Describe how temperatures above 35 C most likely affect the structure and function of the starch synthase in the particular stra

Respuesta:

A partir del peso molecular dado - 17,000, la proteína de los glóbulos rojos es Hemoglobina A (Hb A).

Explicación:

La técnica utilizada para la separación de moléculas de proteínas según su tamaño molecular en el estudio de biología molecular, junto con un marcador de proteína de referencia para identificar el tamaño exacto de proteína desconocida, se conoce como electroforesis en gel de poliacrilamida con SDS. Durante el proceso de separación de proteínas, ADN y ARN, entre otros, el dodecil sulfato de sodio se utiliza como un compuesto orgánico sintético empleado como tensioactivo en la solución de lisis.

Con base en el peso molecular dado - 17,000, la proteína en los glóbulos rojos es Hemoglobina A (Hb A). Su función consiste en transportar oxígeno desde los órganos respiratorios hacia el resto del cuerpo y tejidos. La Hb A se presenta en forma de tetámero, es decir, contiene cuatro subunidades que consisten en dos subunidades alfa y dos beta, cada una compuesta por 141 y 146 residuos de aminoácidos, respectivamente. Cada subunidad tiene un tamaño molecular de aproximadamente 16,000 daltones y son estructuralmente similares y del mismo tamaño.

Answer:

1. A

2. D

3. A

4. A

5. A

Explanation:

Question from alternative source

Numerous mutation types can arise in the body. Cystic fibrosis is a genetic condition attributed to various mutations in the CFTR gene. A specific mutation in the CFTR gene related to cystic fibrosis results in an earlier-than-expected termination of translation in the gene sequence. Which kind of mutation leads to this translation error resulting in cystic fibrosis?

• silent
• missense
• nonsense
• deletion

Answer:

Nonsense

Explanation:

Nonsense mutations refer to those that create a premature stop codon. The stop codons include UAG, UAA, and UGA. This situation could occur if a nucleotide substitution happens in the mRNA codon UAC (which codes for the amino acid Tyrosine) changing to UAG (which signifies a stop codon).

Upon reaching this codon, the translation machinery would interpret it as a directive to end translation. Consequently, the mRNA would be released, leading to a truncated version of the amino acid, which is likely not functional and could be flagged for destruction by the cell.

The correct choice is Option E. Prolonged telomeres facilitate the formation of cancer cells. Telomeres are the repetitive DNA sequences located at the ends of eukaryotic chromosomes. Typically, during the replication of eukaryotic chromosomes, telomeres are not completely duplicated, leading to their gradual shortening with each cell division. This process contributes to cellular aging and halts cell division, thereby serving as a barrier against cancer, which flourishes with elongated telomeres.

Answer:

Species A, B, and C share the same phylum.

Explanation:

Organisms are categorized based on a taxonomic structure that involves various ranks such as species, genus, order, and family.

This hierarchy includes:

Domain

Kingdom

Phylum

Class

Order

Family

Genus

Species

Species represents the most specific taxonomic rank, while Domain indicates the broadest. Every organism within a lower rank also belongs to a higher-ranked category. For example, all organisms within the same species will also belong to the same genus, but the converse is not necessarily true.

Based on the information provided, since species A and C fall under the same order, it implies they are also classified within the same class and phylum...

Furthermore, species A and B are classified in the same phylum, thus since species C is within the same phylum as A, it indicates that all three species are in the same phylum.