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
Lisa [10]
3 years ago
7

A woman has a rare eyelid abnormality called ptosis, which makes it impossible for her to open her eyes all the way. The conditi

on is caused by a dominant allele. The woman's father had ptosis but her mother was normal. Her father's mother also had normal eyelids.a. What are the genotypes of the woman, her father, and her mother? b. What proportion of the woman's children will have ptosis if she marries a man with normal eyelids?
Biology
1 answer:
aleksley [76]3 years ago
5 0
If you keep in mind that a child gets one gene from the father, andanother from the mother, all should be fine.

a) starting with the father: since he is infected, he then has atleast one P. Knowing his mother wasn't, then her genotype was pp.Since he must have gotten one of her genes, then the father'sgenotype is Pp.
Since her mother had normal eyes, she must have had pp, because ifshe had even one P, she would have ptosis -since the allele isdominant-.
Since the woman is infected, and her mother is pp, then for thesame reasoning as her father, her genotype is Pp.

b) so this is a cross between Pp X pp. Draw your punnets square.There's a 50% chance that her children will have pp genotype thusno ptosis. 50% of her children will have ptosis with genotype Pp.
You might be interested in
Deoxygenated blood fills this receiving room.
kati45 [8]
The Atria Are the Heart's Entryways for Blood
The left atrium and right atrium are the two upper chambers of the heart. The left atrium receives oxygenated blood from the lungs. The right atrium receives deoxygenated blood returning from other parts of the body.

The heart
5 0
2 years ago
What life process removes wastes
densk [106]
"Excretory Process" is the process which removes wastes

Hope this helps!
5 0
2 years ago
Explain in detail the life cycle of the metamorphosis of amphibians.
ANTONII [103]

Answer:

Amphibians begin their lives as eggs, The few eggs that get fertilized, and survive will hatch in 7-9 days. After the eggs of an Amphibian hatch they are called Tadpoles. Tadpoles breathe through gills like fish. ... Metamorphosis is the final process that changes the amphibian from tadpole to adult.

Explanation:

1. I studies this in 7th grade and remeber every single bit of it (monte vista)

2. Google

6 0
3 years ago
I need help please!! | No links please !
hodyreva [135]
Trees are very important natural resources. They are the source of food, shelter and habitat. We get various woods, timber , fodder from the forest. Trees hold the soil firmly. Forests helps in conducting water cycle. If trees are cut down then environmental pollution will increase because trees purify the Air. Land pollution , air pollution , water pollution may increase. Biodiversity can be affected.
4 0
2 years ago
Write a characteristics of a gay person​
stiks02 [169]

Answer:

There aren't specific characteristics that make a person gay or not because everyone is different.

7 0
2 years ago
Other questions:
  • Which human activity negatively affects the stability of the environment? A.Dumping pollutants into the ocean B.Recycling plasti
    11·2 answers
  • When a muscle cell receives a signal from a motor neuron, are all the sarcomeres activated or only some?
    7·1 answer
  • Which of the following statements is true?
    7·2 answers
  • Which is the correct order for the levels of organization from
    13·1 answer
  • HELP!!! Please this is for plato The part labeled A is a<br> And the part labeled B is
    10·2 answers
  • 3. What did Darwin conclude was the reason the Galapagos finches had different shapes and styles of beaks
    5·2 answers
  • If new genetic variation in the experimental populations arose solely by spontaneous mutations, then the most effective process
    5·1 answer
  • Consider this microscopic image of bacteria.
    9·1 answer
  • Gradual variation, as in human skin color, is an example of what?
    15·1 answer
  • Will a mutation in a human skin cell be passed on to the person's offspring?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!