Answer:
b. the composition of R groups varies among the 20 amino acids in proteins, which can be either polar or charged.
Explanation:
As proteins consist of numerous amino acids connected together, their connections occur uniformly across all amino acids because one segment remains identical among them all.
The remainder of each amino acid, known as the R group, differs across the various types, defining their unique characteristics and contributing to their chemical properties.
Degeneracy
Degeneracy indicates that several codons can encode for the same amino acid during the process of protein synthesis from DNA. A codon comprises a triplet of <span>nucleotides that represents a specific amino acid.
This redundancy means that mutations (like point mutations) are less likely to disrupt the synthesis of proteins. For instance, if the codon sequence GAA, which represents glutamate, changes to GAG, glutamate will still be produced as the code is degenerate. </span>
Cuando el agua es abundante (no limita), las plantas tienen la capacidad de poseer más estomas, lo que aumenta el acceso al agua (y a los iones de hidrógeno necesarios) y proporciona un mejor soporte a los tejidos herbáceos.
Espero que esta respuesta sea correcta :)
