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
sp2606 [1]
3 years ago
9

1. A brown mink crossed with a silver-blue mink produced all brown offspring. When these F1 were crossed among themselves, they

produced forty-seven brown animals and fifteen silver-blue animals. What are the genotypes of the parentals and the F1s
Biology
1 answer:
emmasim [6.3K]3 years ago
3 0

Answer:

The correct answer is -

Parental - BB and bb

F1

Genotypes: 100% Bb  

F2

Genotypes: ¼ BB, ½ Bb, ¼ bb

Explanation:

It is given that a cross between a brown and a silver-blue mink produces all brown offspring and it is only possible if brown is dominant over silver blue in true breed cross, assume brown trait is represented by B and silver-blue is b then parents will be

BB and bb

   B    B

b  Bb   Bb

b  Bb   Bb

Cross between F1 individuals: Bb cross Bb

gametes : B, b and B, b

   B     b

B  BB   Bb

b   Bb    bb

the genotype of F2 : 1:2:1 = ¼ BB, ½ Bb, ¼ bb

You might be interested in
What type of variation is necessary for natural selection to occur
Rzqust [24]
Genetic Variation
Natural selection results in organisms that are better suited to their environment are able to pass on genes to create strong offspring
4 0
3 years ago
Read 2 more answers
Plz answer this question I am a little confused
Step2247 [10]
I think it would be D
5 0
3 years ago
Read 2 more answers
Why does blood pressure in both arms differ
Alika [10]

Explanation:

Generally, a small difference in blood pressure readings between arms isn't a health concern. However, a difference of more than 10 millimeters of mercury (mm Hg) for either your top number (systolic pressure) or bottom number (diastolic) may be a sign of blocked arteries in the arms, diabetes or other health problem

.A significant difference in the pressure recorded in the right and left arms can signal circulatory problems that may lead to stroke, peripheral artery disease, or other cardiovascular problems.

7 0
3 years ago
Which region of the mitochondria has the highest concentration of h+?
storchak [24]
The region of the mitochondria with the highest level of hydrogen ion is the INTERMEMBRANE SPACE.
The mitochondria is made up of many parts, such as the outer membrane, the inner membrane, the intermembrane space, the cristae and the matrix. The high concentration of hydrogen ion in the intermembrane space is used to power ATP synthase.
4 0
3 years ago
Help me please it’s science <br> It’s in the picture
Shalnov [3]

Answer:

do you think you can put the picture if you can't it ok and what schooldo you go to is it kipp ortheats college prep.

Explanation:

4 0
3 years ago
Other questions:
  • During what stage of succession would you expect to find only moss, lichen, and other small plants? early/pioneer stage , middle
    15·1 answer
  • About one-quarter of all wastes in landfills are _____.
    12·2 answers
  • Discuss two ways that all cells are alike?
    12·1 answer
  • This level contains closely related organisms it is also used as the first word in an organisms specific name and is uppercase
    15·1 answer
  • Cumulus and cumulonimbus clouds are most likely to be formed by a _______ front
    13·2 answers
  • What is a source of large molecules that are needed for life? (4 letter word ONLY)
    15·1 answer
  • Four places a body fossil might be created.
    5·1 answer
  • Energy produced by cellular processes is stored as
    10·1 answer
  • Why is it important that the location of fossils found in the ground is recorded?
    7·2 answers
  • 1) Define biodiversity in your own words:<br><br> 2) Why is biodiversity important?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!