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
Janice needs to write a couplet about the summer breeze for her literature class. How many lines should her poem be?
ruslelena [56]

if she has very big hand written she should leave 10 pages but if small 8 pages at least

5 0
2 years ago
Read 2 more answers
can someone help me with this as soon as possible please. The directions are we need to find the verb and helping verb
Sloan [31]
1. Verb : found .....helping :can be
2.Verb :authenticated ......helping:idk
4Verb.:scampered helping : across
5. devising, constantly
6.purchased, could
7. served, after-before
8. seek, must
9.do, after
10. have, been
11. seeing
12. soaping , before
4 0
2 years ago
Liza has written a summary of the trickster Anansi. Fill in the correct words in the blanks to complete the summary.
Marysya12 [62]
The answer is photos
5 0
2 years ago
Read 2 more answers
Find a “Golden Line” in Henry David Thoreau’s “Walden”. A golden line is a line that stands out to you as important. It could be
Gala2k [10]
One of the "golden lines" from "Walden" could be: "<span>Let us settle ourselves, and work and wedge our feet downward through the mud and slush of opinion, and prejudice, and tradition, and delusion, and appearance, that alluvion which covers the globe, through Paris and London, through New York and Boston and Concord, through church and state, through poetry, philosophy and religion, till we come to a hard bottom and rocks in place, which we can call </span><span>reality."

This line illustrates the romantic idea of nature as a source of spiritual nourishment. More precisely, nature is here represented as a complete opposite of the civilized and urbanized world, with all of its cultural phenomena. According to Thoreau, we shouldn't be wary of the mud in nature. We should be wary of the real, sticky, burdening mud of civilization, which is so difficult to get rid of. It is the mud of prejudice, opinion, tradition, delusion - everything that the civilized people cling to so ardently.</span>
4 0
3 years ago
Part 1: Write a thesis statement that addresses the following prompt.
deff fn [24]
Try a job that compare to what you like to do like I like to write so I would choose a job were I can write books etc. I would choose it because it’s something I like to do and it would give me expired to see if this jobs is something I want to do for a living.

6 0
2 years ago
Read 2 more answers
Other questions:
  • Perhaps you wanted pizza for dinner, but were out voted by the rest of the family who wanted chili. This is similar to what happ
    6·2 answers
  • What does full of grace mean???????????
    14·1 answer
  • If i were to create a story like a novel or so, what should i do to create the story? like what step and so and so?
    8·1 answer
  • Do you ever forget to do your homework?
    13·1 answer
  • Which is the simple subect in each sentence ?
    8·1 answer
  • Shakespeare's comedies tend to end with a
    7·2 answers
  • New England is a (blank) , rocky place
    7·2 answers
  • What can a person learn by building a relationship with an animal? PLS HELP ASPAAAAAAAAAP
    5·1 answer
  • You are Aditi/Aditya Verma of 27, Begham Pul, Meerut. An iron factory is proposed to be set up in the new industrial area just a
    10·1 answer
  • Please help
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!