Researchers Have Identified and Sequenced the Genes Encoding Proteins Associated

question 107

Multiple Choice

Researchers have identified and sequenced the genes encoding proteins associated with nuclear pores in both yeast and vertebrates.They have used these data to determine the amino acid sequences of these proteins and have applied molecular modeling techniques to predict the three-dimensional structures of the proteins.All contain nearly identical folding regions that may serve to hold lipid membranes in sharp curves.Because this finding has been demonstrated in both yeast and vertebrates (representing organisms that diverged long ago in evolutionary history) , it provides evidence of a possible mechanism for the evolution of a subcellular structure.Which subcellular structure is this?

• A) Cell membrane
• B) Mitochondrion
• C) Plastid
• D) Endomembrane system
• E) Chloroplast

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Definitions:

Genetic Influences

The impact that the genetic makeup of an individual has on their traits, behavior, and susceptibility to certain conditions.

Hormonal Influences

The effect that hormones have on bodily functions, mood, behavior, and overall health, often influencing growth, metabolism, sexual function, and mood.

Y Chromosome

A sex chromosome typically found in males, paired with an X chromosome in XY sex-determination systems, playing a crucial role in male development and fertility.

X Chromosome

is one of the two sex chromosomes, with females typically having two X chromosomes and males having one X and one Y chromosome.