Answered

Looking for trustworthy answers? Westonci.ca is the ultimate Q&A platform where experts share their knowledge on various topics. Ask your questions and receive accurate answers from professionals with extensive experience in various fields on our platform. Our platform offers a seamless experience for finding reliable answers from a network of knowledgeable professionals.

Which list contains only neutral polar amino acids?

A. Ser, Cys, Phe, Glu
B. Asn, Gln, Cys, Tyr
C. Lys, Glu, Thr, Tyr
D. Cys, Asn, His, Arg

Sagot :

GinnyAnswer
To determine which list contains only neutral polar amino acids, we first need to review the characteristics of neutral polar amino acids. Neutral polar amino acids possess side chains that can form hydrogen bonds but do not carry a charge at physiological pH (pH ~7). Common neutral polar amino acids are:

- Serine (Ser)
- Threonine (Thr)
- Asparagine (Asn)
- Glutamine (Gln)
- Cysteine (Cys)
- Tyrosine (Tyr)

Now, let's analyze each provided list to identify which one contains only neutral polar amino acids:

A) Ser, Cys, Phe, Glu
- Serine (Ser) - Neutral polar amino acid
- Cysteine (Cys) - Neutral polar amino acid
- Phenylalanine (Phe) - Non-polar amino acid
- Glutamic acid (Glu) - Negatively charged (acidic) amino acid
- Conclusion: This list contains phenylalanine and glutamic acid, which are not neutral polar amino acids.

B) Asn, Gln, Cys, Tyr
- Asparagine (Asn) - Neutral polar amino acid
- Glutamine (Gln) - Neutral polar amino acid
- Cysteine (Cys) - Neutral polar amino acid
- Tyrosine (Tyr) - Neutral polar amino acid
- Conclusion: This list contains only neutral polar amino acids.

C) Lys, Glu, Thr, Tyr
- Lysine (Lys) - Positively charged (basic) amino acid
- Glutamic acid (Glu) - Negatively charged (acidic) amino acid
- Threonine (Thr) - Neutral polar amino acid
- Tyrosine (Tyr) - Neutral polar amino acid
- Conclusion: This list contains lysine and glutamic acid, which are not neutral polar amino acids.

D) Cys, Asn, His, Arg
- Cysteine (Cys) - Neutral polar amino acid
- Asparagine (Asn) - Neutral polar amino acid
- Histidine (His) - Positively charged (basic) amino acid
- Arginine (Arg) - Positively charged (basic) amino acid
- Conclusion: This list contains histidine and arginine, which are not neutral polar amino acids.

Based on the analysis, the list that contains only neutral polar amino acids is:

B) Asn, Gln, Cys, Tyr
Thanks for using our service. We aim to provide the most accurate answers for all your queries. Visit us again for more insights. Thanks for using our platform. We aim to provide accurate and up-to-date answers to all your queries. Come back soon. We're glad you chose Westonci.ca. Revisit us for updated answers from our knowledgeable team.