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Anuta_ua [19.1K]
3 years ago
12

Can you guys please help me with this question?❤️

Biology
2 answers:
Lilit [14]3 years ago
5 0

Answer:

B. Inheriting a specific gene

Explanation:

Sickle cell anemia is a genetic disorder whose gene likely originated in places where illnesses like malaria are common; the sickle cells help prevent people from getting sickened as bad in that case.

Have a good day!

Oksana_A [137]3 years ago
3 0

Answer:

With less oxygen, the abnormal hemoglobin S gene can cause rigid, nonliquid protein strands to form within the red blood cell. These rigid strands can change the shape of the cell, causing the sickled red blood cell that gives the disease its name.

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A gene has 2 alleles, R & B, List the possible genotypes? I also need help with questions 5, 6, 7 and 8 please help! Pls loo
irakobra [83]

Answer:

5.) The possible genotypes should be: RR RB BB ( if the could for the same proteins)

6.) Frequency of R: 0.5

7.)Frequency of R: 0.5

8.)Frequency of R: 0.375

Explanation:

5.) If R and B code for the different forms of the same protein then they are only a few possible out comes

6.) First calculate the total alleles in population

allele R= 40

Allele B=40

total allele = R+B= 40+40

=80

Now to find allele R frequency is:

(Total R alleles) / (Total allele in pop)

40/80=

0.5

7.)Calculate the total alleles

Alleles from for R

RR= 10

R=10x 2= 20

Multiply the value by 2 because there are 2 R alleles present in

RB=20

R=20

Number doesn't change there is only 1 R allele

Total R=20+20

=40

Alleles For B

BB=10

B=10×2

=20

Same thing here, two B alleles together so multiple by 2

RB=20

B=20

Total B= 20+20

=40

Total alleles in pop add

40+40

=80

Frequency of R

Total of R/Total Alleles

=40/80

=0.5

8.)Repeat the same thing in 7 but use different numbers

RR=10

R=10x2

=20

RB=10

R=10

Total R= 20+10

=30

5 0
3 years ago
What is the difference between microscopic and macroscopic ecosystems?
horsena [70]

Answer:

Microscopic ecosystems consist of the organisms that are microscopic in nature or that which cannot be seen by naked eyes. They are mostly found in soil oceans and some are even living in association with plant and animals.

Macroscopic ecosystem consist of the organisms that can be observed with naked eyes.

They are mainly of 3 types:

  1. Terrestrial
  2. Aquatic
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7 0
3 years ago
give one examples of an animal that are adapted to the following such as hop and run very fast ,survive on Less food and water ,
mariarad [96]
1. Bunny
2. Camel
3. Monkey

Hope it’s correct
7 0
3 years ago
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What percent of the trees cut down are used for something other than paper?
ELEN [110]
Thirty-five percent of the trees cut down are used to make paper. That means sixty-five percent of the trees cut down are used for something other than paper. Thank you for posting your question. I hope this answer helped you. Let me know if you need more help. 
7 0
3 years ago
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The body can be invaded by pathogens , which are harmful microorganisms that cause infection diseases. The body then initiates a
pochemuha

Answer:The term "disease" refers to conditions that impair normal tissue function. For example, cystic fibrosis, atherosclerosis, and measles are all considered diseases. However, there are fundamentally different causes for each of these diseases. Cystic fibrosis (CF) is due to a specific genotype that results in impaired transport of chloride ions across cell membranes, leading to the production of abnormally thick mucus. Thus, CF is most accurately called a genetic or metabolic disease. Atherosclerosis, which can lead to heart attacks and strokes, may be considered a disease of aging, because it typically becomes a problem later in life after plaques of cholesterol have built up and partially blocked arteries. In contrast, measles is an infectious disease because it occurs when an individual contracts an outside agent, the measles virus. An infectious disease is a disease that is caused by the invasion of a host by agents whose activities harm the host's tissues (that is, they cause disease) and can be transmitted to other individuals (that is, they are infectious).

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