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
mart [117]
3 years ago
6

In humans, the condition for normal blood clotting (H) dominates the condition for non clotting (hemophilia) (h). Both alleles a

re linked to the X chromosome. A male hemophiliac marries a woman who is a carrier for this condition. (In this respect, a carrier is a woman who has an allele for normal blood clotting and an allele for hemophilia.) If they have a son, what are the chances he will be normal for blood clotting
Biology
1 answer:
Fudgin [204]3 years ago
8 0

Answer:

The correct answer would be - 50%.

Explanation:

Hemophilia is a sex-linked recessive disorder that takes place in males more than in females as females have two X chromosomes so if one is affected other still able to make clotting factors but in males, there are only one x chromosome.

If a hemophilic man XhY marries with a carrier women XHXh then the chances of their son for normal blooding would be :

Gametes:

Male: Xh and Y

Female: XH and Xh

Then cross:

             Xh                          Y

XH      XHXh                     XHY

    (carrier daughter)      (normal son)

Xh        XhXh                    XhY

 (hemophilic daughter)  (hemophilic son)

Thus, the chances of normal son is 50% among sons

You might be interested in
Which statement best explains why Earth's lithosphere is broken into tectonic plates?
Nadusha1986 [10]

Answer:

( d ) The brittle lithosphere cracks under pressure from the moving asthenosphere.

Explanation:

~ The earth's crust refers to the outer layer of the planet earth . The surface of a planet is usually formed of less dense material than the deeper layers. Only 1/3 of the earth's crust is terrestrial , the rest is covered by oceans . The thickness of the earth's crust is between 10 to 30 miles.

The earth's crust, which is the upper part of the lithosphere , is divided into two layers. The top layer is continental , which is composed of granite . While under granite is a layer of hard rock called basalt .

On a semi-liquid planet , such as Earth , the earth's surface floats on top of the liquid inner layer. The crust seems to be often divided into pieces known as tectonic plates which due to the movement of molten magma beneath it, are able to move. This is a phenomenon of continental drift theory . In addition, collisions between two tectonic plates can produce volcanoes .

The Earth's crust is made up of rocks, minerals, soil and fossil fuels.

6 0
2 years ago
Explain how salinity and temperature affect water density and how the salinity of the oceans can be both increased and decreased
finlep [7]

Answer:

Salinity is the <em><u>salt concentration</u></em> in water. Oceans salinity and temperature affect density of water, Higher the salinity denser the water and Lower the temperature denser the water.

Explanation:

As we go down in the ocean , temperature goes down and denser the water.

Less dense water will be on top and higher the density will be on bottom. Warmer water will be on top.

Salinity <em> increased</em> in ocean on evaporation of sea water and formation of ice in water. Weathering of rocks , formation of soil also add minerals and salt in ocean.

Melting of snow, ice in sea, addition of river freshwater and precipitation of rain <em>decrease </em>the salinity of ocean.

8 0
3 years ago
What is a molecule????
Anettt [7]

Answer:

a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction.

6 0
2 years ago
During which process is mRNA synthesized from a DNA template with the aid of RNA polymerase?
Temka [501]
I guess it is A: transcription
7 0
3 years ago
Read 2 more answers
Which of the following is most inclusive?<br> a. allele<br> b. genotype
Vikentia [17]

Answer:

The answer is Genotype.

3 0
2 years ago
Read 2 more answers
Other questions:
  • What extends from inside Earth's crust to the lower atmosphere
    10·1 answer
  • The list below shows some events which took place at different periods in the geologic time scale.
    13·1 answer
  • The heat you feel when you put your hands above fire?
    6·1 answer
  • Below is a list of cell processes.
    9·1 answer
  • The sodium-potassium pump establishes concentration gradients:
    5·1 answer
  • One of the functions of the skeleton is to produce blood cells.<br><br> True<br> False
    13·1 answer
  • Plant that has round and yellow seeds (RrYy) is crossed with a plant that has round and yellow seeds (RrYy). What is the ratio o
    7·2 answers
  • Help Please
    12·1 answer
  • Keystone predators often help maintain ecological stability in a community if they
    11·1 answer
  • Why is maintenance of a constant blood pH critical for body processes?
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!