenylthiocarbamide, the matings weregrouped into three types and the progeny were totaled,with the results shown below:ChildrenNumber NonParents of families Tasters tastersTaster × taster 425 929 130Taster × nontaster 289 483 278Nontaster × nontaster 86 5 218With the assumption that PTC tasting is dominant (P)and nontasting is recessive (p), how can the progenyratios in each of the three types of mating be accountedfor?
Total fingerprint ridge count exemplifies a polygenic inheritance pattern. Penrose (1969) and others have suggested that a minimum of seven gene loci contribute to TRC, but a four-locus model is hypothesized in the problems that follow. Thus, AABBCCDD represents the genotype for maximum ridge count and aabbccdd symbolizes the genotype for the minimum ridge count. Assume that each active allele adds 15 ridges to the TRC of the male and 12 to the TRC of the female and that having the genotype aabbccdd produces a baseline TRC of 70 for males and 50 for females. Predict the TRC for each of the following individuals: Genotype Male Female AABBCCDD AabbccDd AaBBCcDD aaBbCCDd A. Write the genotypes of parents who are heterozygous for all four genes. B. Write the genotype of their child who has the maximum number of active alleles possible. C. What are the TRCs for the parents? D. What is the TRC of the child from B (assume male)?…
Total fingerprint ridge count exemplifies a polygenic inheritance pattern. Penrose (1969) and others have suggested that a minimum of seven gene loci contribute to TRC, but a four-locus model is hypothesized in the problems that follow. Thus, AABBCCDD represents the genotype for maximum ridge count and aabbccdd symbolizes the genotype for the minimum ridge count. Assume that each active allele adds 15 ridges to the TRC of the male and 12 to the TRC of the female and that having the genotype aabbccdd produces a baseline TRC of 70 for males and 50 for females. Predict the TRC for each of the following individuals: Genotype Male Female AABBCCDD AabbccDd AaBBCcDD aaBbCCDd