Bio Ch. 12

What molecule indirectly provides the energy for translation?

ATP

The amino acids of a growing polypeptide chain are held together by what kind of bond during the elongation stage of translation?

peptide

Transcription begins near a site in the DNA called the ______.

promotor

What molecule(s) exhibits self-splicing?

rRNA and tRNA

More than one codon can specify the same amino acid.

true

RNA polymerase II of eukaryotes always requires more than one general transcription factor to initiate transcription.

true

The molecule mRNA, which contains the information to make a polypeptide, is constructed from a DNA template

true

The termination of translation occurs when a release factor recognizes the stop codon.

true

Evaluate the reasons ribosomal genes are useful for comparing evolutionary relationships among organisms?

because all organisms posses these genes and can be compared with each other

The most common eukaryotic ribosome carries out its function in the

cytosol

The processes of transcription and translation are collectively known as

gene expression

Intervening sequences that are transcribed, but not translated into protein are called

introns

The process that produces mRNA from DNA is called

transcription

What protein influences the ability of RNA polymerase to transcribe genes?

transcription factors

How many nucleotides are contained in a single codon?

3

A single gene always encodes for an enzyme.

false

As part of the transcriptional unit, regulatory sequences are the sites where RNA polymerase and transcription factors bind to regulate transcription.

false

In eukaryotes, 40S and 60S combine to form a 100S ribosome.

false

The cells of every organism make only a few different tRNA molecules encoded by the same gene.

false

Translation is a relatively slow process.

false

tRNA contains the genetic code for producing a polypeptide.

false