For Each of the Following Sentences, Fill in the Blanks

question 58

Essay

For each of the following sentences, fill in the blanks with the best word or phrase selected from the list below.Not all words or phrases will be used; use each word or phrase only once.
$\begin{array}{lll}\text { A } & \text { medium } & \text { protein } \\\text { central } & \text { P } & \text { RNA } \\\text { DNA } & \text { peptidyl transferase } & \text { small } \\\text { E } & \text { polymerase } & \text { T } \\\text { large } & \text { proteasome } & \text { ubiquitin }\end{array}$

Once an mRNA is produced, its message can be decoded on ribosomes.The ribosome is composed of two subunits: the __________ subunit, which catalyzes the formation of the peptide bonds that link the amino acids together into a polypeptide chain, and the __________ subunit, which matches the tRNAs to the codons of the mRNA.During the chain elongation process of translating an mRNA into protein, the growing polypeptide chain attached to a tRNA is bound to the __________ site of the ribosome.An incoming aminoacyl-tRNA carrying the next amino acid in the chain will bind to the __________ site by forming base pairs with the exposed codon in the mRNA.The __________ enzyme catalyzes the formation of a new peptide bond between the growing polypeptide chain and the newly arriving amino acid.The end of a protein-coding message is signaled by the presence of a stop codon, which binds the __________ called release factor.Eventually, most proteins will be degraded by a large complex of proteolytic enzymes called the __________.

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Definitions:

Accommodation

In cognitive psychology, the process of altering one's mental representations to better accommodate external realities.

Erikson's Stages

A theory proposed by Erik Erikson that outlines eight stages of psychological development, from infancy through late adulthood.

Psychosocial Development

Erik Erikson's theory that individuals go through eight stages of development, each characterized by a specific conflict that must be resolved to move to the next stage.

Ego Identity

A sense of self that develops through social interaction and becomes a centrally held set of values and beliefs that guide behavior.