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
amid [387]
3 years ago
13

: In some breeds of dogs, black (B) is the result of the production of black eumelanin ( a fur pigment protein) and it is domina

nt over brown (b) or the production of brown eumelanin. If we cross a true breeding male black dog with a female brown dog, what are the phenotypes and genotypes of the F1 and F2? In order to solve the problem, follow the steps below while answering the questions.
English
1 answer:
wlad13 [49]3 years ago
5 0

Answer:

Gentoype of F1: all Bb

Phenotype of F1: black

Genotypes and phenotypes of F2:

1/4 BB - black fur

1/2 Bb - black fur

1/4 bb - brown fur

Explanation:

Black fur (B) is dominant over brown fur (b).

A true breeding black dog will have the genotype BB.

A true breeding brown dog will have the genotype bb.

If both of them are crossed:

BB   x   bb

F1 progeny: All Bb with Black fur.

At F2:

Bb   x   Bb

Progeny:

1 BB - black fur

2 Bb - black fur

1 bb - brown fur

<em>Hence:</em>

<em>Gentoype of F1 = all Bb</em>

<em>Phenotype of F1 = black</em>

<em>Genotypes and phenotypes of F2:</em>

<em>1 BB - black fur</em>

<em>2 Bb - black fur</em>

<em>1 bb - brown fur</em>

You might be interested in
What problem does the speaker encounter in the first stanza? RL2
solmaris [256]

Answer:

In the first stanza, the speaker has mixed feelings as to which road to take because they seem so similar. He tries to peer down one as far as he can and then considers the other. He finds them both to be about the same but he has to choose.

8 0
2 years ago
(Harriet the Spy) Harriet's classmates were blank while reading her notebook. Harriet acted blank toward ole golly because she r
Debora [2.8K]
The Truth..................
7 0
3 years ago
How do you spell red ?
LenaWriter [7]

Answer:

red

Explanation:

you learn it in kindergarden.

6 0
3 years ago
Read 2 more answers
Please help me with this question!<br><br> Thx in advance
ahrayia [7]

Your answers are D. The tone is the author's attitude toward a character, subject idea or the writing in general. While the mood is the emotions that we feel when we read a story. ||| A The tone of a story creates the mood. ||| B. The author uses the plot and characteristics of the characters to create the mood.

3 0
3 years ago
Read 2 more answers
Which of the following passages best summarizes the point and first reason of The Mother of America?
Airida [17]

Answer:

B

Explanation:

Martha Washington could be considered the "Mother of America" for her kindness towards others in her role as the general's wife. Despite great danger, she journeyed to the military camps to spend time with George Washington and his soldiers. She acted as Washington's secretary, confidant, and representative. She also demonstrated care for the soldiers and their wives by encouraging them, knitting socks, and contributing to fundraising efforts.

3 0
3 years ago
Read 2 more answers
Other questions:
  • This line of poetry from "Totally like whatever, you know?" is most likely stated as a question for what purpose?
    12·2 answers
  • Jane talks on the phone Bob has been talking on the phone for an hour Mary is talking on the phone who is not necessarily on the
    7·2 answers
  • Brief paragraph on declaration of independene
    6·1 answer
  • You will not succeed unless you work harder. what is the conjunction
    10·1 answer
  • Describe what a verb is in your own words
    13·2 answers
  • How has globalism affected american literature?
    14·2 answers
  • How do i paraphrase ‘Caesar introduced new loss’
    13·1 answer
  • Any education that occurs after high school
    6·1 answer
  • Read the paragraph.
    13·1 answer
  • What is the purpose of the verb phrase in the sentence?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!