All of the above is the answer
It's something to do with the fact that having sickle cell anaemia reduces the chances of contracting malaria, obviously a very common disease in Africa. I'm not quite sure what the link is but hopefully this helps a little bit?
The gene theory declares that all organisms contain coded information in DNA which dictates the form and function of organisms.
<h3>What does the gene theory state?</h3>
Gene theory is one of the major principles of biology that explains the inheritance of traits coded by gene from parents to offspring.
This theory further explains that genes are located on chromosomes and consist of DNA, which stores them.
Therefore, the gene theory declares that all organisms contain coded information in DNA which dictates the form and function of organisms.
Learn more about gene theory at: brainly.com/question/4432306
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Answer:
1.
BIOLOGY
having a higher osmotic pressure than a particular fluid, typically a body fluid or intracellular fluid.
2.
PHYSIOLOGY
of or in a state of abnormally high muscle tone.
Explanation:
Found it on google ;)
Answer: Males inherit only one X chromosome, so they show all traits on that one chromosome without another to mask them
Explanation: Males are born with XY Females are born with XX
