Question

In Labradors, B codes for black fur and b codes for brown (chocolate) fur. In order to see the color, the dog must also have at least one D allele for pigment depositing. If the dog is dd, they are yellow. What would be the genotype of a black Labrador that, when crossed with a chocolate Labrador, can only give rise to black and chocolate Labrador puppies?

Name: in labradors b codes for black fur and b codes for brown chocolate fur in order to see the color the dog must also have at least one d allele for pigment depositing if the dog is dd they are 84174
Uploaded: 2023-04-04T17:45:52-08:00
Duration: 1 min 43 s
Channel: Madhur L
Description: in labradors b codes for black fur and b codes for brown chocolate fur in order to see the color the dog must also have at least one d allele for pigment depositing if the dog is dd they are 84174

          In Labradors, B codes for black fur and b codes for brown (chocolate) fur. In order to see the color, the dog must also have at least one D allele for pigment depositing. If the dog is dd, they are yellow. What would be the genotype of a black Labrador that, when crossed with a chocolate Labrador, can only give rise to black and chocolate Labrador puppies?

Added by Luisa A.

Biology for AP Courses

Julianne Zedalis, John Eggebrecht

Instant Answer

Solved by Expert Madhur L

04/04/2023

Step 1

Step 1: The black Labrador must have the genotype BbDd, as it is black and can produce both black and chocolate offspring. Show more…

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In Labradors, B codes for black fur and b codes for brown (chocolate) fur. In order to see the color, the dog must also have at least one D allele for pigment depositing. If the dog is dd, they are yellow. What would be the genotype of a black Labrador that, when crossed with a chocolate Labrador, can only give rise to black and chocolate Labrador puppies?