Vocab 9 Review

Front

What is a codon?

Back

A group of three nucleotides in mRNA that codes for a specific amino acid in protein synthesis.

Front

What are hox genes?

Back

Group of homeotic genes clustered together that determine the head to tail identity of body parts in animals.

Front

What is RNA?

Back

Single stranded nucleic acid that contains the sugar ribose.

Front

What is a polypeptide?

Back

A long chain of amino acids that makes up a protein.

Front

What is messenger RNA?

Back

Molecules of RNA that carry instructions from the nucleus to the ribosomes in the cytoplasm.

Front

What is the role of ribosomal RNA?

Back

Ribosomal RNA is a component of ribosomes, which are the sites of protein synthesis.

Front

What is transfer RNA?

Back

Molecules of RNA that transport amino acids to the ribosome during protein synthesis.

Front

What is an exon?

Back

A segment of a gene that codes for a protein and is expressed in the final mRNA.

Front

What is an intron?

Back

A non-coding segment of a gene that is removed during RNA processing.

Front

What is an operon?

Back

A cluster of genes under the control of a single promoter, functioning together in prokaryotic cells.