Polymerase chain reaction allows ________.
Answer
insertion of new DNA segments into a DNA molecule
insertion of new RNA segments into a DNA molecule
specific mutations to occur within a DNA molecule
multiple copies of DNA to be made
A scientist wants to insert a gene for vitamin A into a rice plant. The scientist would use ________.
Answer
a vector
a restriction enzyme
DNA ligase
All of the choices are correct.
Insulin and human growth hormone are two examples of products produced by ________.
Answer
transgenic plants
"pharm" animals
transgenic bacteria
All of the choices are correct
Which of the following is in correct order for the lac operon?
Answer
lactose binds to repressor – RNA polymerase binds to promotor – repressor binds to operator
repressor binds to operator – RNA polymerase binds to promotor – lactose binds to repressor
repressor binds to operator – lactose binds to repressor – RNA polymerase binds to promotor
RNA polymerase binds to promotor – repressor binds to operator – lactose binds to repressor
Mechanisms of gene expression in eukaryotes affect ________.
Answer
activation of the operon
the speed of gene expression
the length of time a gene is expressed
both the speed and length of time of gene expression
Answer
insertion of new DNA segments into a DNA molecule
insertion of new RNA segments into a DNA molecule
specific mutations to occur within a DNA molecule
multiple copies of DNA to be made
A scientist wants to insert a gene for vitamin A into a rice plant. The scientist would use ________.
Answer
a vector
a restriction enzyme
DNA ligase
All of the choices are correct.
Insulin and human growth hormone are two examples of products produced by ________.
Answer
transgenic plants
"pharm" animals
transgenic bacteria
All of the choices are correct
Which of the following is in correct order for the lac operon?
Answer
lactose binds to repressor – RNA polymerase binds to promotor – repressor binds to operator
repressor binds to operator – RNA polymerase binds to promotor – lactose binds to repressor
repressor binds to operator – lactose binds to repressor – RNA polymerase binds to promotor
RNA polymerase binds to promotor – repressor binds to operator – lactose binds to repressor
Mechanisms of gene expression in eukaryotes affect ________.
Answer
activation of the operon
the speed of gene expression
the length of time a gene is expressed
both the speed and length of time of gene expression