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
Softa [21]
3 years ago
11

Hemophilia is a genetic disorder that causes a protein required for normal blood clotting to be missing. In a cross with a mothe

r who carries the allele for hemophilia and a father who has normal blood clotting what would be the expected phenotypes of the offspring? A. all females normal, all males normal B. all females normal, all males with hemophilia C. all females carriers of hemophilia, all males normal D. one female normal, one male normal, one female carrier, one male with hemophilia
Biology
2 answers:
Bogdan [553]3 years ago
7 0
Theres a character minimum smh but i think its d pls check though g00gle is fr33
mina [271]3 years ago
6 0

Answer:

The correct answer is D

Explanation:

The gen for hemophilia is located in the X chromosome, making the disease a sex-linked trait.

  • A woman has 2 X chromosomes, so she can carry two copies of the H/h gene. If she carries the dominant allele H in one or two copies she will have normal blood clotting. If the woman has two recessive hh alleles, she will have hemophilia.
  • A man only has one X chromosome (the other sex chromosme is a Y). If that chromosome has the H allele, he will not have the disease; if he has the h allele, he will be hemophilic.

<u>The cross is between a heterozygous woman with a normal man:</u>

<h2>X^H X^h    x   X^H Y  </h2><h2 />

- The woman produces two types of gametes: X^H and X^h

- The man produces two types of gametes: X^H and Y

<u>As a result of a Punnett Square, the expected offspring will be:</u>

1) X^H X^H : normal female

2) X^H X^h : normal female, carrier of hemophilia

3) X^H Y : normal male

4) X^h Y : hemophilic male

The correct answer is D: one female normal, one male normal, one female carrier, one male with hemophilia

You might be interested in
Which of the following best explains the difference between micro and macro evolution? A. Microevolution is based on ideas, whil
gtnhenbr [62]

Answer: C. Microevolution is small scale change to the gene pool of a population while macroevolution is larger scale changes that lead to speciation.

Explanation:

Microevolution can be defined as a small change in the gene frequency within a gene pool of the species, these changes will be inherited by the organisms and there will not be any drastic change at the species level. But in case of macroevolution the large scale change occurs at the genetic level, which retain for long. This leads to development of new organisms or results in speciation.

4 0
3 years ago
1. Would the pollution problems caused by cars and trucks be completely solved if they all became electrically powered overnight
givi [52]

Answer:

1.This doesn't help COMPLETELY get rid of pollution. It might help lessen the pollution, but it definitely won't solve it, because there are also other things that cause pollution.

2.The main problem with solar power that has stifled its use is the fact that energy production only takes place when the sun is shining. And it won't be beneficial to the countries that aren't really close to the equator ( the middle east) and that might be a problem cause there just might not be enough energy/electricity.

6 0
2 years ago
Living things need to maintain their internal environment . This is known as homeostasis What role does homeostasis play in cont
barxatty [35]

Answer:

Homeostasis is the tendency to resist change in order to maintain a stable, relatively constant internal environment. Homeostasis typically involves negative feedback loops that counteract changes of various properties from their target values, known as set points.

5 0
2 years ago
A community is trying to decide on the location
Alenkasestr [34]
The <span>site that could hold the most stores would be the site with the largest area, which the one that would be the least expensive to develop is the one farthest away from the main road. </span>
6 0
3 years ago
Which of the following best describes a DNA molecule
brilliants [131]

Answer:

A. double helix.

Explanation:

5 0
2 years ago
Other questions:
  • 30 points!!!!!!! Compare and contrast the role of a producer and a consumer in a food chain.
    12·2 answers
  • A lion eating a zebra is an example of which characteristic of life?
    9·2 answers
  • 10. According to the passage, the bionic pancreas makes corrective actions that return blood
    11·1 answer
  • Which of these describes loose connective tissue? (A) It is a loose weave of fibers that functions as a packing material. (B) It
    11·1 answer
  • 1. Look at Figure 2. Where can you find each of the three states <br> of water?
    8·1 answer
  • Which of these is true about energy? A Can be destroyed B Cannot be created C Cannot be transformed D Can be increased in a clos
    12·2 answers
  • What stores urine until it is released from the body?
    11·2 answers
  • Which of the following is NOT one of the classifications of tissue?
    13·1 answer
  • Eating plenty of low-iron foods can help cure and prevent anemia. this is true or false ? Science homework:0
    11·1 answer
  • En que conciste la funcion de relacion?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!