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
mr Goodwill [35]
2 years ago
12

Colorblindness is an X-linked recessive trait. Samantha is colorblind and her husband, Rick, has normal vision. What is the prob

ability that they will have a colorblind son?
Biology
1 answer:
pav-90 [236]2 years ago
4 0

Considering the whole progeny, there are 50% of probabilities of having a colorblind son. Considering only boys, there are 100% chances of having a colorblind son.

<h3>What is color blindness?</h3>

Color-blindness is a disfunction characterized by an alteration in color perception.

This alteration might affect perception from only partial confusion and difficulties in distinguishing some tones of green and red, up to no chromatic distinction.

Color-blindness is an X-linked condition.

  • Women that are h0m0zyg0us recessive will be completely color-blinded (X⁺X⁺),

  • Heter0zyg0us woman has partial color-blindness (X⁺X⁻).

  • Men are or are not color-blinded (X⁺Y or X⁻Y).

<h3>Available data</h3>
  • color-blindness is an X-linked recessive condition
  • X⁻ represents the X chromosome carrying the color blindness allele.
  • The allele for color blindness is recessive to the normal form of the gene, X ⁺.
  • Samantha is colorblind.
  • Rick has normal vision.

⇒ If Samantha is color-blind, then her genotype is X⁻X⁻.

⇒ If Rick has normal vision, then his genotype is X⁺Y.

Cross: Samantha and Rick

Parentals)    X⁻X⁻     x      X⁺Y

Gametes)  X⁻    X⁻         X⁺    Y

Punnett square)           X⁻               X⁻

                         X⁺       X⁺X⁻           X⁺X⁻

                          Y        X⁻Y             X⁻Y

F1) 2/4 = 1/2 = 50% of the progeny is expected to be heter0zyg0us expressing partial-color blindness, X⁺X⁻.

     2/4 = 1/2 = 50% of the progeny is expected to be completely color-blinded, X⁺Y.

     100% of the girls are expected to be partial-color blinded, X⁺X⁻.

     100% of the boys are expected to be color blinded, X⁻Y.

Answer: You can express your answer in two ways,

  • 4/4 = 100% of probabilities of having a colorblind son (you are only considering boys in your answer).

             

  • 1/2 = 50% of chances of having a colorblind son among the whole progeny (this answer includes girls as well).

You ca learn more about color-blindness at

brainly.com/question/25621649

brainly.com/question/4299904

You might be interested in
What is the name of: height above sea level
sineoko [7]

Answer:

The Word is altitude

Explanation:

This is another word for height above sea level also Brainliest would be appreciated

7 0
3 years ago
WILL GIVE BRAINLIEST ANSWER, PLEASE HELP
loris [4]
'colored feathers that camouflage birds from predators are found in the majority of the current bird population' would be correct since that would only focus on one species instead of many, natural selection includes  all species, not just one.
7 0
3 years ago
21. Which of the following is not a feature of echinoderms? tube feet body segments radial symmetry endoskeleton
Jlenok [28]

Answer:

Explanation:

body segements

4 0
3 years ago
Read 2 more answers
Which fl industry is the cape Canaveral? fishing/ mining/ aerospace/agriculture
vodka [1.7K]

Answer:

Aerospace

Explanation:

7 0
2 years ago
100 points! I will make you a brainlest Help me right now!!! With all questions (5,6,7)
OLga [1]

Answer:

show slide 4

Explanation:

3 0
2 years ago
Other questions:
  • Using the gas pedal analogy explain the impact on the cell cycle of a proto
    5·1 answer
  • Pepsi Vinegar Orange Juice What property do all three of these common household substances have in common? A) They are all acidi
    10·1 answer
  • How do you know when a chemical reaction has taken place?
    5·1 answer
  • Revisions to accepted scientific explanations can be based on what?
    8·2 answers
  • How the does the shape of an enzyme affect the reaction?
    10·1 answer
  • 8. 2% of 168 ~ what is the answer​
    14·1 answer
  • Bacteria in your lab are grown under two conditions, one with exposure to glucose and the other with lactose. what best describe
    11·1 answer
  • Anything that elicits an immune response is called a
    15·1 answer
  • Explain why plants grown in green light will not grow as fast as plants grown in white light.
    10·1 answer
  • Which of the following has the longest wave length
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!