Exam 10: How Genes Work

A silent mutation is a mutation where a DNA nucleotide has changed,but the resulting protein is identical to the protein produced before the mutation.Explain why such a mutation is possible.

The function of genes is to control the production of

Explain how different cells in a human body,such as liver cells and skin cells,house the same genetic material but have different functions.

One concern with biopharming is that genes used to produce desired proteins could "escape" a laboratory setting and spread to food crops.What does it mean for a gene to "escape?" How would food crops be affected?

If a molecule of mRNA is a sentence,its bases are the letters and the codons are the ________.

Explain what is meant by "redundancy" in the genetic code.

Following transcription,the

Since 1900,at least ________ people worldwide have died as a result of an H1N1 influenza infection.

Put the following steps in the process of translation in chronological order. -mRNA binds to a ribosome.

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

Match the steps of transcription and translation to the location they take place within a eukaryotic cell. -RNA splicing

The process of using an RNA template to make proteins is called ________.

An mRNA molecule that is 99 bases long will create a protein composed of

A mutation in the promoter region of a specific gene prevents RNA polymerase from binding.How would this mutation affect the function of this gene?

The expression of most genes is regulated by

The importance of tRNA is that it

Identify if the following situations represent an increase or decrease in transcription or translation. -Fewer RNA polymerase enzymes are produced.

Match the descriptions to the molecules of transcription and translation. -important part of ribosomes

Translate the following DNA sequence into a sequence of amino acids: TACTAAGGA.

Bacteria and humans use the same DNA components,and both kinds of cells also perform transcription and translation.Which of the following choices is a potentially significant outcome of this shared mechanism?