Homework Answers
A) Phenotype of dog 1(Bb Ee) is black,as it does not have ee,so its phenotype is determined by B locus.
B) Phenotype of dog 2(Bb ee) is golden,as it contains ee(e is epistatic over B)
C) After crossing,out of 16 individuals,8 contain ee genotype,so all of them are golden,so golden phenotypes are=(8*100)/16=50%
6 individuals contain either BB or Bb(and do not contain ee).So they are of black phenotypes=(6*100)/16=37.5%
2 individuals contain bb(and do not contain ee).So they are of choclate or brown phenotypes=(2*100)/16=12.5%
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2. A recessive allele (e) is epistatic over the B gene locus, producing a golden cot...
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...
Laborador retrievers come in 3 colors-black, brown or golden. Gene B determines what color of pigment...
Laborador retrievers come in 3 colors-black, brown or golden. Gene B determines what color of pigment is produced, with black being dominant over brown. Gene C determines pigment deposition, with the prescense of the dominant allele resulting in pigment deposition and homozygous recessive resulting in a golden appearance (no deposition). a) which gene is epistatic to which? b) If a Bbcc individual is crossed with a bbCc, what proportion of the progeny will be black, brown of golden? c) you...
the answer I gave was wrong 1 1 - - 1 Hair color is determined in...
the answer I gave was wrong
1 1 - - 1 Hair color is determined in Labrador retrievers by alleles at the Band E loci. A dominant allele B encodes black pigment, whereas a recessive allele b encodes brown pigment. Alleles at a second locus affect the deposition of the pigment in the shaft of the hair; dominant allele E allows dark pigment (black or brown) to be deposited, whereas recessive allele e prevents the deposition of dark pigment, causing...
7) In humans, brown eyes (B) are a simple dominant trait over blue eyes (b). What...
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White is due to a dominant gene W, while black is due to its recessive allele....
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does someone know the answer for these questions? Thank you so much 3. In certain breeds...
does someone know the answer for these questions? Thank you so
much
3. In certain breeds of dogs, black color is dominant and red color is recessive. Solid color is dominant and spotting is recessive. A homozygous black male is crossed with a red-and-white spotted female. What is the probability of them producing a solid black puppy? 4. In horses, black color (B) dominates chestnut color (b). The trotting gait (T) dominates the pacing gait (t). A cross is made...
The Labrador retriever's coat colours are black, yellow, and chocolate. s produced by the presence of...
The Labrador retriever's coat colours are black, yellow, and chocolate. s produced by the presence of a recessive epistatic gene, which has the effect of masking the black and chocolate colour genes. Black (B) is dominant to chocolate (b) Therefore, the possible genotypes and corresponding phenotypes are: Phenotype Black Brown Yellow Possible Genotypes G bb 41. Predict the percentage of offspring that would be black in colour for each of the following crosses. Record your answer as a whole number....
the answer I gave was wrong
1 1 - - 1 Hair color is determined in Labrador retrievers by alleles at the Band E loci. A dominant allele B encodes black pigment, whereas a recessive allele b encodes brown pigment. Alleles at a second locus affect the deposition of the pigment in the shaft of the hair; dominant allele E allows dark pigment (black or brown) to be deposited, whereas recessive allele e prevents the deposition of dark pigment, causing...
7) In humans, brown eyes (B) are a simple dominant trait over blue eyes (b). What is the genotype of a brown-eyed woman who has a blue-eyed child? A)bb -B)Bb С)ВВ D)BBB E) BbBb 8) The ability to roll the edges of the tongue upward in a U-shape is inherited as a dominant allele at a single gene locus, Which of the following genotypes would produce an individual that can roll their tongue? A)TT only B)Tt only C) only D)TT...
does someone know the answer for these questions? Thank you so
much
3. In certain breeds of dogs, black color is dominant and red color is recessive. Solid color is dominant and spotting is recessive. A homozygous black male is crossed with a red-and-white spotted female. What is the probability of them producing a solid black puppy? 4. In horses, black color (B) dominates chestnut color (b). The trotting gait (T) dominates the pacing gait (t). A cross is made...
The Labrador retriever's coat colours are black, yellow, and chocolate. s produced by the presence of a recessive epistatic gene, which has the effect of masking the black and chocolate colour genes. Black (B) is dominant to chocolate (b) Therefore, the possible genotypes and corresponding phenotypes are: Phenotype Black Brown Yellow Possible Genotypes G bb 41. Predict the percentage of offspring that would be black in colour for each of the following crosses. Record your answer as a whole number....
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