Exam 9: How Genes Work

Protein coding genes specify the production of ________ as their immediate product.

Gene regulation is the ability to

Which of the following codons codes for Proline?

Use the following chart to determine the chain of amino acids that would be produced by the entire sequence UGUACGAUAGGCUAG.

Prokaryotes lack membrane-enclosed organelles and thus do not have nuclei.Therefore,

In bacteria,the antibiotic tetracycline blocks the site where tRNA molecules enter the ribosome.The most likely reason that bacteria die from treatment with tetracycline is because the antibiotic

DNA technology can be used with all organisms because they all

The codon GAU codes for which amino acid?

In bacteria,the antibiotic chloramphenicol prevents amino acids from bonding together.The most likely reason that bacteria die from treatment with chloramphenicol is because the antibiotic

Some viruses produce an enzyme called reverse transcriptase.Based on your understanding of gene expression,what should this enzyme do?

MATCHING Identify if the following increase or decrease transcription or translation. -RNA polymerase binds to the promoter more easily.

Following transcription,the

In bacteria,a particular gene codes for a protein that helps the bacteria break down and use lactose as a food source.If no lactose is present,

MATCHING Identify if the following increase or decrease transcription or translation. -More ribosomes are produced.

During transcription,

The importance of tRNA is that it

Organisms can regulate both transcription and translation to control gene expression.What is one advantage and one disadvantage of regulating transcription rather than translation?

Bacteria do not have a nucleus,and therefore do not use RNA splicing after translation.The initial mRNA that is produced is translated directly.An experiment transforms a bacterial cell and a eukaryotic cell with an identical gene (of identical length).Explain how the proteins from each cell would differ.

Consider a build-at-home bookshelf that comes with instructions and various pieces of wood as an analogy for translation.In this analogy,what would best match the job of the ribosome?

The genetic code is ________,which means that all cells use the same code.