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
slamgirl [31]
3 years ago
9

Sicle cell disease (SCD) is found in numerous populations whose ancestral homes are in the malaria belt of Africa and Asia. SCD

is an autosomal recessive disorder that results from homozygosity for a mutant β-globin gene allele. Data on one affected population indicates that approximately 8 in 100 newborn infants have SCD.Epidemiologic data on this population reveal that before the application of modern medical treatment, natural selection played a major role in shaping the frequencies of alleles. Heterozygous individuals have the highest relative fitness, and in comparison to heterozygotes, those who are βAβA have a relative fitness of 89 percent, but only about 43 percent of those with SCD survived to reproduce. What is the frequency of the wild-type (beta A) allele in this population? Express your answer using two decimal places. What is the frequency of the mutant (beta 8) allele in this population? Express your answer using two decimal places. What is the frequency of carriers of SCD in the population? Express your answer using two decimal places.
Biology
1 answer:
user100 [1]3 years ago
6 0

Answer:

j

Explanation:

You might be interested in
What percent of species become extinct when mass extinction occurs?
777dan777 [17]

Answer:

Scientists estimate that at least 99.9 percent of all species of plants and animals that ever lived are now extinct.

Explanation:

(Happy to help)

6 0
3 years ago
In a tube filled with water, the pressure is ____ at the top and at the bottom
pshichka [43]

Answer:

equal

Explanation:

it is equal ....mejejwiidifr

4 0
2 years ago
Sharps are medium-length needles with round eyes. <br> a. True <br> b. False
Elodia [21]
TRUE, with also sharp points
8 0
3 years ago
Which stage of the cell cycle results in two identical cells?
ludmilkaskok [199]

Which stage of the cell cycle results in two identical cells?

Answer:

Mitosis because mitosis itself consists of five active steps.

Hope I helped

--Jay

3 0
3 years ago
Read 2 more answers
True or False. When paired with an immunosuppressant drug, saccharine (sugar) did not have immunosuppressant effects on rats.
Anastaziya [24]

The statement 'when paired with an immunosuppressant drug, saccharine (sugar) did not have immunosuppressant effects on rats' is FALSE. Saccharine is an artificial sweetener.

<h3>Immunosuppressant drugs and saccharine</h3>

Immunosuppressant drugs are a type of drug that exhibits a depressive effect o the immune system of the individual.

Immunosuppressant drugs include, for example, adalimumab, infliximab, calcineurin inhibitors, cyclosporine, etc.

Moreover, saccharin is an artificial sweetener that is 400 times as sweet as sucrose (sugar).

Learn more about immunosuppressant drugs here:

brainly.com/question/830058

4 0
2 years ago
Other questions:
  • What ocean contains most of the worlds active volcanoes?
    10·1 answer
  • What is reproduce? People
    6·2 answers
  • Grace recently took a cruise onboard a luxury liner. a few days into her vacation, she developed signs of ____ infection, the mo
    8·1 answer
  • Which metamorphic process usually produces foliated rocks?
    6·1 answer
  • Our bodies are made up of the same types of organic compounds as all other living organisms. Complete the following sentences by
    10·1 answer
  • Is sickle cell gene mutation positive, negative, or neutral?
    9·1 answer
  • What is the main advantage of small cell size
    8·2 answers
  • What is the definition of the word Transformation
    5·2 answers
  • If you continue operating the tractor at its current level, how many acres can you expect to fertilize in the next hour?
    12·1 answer
  • In which phase of the sbir grant process are funds used to create a prototype of a product or service?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!