Answer:
The character of sickle cell anaemia does not get fixed in the population Because it has more disadvantages than advantages
Explanation:
Any character will get fixed in the population if the character provides the progeny certain advantage to reproduce better.The rate of malaria infection is low, but such people may have breathing difficulties and organs may fail due to the wrinkled RBC's not able to flow smoothly in the arteries and hence causing blockages. the character may be recessive but again the amount of oxygen carried per healthy RBC is less and that makes breathing difficult . so as a character its a disadvantage for the person who is a career and hence not being selected to be fixed.
Answer:
a.Natural selection
b.Evolution
c.Artificial selection
d.Co-evolution
The correct option is A.
Natural selection.
Explanation:
The correct answer is natural selection because Natural selection is an evolutionary process which was discussed by Charles Darwin in 1859, In one of his theory that it is the ability of organisms to develop traits or characteristics that will help them to adapt and ensure their survival in their environment and then passing or transferring these new traits to new species or offsprings over generations through reproduction.
B) Both parents are heterozygous. It is clear that Black fur is a dominant trait, so a white mouse is the result of two submissive traits clicking together.
(4) People who have the O blood type possess no enzymes capable of attaching N-acetylgalactosamine or galactose on RBC membrane glycolipids at the end of the oligosaccharide chain. It’s the people with AB blood type who can possess enzyme with that capability.
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Answer:
Dodo bird...................
