Answered

Welcome to Westonci.ca, the Q&A platform where your questions are met with detailed answers from experienced experts. Our platform offers a seamless experience for finding reliable answers from a network of knowledgeable professionals. Join our Q&A platform to connect with experts dedicated to providing accurate answers to your questions in various fields.

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
Thank you for your visit. We're dedicated to helping you find the information you need, whenever you need it. We appreciate your time. Please revisit us for more reliable answers to any questions you may have. Discover more at Westonci.ca. Return for the latest expert answers and updates on various topics.