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
Ludmilka [50]
3 years ago
13

Aniridia, a type of blindness, occurs in humans and is due to a dominant allele, A. Normal vision is due to the allele, a. Migra

ine headaches are due to the dominant allele, M. Normal headaches are due to the allele, m. A man with normal vision and without migraines marries a woman with normal vision and migraines. The man's father had aniridia. The women's father had normal headaches but never a migraine.
Required:
1. What was the genetics of the man's father for aniridia?
2. Did the woman’s mother suffer from migraines?
3. What is the probability of this couple producing a child who is normal for both traits?
4. What is the probability of this couple producing a child who is afflicted by both traits?
5. What is the probability that a child of this couple will have normal vision and migraines?
Biology
1 answer:
ddd [48]3 years ago
8 0

Answer:

1. What was the genetics of the man's father for aniridia? his genotype for the trait is Aa

2. Did the woman’s mother suffer from migraines? Yes, the women  inherited from her the dominant allele for migraines, M

3. What is the probability of this couple producing a child who is normal for both traits? 1/2 aamm

4. What is the probability of this couple producing a child who is afflicted by both traits? 0% of the progeny will be affected by both traits at the same time

5. What is the probability that a child of this couple will have normal vision and migraines? 1/2 aaMm

Explanation:

<u>Available data:</u>

  • Aniridia is due to a dominant allele, A.
  • Normal vision is due to the allele, a.
  • Migraine headaches are due to the dominant allele, M.
  • Normal headaches are due to the allele, m.

A man with normal vision and without migraines marries a woman with normal vision and migraines.

  • The genotype of the Man with normal vision and without migraines is  aamm
  • The genotype of the woman with normal vision and migraines is aaM-

The man's father had aniridia. This means that his genotype for the trait is Aa. We know that his son is homozygous for the recessive trait and that he must have inherited one recessive allele from the mother and the other recessive allele from his father. So, the man´s father must be heterozygous for the trait. If he was homozygous, the son would be heterozygous and would express aniridia.

The women's father had normal headaches but never a migraine. This means that his genotype is mm, recessive homozygous for the trait, which tells us that the women´s mother inherited her the dominant allele for migraines, and her father inherited her the recessive allele for the trait.

Cross:

Parental) aamm    x    aaMm

Gametes) am  am  am  am

                aM  aM  am  am

Punnet square)   aM       aM       am       am

                  am   aaMm  aaMm  aamm  aamm

                  am   aaMm  aaMm  aamm  aamm

                  am   aaMm  aaMm  aamm  aamm

                  am   aaMm  aaMm  aamm  aamm

F1) 8/16=1/2 of the progeny will have normal vision and migraines, aaMm

     8/16=1/2 of the progeny will have normal vision and will not have migraines, aamm

1. What was the genetics of the man's father for aniridia? his genotype for the trait is Aa

2. Did the woman’s mother suffer from migraines? Yes, the women  inherited from her the dominant allele for migraines, M

3. What is the probability of this couple producing a child who is normal for both traits? 1/2 aamm

4. What is the probability of this couple producing a child who is afflicted by both traits? 0% of the progeny will be affected by both traits at the same time

5. What is the probability that a child of this couple will have normal vision and migraines? 1/2 aaMm

You might be interested in
CELL. MITOSIS or MEIOSIS?..... PHASE....... EXPLANATION
romanna [79]
A not sure if it’s right
3 0
3 years ago
In the context of an explanation of how human growth occurs, a student is explaining to a colleague the necessity and roles of d
rewona [7]
<h2>Messenger RNA </h2>

Explanation:

Messenger RNA results from the breakage and recombining of DNA strands that is known as transcription

  • Transcription always starts at a specific site called promoter
  • Promoter are specific sites on DNA where RNA Polymerase binds and initiates transcription
  • Synthesis of RNA occurs in 5'-3' direction and continuous
  • Only a strand of DNA act as template, template is also known as antisense strand or non coding strand  
  • The complementary strand is the sense strand or the coding strand
  • Only a small segment of DNA is transcribed at a time generally called gene
7 0
2 years ago
Is the pH of Claire's small intestine below, within, or above the optimal range of each enzymes?
Margaret [11]

Answer: Protease is within

Lipase is within

Carbohydrase is within

Explanation:

Because a pH of 9.1 is within the green area for every graph, Claire’s pH is within the optimal range for every enzyme.

6 0
2 years ago
What caused the earth to separate into layers
Mashutka [201]

Answer:

When the inside of the Earth was liquid, gravity caused the heavier elements nickel and iron to sink to the center. Lighter elements floated to the surface. Over time this process caused the Earth to separate into layers.

Explanation:

6 0
2 years ago
An example of mitosis at work is a plant root ____.
aleksklad [387]

Answer:

Skin cells would die and not be replaced.

Explanation:What would happen to skin cells if mitosis did not take place?

Skin cells would regrow from other types of cells.

Skin cells would be replaced at a slower rate.

Skin cells would be replaced with new cells.

Skin cells would die and not be replaced.

3 0
2 years ago
Read 2 more answers
Other questions:
  • Why is dna replication like an assembly line?
    13·2 answers
  • Look at the graph below. Which statement is true based on the graph of an egg draw. A the speed of the egg is constant B the egg
    5·1 answer
  • Describe how the structural makeup of a muscle contributes to the muscle's ability to do its job.
    12·1 answer
  • Definition of cell wall
    13·1 answer
  • A flowering yucca plant and a yucca moth have a relationship. The adult female moth lays eggs in the plant, and the young moths
    5·2 answers
  • The majority of nitrogen fixation happens when _____ convert atmospheric nitrogen(N2) into ammonia(NH3).
    9·2 answers
  • Use the drop-down menus to complete the statements. Anthers release pollen, which lands on the of another flower of the same spe
    10·2 answers
  • Describe the difference in Iguana population size before and after El Niño?
    8·1 answer
  • What does the nucleus consist of?
    10·1 answer
  • Learning Task 1: WORD UP
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!