Using the example of coat color in horses (or dogs), explain the blending hypothesis of inheritance.
- Using the example of coat color in horses (or dogs), explain the blending hypothesis of inheritance.
Homework Answers
As per blending hypothesis of inheritance, the traits present in the progeny of two parents are intermediate of the parents. This can be well explained by the example of coat colour in horses.
When 2 palomino horses are crossed, we not only get palominos as progeny, but chestnut and cremello horses are also present.
Palomino (Cr/n) × Palomino (Cr/n)
Cr codes for cream colour.
| Gametes | Cr | n |
| Cr | Cr/Cr (cremello) | Cr/n (palomino) |
| n | Cr/n (palomino) | n/n (chestnut) |
Phenotypic ratio - 1 (cremello) : 2 (palomino) : 1 (chestnut)
Please rate.
Add Answer to:
Using the example of coat color in horses (or dogs), explain
the blending hypothesis of inheritance.
In horses, the basic color of the coat is governed by the E locus. EE and...
In horses, the basic color of the coat is governed by the E locus. EE and Ee horses can make black pigment, while ee horses are a reddish chestnut. A different locus, the R locus, can cause roan, a scattering of white hairs throughout the basic coat color. However, the roan allele has a serious drawback: RR embryos always die during fetal development. Rr embryos survive and are roan, while rr horses survive and are not roan. The E locus...
5. Pretend that the trait for shiny coat color in dogs is controlled by a simple...
5. Pretend that the trait for shiny coat color in dogs is controlled by a simple dominant and recessive relationship at one locus. Shiny coat color (H) is dominant to dull coat color (h). In an animal shelter, the shelter workers take a tally of dogs with shiny coats and those with dull coats. Of the 153 dogs, 88 have shiny coats. Assuming the dogs are in Hardy-Weinberg equilibrium for this trait, find the frequency of the dominant allele H...
Let "E" designate a dominant allele in horses producing a black coat color and "e" represent...
Let "E" designate a dominant allele in horses producing a black coat color and "e" represent the recessive, such that "ee" is chestnut. Also, let "T" represent the dominant allele for Tobiano spotting and "t" represent the recessive allele for solid coat color, such that "tt" is solid color. From the inter se mating (two hybrids/F1s mating): A) What is the probability of a black horse? B) What is the probability of a Tobiano horse given it is black? C)...
Let "E" designate a dominant allele in horses producing a black coat color and "e" represent...
Let "E" designate a dominant allele in horses producing a black coat color and "e" represent the recessive, such that "ee" is chestnut. Also, let "T" represent the dominant allele for Tobiano spotting and "t" represent the recessive allele for solid coat color, such that "tt" is solid color. From the inter se mating (two hybrids/F1s mating): A) What is the probability of a black horse? B) What is the probability of a Tobiano horse given it is black? C)...
Let "E" designate a dominant allele in horses producing a black coat color and "e" represent...
Let "E" designate a dominant allele in horses producing a black coat color and "e" represent the recessive, such that "ee" is chestnut. Also, let "T" represent the dominant allele for Tobiano spotting and "t" represent the recessive allele for solid coat color, such that "tt" is solid color. From the inter se mating (two hybrids/F1s mating): A) What is the probability of a black horse? B) What is the probability of a Tobiano horse given it is black? C)...
A single gene in horses determines coat (hide) color. Palomino (‘dove’) horses are heterozygous (Aa), while...
A single gene in horses determines coat (hide) color. Palomino (‘dove’) horses are heterozygous (Aa), while homozygous recessive (aa) are cremello, and homozygous dominant (AA) are chestnut. A horse rancher buys 80 palomino horses and 20 cremello horses and lets them breed free. (a) What are frequencies of alleles and genotypes in THIS (parent) generation? Are all genotypes represented? Show your calculations
1) (a) A single gene in horses determines coat (hide) color. Palomino (‘dove’) horses are heterozygous...
1) (a) A single gene in horses determines coat (hide) color. Palomino (‘dove’) horses are heterozygous (Aa), while homozygous recessive (aa) are cremello, and homozygous dominant (AA) are chestnut. A horse rancher buys 80 palomino horses and 20 cremello horses and lets them breed free. (a) (10 pts) What are frequencies of alleles and genotypes in THIS (parent) generation? Are all genotypes represented? Show your calculations. Is the population at this moment (i.e. in THIS generation) in Hardy-Weinberg balance or...
2. In Labrador dogs, there are 2 loci that determine coat color. The first locus, B...
2. In Labrador dogs, there are 2 loci that determine coat color. The first locus, B is dominant to b. At least one B allele will produce black coat color, while the bb genotype produces a chocolate coat color. This first locus also determines nose color in Labradors: B_ black noses, and bb brown noses. The second locus has a genotype, ee, that is epistatic in nature. Any Labrador with an ee genotype will be yellow. A genotype containing at...
In dogs, short hair is dominant over long hair, and dark coat color is dominant over...
In dogs, short hair is dominant over long hair, and dark coat
color is dominant over albino fur. Assuming that these effects are
caused by two independently sorting genes, what will be the result
of the following cross? Create a Punnet square and show your
work.
2. In tomatoes, the gene for round fruit is dominant to the gene for long fruit. A homozygous round fruit plant was crossed with a long fruit plant. Show the genotype of the two...
/ fn Labrador retrie brown coat color however, the E gene controls expression of the B...
/ fn Labrador retrie brown coat color however, the E gene controls expression of the B gene. The B and E genes interact to yield 3 phenotypes: black (B_E), chocolate (bbE) and yellow ee). What is the phenotypic ratio of the pups that might result vers, the B allele confers black coat color and the b allele from a cross between a yellow female (Bbeo and a chocolate male (hb Be) Coat color in Labrador retrievers is an example of...
5. Pretend that the trait for shiny coat color in dogs is controlled by a simple dominant and recessive relationship at one locus. Shiny coat color (H) is dominant to dull coat color (h). In an animal shelter, the shelter workers take a tally of dogs with shiny coats and those with dull coats. Of the 153 dogs, 88 have shiny coats. Assuming the dogs are in Hardy-Weinberg equilibrium for this trait, find the frequency of the dominant allele H...
In dogs, short hair is dominant over long hair, and dark coat
color is dominant over albino fur. Assuming that these effects are
caused by two independently sorting genes, what will be the result
of the following cross? Create a Punnet square and show your
work.
2. In tomatoes, the gene for round fruit is dominant to the gene for long fruit. A homozygous round fruit plant was crossed with a long fruit plant. Show the genotype of the two...
/ fn Labrador retrie brown coat color however, the E gene controls expression of the B gene. The B and E genes interact to yield 3 phenotypes: black (B_E), chocolate (bbE) and yellow ee). What is the phenotypic ratio of the pups that might result vers, the B allele confers black coat color and the b allele from a cross between a yellow female (Bbeo and a chocolate male (hb Be) Coat color in Labrador retrievers is an example of...
Most questions answered within 3 hours.
-
Assume memory access is 10 units of time and disk access is
10000 units of time....
asked 2 minutes ago -
1. Are all good samples random?
2. Magazines often report surveys giving statistics such as “63%...
asked 24 minutes ago -
Under all the various types of market structures, firms
must eventually earn some economic profits for...
asked 10 minutes ago -
Consider the following fitness regime for a single locus trait
with two co-dominant alleles: w11 =...
asked 15 minutes ago -
A large cable company reports the following.
80% of its customers subscribe to its cable TV...
asked 30 minutes ago -
Please answer the question in brief.
Discuss the role of ERP in organizations. Are ERP tools...
asked 16 minutes ago -
Discuss the pros and cons of collaborative software such
as SameTime. Does it increase productivity? What...
asked 29 minutes ago -
Buying your in-laws a gift because it’s expected is
due to the ____________ motive of gift-giving....
asked 32 minutes ago -
Calculate the expected value, the variance, and the standard
deviation of the given random variable X....
asked 1 hour ago -
A hospital performs 100 surgeries per week. The probability that
complications after surgery occur is 10%....
asked 1 hour ago -
1 point) Given the significance level α=0.01 find the following:
(a) left-tailed z value z= (b)...
asked 1 hour ago -
Assuming you are the head of the software development unit at
Cyber.Soft, explain and justify why...
asked 39 minutes ago