1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
GREYUIT [131]
3 years ago
9

In Labrador retriever dogs, coat color is determined by the interaction of two genes (pigment and deposition of pigment). This i

s called epistasis. Coat color can be black (B) or brown (b) and deposition of pigment into the hair shaft is deposited (E) or not deposited (e). If a retriever has the genotype where they have _ _ ee, then they will have a yellow coat regardless of what color they inherit (e.g., Bbee or bbee gives a Yellow lab).
1. Calculate the phenotypic ratios of a cross between a male and a female Labrador retrievers that are both heterozygous for coat color and heterozygous for deposition of pigment.

What is the genotype of both the male and female parents?

What are the possible gametes of both the male and female parents?

What is the phenotypic ratio of the offspring?
Biology
1 answer:
Shtirlitz [24]3 years ago
6 0

Answer 1,2,3,4:

As both are heterozygous therefore Male genotype will be (BbEe) and the genotype of female will be (BbEe). While both will have the phenotype black.

Parent Genotype

Male X Female

BbEe X BbEe

Possible gametes from Parents

Male X Female

BbEe X BbEe

(BE) (Be) (bE) (be) X (BE) (Be) (bE) (be)

...

F1  generation will have following genetypic ratio

Black Labrador = 9  = B_E_

Brown Labrador = 3  = bbE_

Yellow Labrador = 3  = B_ee

Yellow Labrador = 1  = bbee

Furthermore, the phenotypic ration will be

Black Labrador = 9

Brown Labrador = 3

Yellow Labrador = 4

You might be interested in
Justin was involved in an automobile accident and sustained a serious injury to his head. when asked about the accident, justin
Arlecino [84]
The answer to this question is the "Retrograde Amnesia". When Justine was involved in an automobile accident and sustained a serious and critical injury to his sensitive part of the body which is the forehead. When he is being asked about the accident, Justin could not remember what happened on how the accident occurred. So Justin seems to be suffering from  RETROGRADE AMNESIA.
4 0
3 years ago
What is the difference between gene and an allele
Dmitry [639]

Answer:

A gene is a stretch of DNA or RNA that determines a certain trait. Genes mutate and can take two or more alternative forms; an allele is one of these forms of a gene. For example, the gene for eye color has several variations (alleles) such as an allele for blue eye color or an allele for brown eyes.

Explanation:

3 0
3 years ago
PLEASE HELP!! BIOLOGY
GaryK [48]
C) the changes reflect...
8 0
3 years ago
Read 2 more answers
How many chemicals are in tobacco smoke?
tangare [24]

Answer:

More than 7000 chemicals are present in tobacco smoke.

Explanation:

In these 7000 chemicals, 250 are harmful to the human body such as carbonmonoxide, ammonia and hydrogen cyanide etc. There are some chemicals that are found in tobacco smoke which causes cancer disease in human. About 69 chemicals out of 250 are present in tobacco smoke that causes cancer disease. So its consumption is dangerous for health.

3 0
3 years ago
Read 2 more answers
In addition to precipitation and temperature, biomes are classified primarily by the characteristics
vodka [1.7K]

Answer:

Plants and animals

Explanation:

6 0
2 years ago
Other questions:
  • In human development, which of these must be present before tissue if formed?
    12·1 answer
  • Which of the following correctly describes Cytokinesis? A. The Cytoplasm splits, forming two daughter cells B. Mitotic spindle a
    12·1 answer
  • What is the Importance of nature pattern​
    7·1 answer
  • Which is the following is correct for bonding between the purines and pyrimidines?
    6·1 answer
  • Muscular arteries
    7·1 answer
  • PLS HELP ASAPPPPP :/
    15·1 answer
  • What are the answers here? Select all that apply.
    11·1 answer
  • Which mechanism of evolution is caused by a population moving to a secluded mountain valley that is cut off from any other popul
    6·1 answer
  • 10. What causes root pressure, and what is the function of root pressure for the plant?
    13·1 answer
  • Carbohydrates and fats both
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!