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
Flura [38]
3 years ago
10

Red-green color blindness is due to an X-linked recessive allele in humans. A widowâs peak (a hairline that comes to a peak in t

he middle of the forehead) is due to an autosomal dominant allele. Consider the following family history:
A man with a widowâs peak and normal color vision marries a color-blind woman with a straight hairline.
The manâs father had a straight hairline, as did both of the womanâs parents.

Use the family history to make predictions about the coupleâs children.

What is the chance that any daughter the couple has will be color blind with a straight hairline?

A. 0B. 1/2C. 3/4D. 1E. 1/4
Biology
1 answer:
viktelen [127]3 years ago
4 0

Answer:

A. 0

Explanation:

Both red-green color blindness and and shape of hairline are independently assorting genes.

Red-green color blindness is X-linked recessive while hairline shape is autosomal dominant.

The man who has widow's peak had a father with straight hairline. This means that the man is heterozygous for the trait.

Assuming hairline shape is represented by S. A heterozygous widow's peak man will have a genotype of Ss. A straight hairline woman will have a genotype of ss.

Assuming the allele for colour blindness is c. A normal vision man will have the genotype X^CY while a color blind woman will have the genotype X^cX^c.

X^CY Ss   x    X^cX^c ss

<em>The man does not have the color blind allele and a daughter will need two color blind alleles (one from the father and the other from the mother) in order to show the trait.</em>

<em>This means that the probability of the couple producing a color blind daughter is 0. Hence, the chance that any daughter the couple has will be color blind with a straight hairline is also 0.</em>

The correct option is A.

You might be interested in
What type of wave moves the audio and visual signals?
Katyanochek1 [597]

Answer:

1. ( electromagnetic wave)

5 0
3 years ago
How many neutrons does element X have if its atomic number is 36 and its mass number is 91?
Viefleur [7K]
55 is the answer
!!!!!!!!!!!!!!!!!!!!!!!!!!
5 0
3 years ago
An athlete who uses blood from another person for blood doping runs the risk of contracting a blood-borne disease because
Veronika [31]
Pathogens can exist in blood and then can be passed the transfusions
6 0
3 years ago
Read 2 more answers
According to rounding rules for addition, the sum of 27.1, 34.538, and 37.68 is ____.
djverab [1.8K]

that's all wrong the real answer is b.99.3

8 0
3 years ago
The shape of a protein is determined by the order of their nucleotides true or false
Alexxandr [17]

Answer: false

Explanation:

3 0
3 years ago
Other questions:
  • What’s the answers of escape dna worksheet?
    9·1 answer
  • Which enzyme functions to prevent supercoiling of the DNA molecule during replication?
    7·2 answers
  • What situation might develop in a population having some plants whose flowers open at midday and other plants whose flowers open
    8·1 answer
  • CPT codes for diagnostic radiology for the hemic and lymphatic systems are covered under which range?a. 75600-75989b. 77001-7702
    7·1 answer
  • Help please 30 points will give brainliest
    7·2 answers
  • The autonomic nervous system controls _____________.
    11·1 answer
  • HELPPPP
    11·1 answer
  • Describe the change that occur in the skin to get rid of excess heat.
    12·1 answer
  • Which of the following is true of clouds at medium altitude
    6·1 answer
  • What are viable explanations for the consistent observation of a few black mice on the island?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!