Answer:
Because natural selection selects for it. Thus it persists.
Explanation:
You have to understand heterozygote advantage. Basically, it's where heterozygotes have an advantage over homozygotes. In the case of sickle cell disease, heterozygotes have an advantage, and natural selection favors whatever is advantageous. Thus, because heterozygotes each have one recessive sickle-cell allele, as natural selection favors the heterozygotes, the recessive sickle-cell allele persists and remains in the gene pool.
Go over materials that where gaven to you and maybe ask your teachers about the subject on the test but just come prepared and be ready for all that you learn about
Ans.
The codons show genetic codes, made up of triplet of nucleotides in DNA or RNA that code for specific amino acids. The different codes can code for a same a amino acid. When a substitutional mutation occurs in genetic material, it shows substitution of one nucleotide pair for another and leads to formation of a different codon.
The first mutation that leads to CAU to CAC, it will not show any potential damage as both CAU and CAC codons code for histidine amino acid.
The second mutation that leads to UGU to UGC will also not show any damage to protein as both of these codons code for cysteine amino acid.
The third codon, that results UCU to UUU will cause a potential damage to protein as UUU codes for phenyl alanine (an aromatic, non-polar amino acid) and UCU codes for serine (a polar amino acid).
Thus, the correct answer is 'option C).' as in a protein, substitution of serine with phenylalanine will lead to change in structure and function of that protein.
Cheese because it is made of mold and mold is good for you, sometimes. Hope this helped!
<h2>Answer</h2><h3>1)</h3>
<em>The business owners’ personal assets are protected from liabilities, but the business is not a separate tax entity </em>Limited liability corporation.<em> </em>
Limited liability corporation is not considered separate from its owners for tax purposes.
<h3>2)</h3>
<em>A single individual is personally responsible for all liabilities incurred by the business </em>Sole Proprietorship.
The business is owned and run by one person, and owner and business are considered as a same entity.
<h3>3)</h3>
<em>One business owner may contribute less time and effort than the other, leading to disputes and bitterness </em>Partnership.
The business is owned and run by more the one person which means there is more than one owner.
<h3>4)</h3>
<em>The business structure is strictly regulated by the government, requires an overwhelming amount of paperwork, and involves high start-up costs </em>Corporation.
A corporation is a legal entity that is separate and distinct from its owners.
<em />
