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
Gnoma [55]
3 years ago
5

You are analyzing a human pedigree for a new disease and discover that the disease occurs with the same frequency in both sexes

and that 25% of the children from two unaffected heterozygous parents have the disease. This disease is displaying ____ inheritance.
A. autosomal recessive
B. autosomal dominant
C. sex-linked recessive
D. sex-linked dominant
Biology
1 answer:
Natasha_Volkova [10]3 years ago
6 0

Answer:

The correct answer is A. autosomal recessive

Explanation:

In an autosomal disease, the mutation occurs in the autosomal chromosome, not in the sex chromosome. In autosomal recessive disease if both the defected allele from parent comes in the child then only the child would be affected by the disease. If the offspring have single defected allele than he is said to be a carrier.

So as the defect is not in sex chromosome the disease will occur in the same frequency in both the sexes and if parents are carriers which means they are not affected by disease than 25% offspring can have the disease because out of four offspring one can get both the defected allele, one from each parent. So the correct answer is A.

You might be interested in
Which characteristic of living things would apply to adapting to light and temperature variation?
skad [1K]

Answer:

Responsiveness to the environment/adaptation. This is one of the 8 characteristics of living things.

Explanation:

5 0
3 years ago
A simplified model of the human blood-type system has four blood types: a, b,ab and o. thereare two antigens, anti-a and anti-b.
Kay [80]
First calculate the probability of type AB, which is the remainder after subtracting types A, B and O.

P(AB) = 1-(0.34+0.12+0.5) = 1-0.96 = 0.04

Anti-b will react with types B and AB, so 
P(reaction) = P(B)+P(AB) = 0.12 +  0.04 = 0.16

Answer: For this person, the probability of reaction with anti-b is 0.16
8 0
3 years ago
What does it mean if there are two different alleles for a trait
lara31 [8.8K]

Answer:

They are know as heterozygous alleles.

Explanation:

Two IDENTICAL alleles are known as homozygous<em> </em>alleles.

I hope this helps you understand the difference, and as always, I am joyous to assist anyone at any time.

3 0
3 years ago
What life process is it when the synthesis of glycogen from glucose in the liver
m_a_m_a [10]
ATP/Energy —- why does this have to be at least 20 characters long lol.
7 0
3 years ago
Which country's colonists maintained a profitable fur trade in North America
Tom [10]

Answer:

The North American fur trade was an industry and activity related to the acquisition, trade, exchange, and sale of animal furs in North America. Aboriginal peoples in Canada and Native Americans in the United States of various regions traded among themselves in the pre–Columbian Era. Europeans participated in the trade from the time of their arrival in the New World, extending the trade's reach to Europe. The French started trading in the 16th century, the English established trading posts on Hudson Bay in present-day Canada during the 17th century, while the Dutch had trade by the same time in New Netherland. North American fur trade was at its peak of economic importance in the 19th century, and involved the development of elaborate trade networks.

The fur trade became one of the main economic ventures in North America attracting competition among the French, British, Dutch, Spanish, and Russians. Indeed, in the early history of the United States, capitalizing on this trade, and removing the British stranglehold over it, was seen as a major economic objective. Many Native American societies across the continent came to depend on the fur trade as their primary source of income. By the mid-1800s changing fashions in Europe brought about a collapse in fur prices. The American Fur Company and some other companies failed. Many Native communities were plunged into long-term poverty and consequently lost much of the political influence they once had.

Explanation:

7 0
3 years ago
Other questions:
  • Condensation reactions are also referred to as dehydration synthesis explain how the name dehydration synthesis is descriptive o
    11·1 answer
  • Where does Achondroplasia (Dwarfism) come from?
    5·1 answer
  • Which statement best describes a difference between prokaryotic cells and eukaryotic cells? *
    11·2 answers
  • 10 points for each valid answer! Thanks.
    9·1 answer
  • The roots growing down is an example of _______________
    14·2 answers
  • Reset
    9·1 answer
  • The variety of organisms within an ecosystem is characteristic of which type of diversity?
    6·1 answer
  • The ___________ is an example of bone as an organ; ___________ bone is an example of bone as a tissue.
    11·1 answer
  • When the cell is preparing to divide, DNA replicates and begins to coil around itself and around ______________.
    14·1 answer
  • During which type of solar weather would one predict power grid operations on Earth could degrade?
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!