Microbial Genetics Practice Quiz

These 2 things are required to insert foreign DNA into other organisms.

• DNA Helicase

• DNA Polymerase

• Restriction Enzyme

• DNA Ligase

Which of the following is not a step of translation?

• Initiation

• Elongation

• Polymerization

• Termination

Negative control of gene expression is mediated by __ and results in a(n) __ in the frequency of transcription.

• activators, increase

• activators, decrease

• repressors, increase

• repressors, decrease

___ are DNA sequences which are often located far from the genes they regulate in eukaryotes where transcription activators can bind.

• histones

• promotors

• enhancers

Which is not a type of RNA?

• messenger RNA

• protein RNA

• transfer RNA

• ribosomal RNA

Scientists have determined that the codes for amino acids are _____________.

• different in humans and bacteria

• never the same

• different in bacteria and viruses

• universal

One difference in gene expression between prokaryotes and eukaryotes is that _____________.

• expression is more complex in eukaryotes

• there are no promoters in prokaryotes

• expression is more complex in prokaryotes

• no DNA involved in eukaryotes

When cloned genes are used to modify humans it is called what?

• Cloning

• Transgenic Organisms

• Gene Therapy

• Genetically Modified Organisms

It is probable that when DNA is tightly coiled, ___________________.

• prokaryotes can reproduce

• DNA cannot be transcribed

• the genes are active

• DNA can be transcribed

In RNA, A bonds with T, and C bonds with G.

• True

• False