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kykrilka [37]
3 years ago
6

The presence of what group differentiates most amino acids from each other?

Biology
1 answer:
Karolina [17]3 years ago
6 0
 <span>Amino acids are the basic structural unit of all proteins. A 'free' amino acid (a single amino acid) always has: 
an amino group -NH2, 
a carboxyl group -COOH 
a hydrogen -H 
a chemical group or side chain -"R". 
Since the amino acids (except glycine) have 4 different groups attached to the a-carbon, they are optically active stereoisomers (recall 23.101 Organic Chemistry) although only L-isomers are found in proteins. 
At a neutral pH, both the amino and the carboxyl groups are ionised, giving what is termed the zwitterionic</span>
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Which evolutionary process involves the slow addition of allelic variation that increases the hereditary diversity of population
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Answer:

Mutation

Explanation:

Mutation is a change in the nucleotide sequence by addition, deletion, substitution, etc which results in the slow addition of allelic variation that increases the diversity in a population and leads to evolutionary change.

The right mutation in the allele or gene is favored by nature and it is passed in the next generation through reproduction. Mutation helps in the survival of a population in the continuously changing environment by adding new alleles that increase the fitness of the organism. So the correct answer is mutation.

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Ready-to-eat tcs food must be date marked if it will be stored for longer than:
Daniel [21]

Given what we know, we can confirm that ready-to-eat TCS food must be date marked if it will be stored for longer than 24 hours.

<h3>What is TCS food?</h3>
  • TCS food refers to food that must be stored in temperature-controlled environments to ensure safety.
  • These foods, if not stored properly and at the correct temperatures can cause sickness to the consumers.

<h3>Why does it need to be date-marked?</h3>
  • The reason the foods need to be date-marked is to relay information to the potential consumer as to by when the food should be consumed.
  • This is done to ensure that if stored correctly, the food does not have time to spoil and cause health risks for consumers.
<h3 /><h3 />

Therefore, we can confirm that ready-to-eat TCS food must be date marked if it will be stored for longer than 24 hours in order to <em><u>protect the </u></em><em><u>health </u></em><em><u>of the </u></em><em><u>consumers</u></em><em><u>. </u></em>

<em><u /></em>

To learn more about TCS food visit:

brainly.com/question/4247127?referrer=searchResults

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What role does mutation play in the evolution of a species and the development of new characteristics?
aivan3 [116]

Answer:

Mutation plays a vital part in evolution; it is the greatest source of genetic variation. In evolution, it creates a new DNA sequence for a particular gene, creating a new allele. Additionally, recombination can produce a DNA sequence (a new allele) for a specific gene through intragenic recombination.

Explanation:

Hope this helps!

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