DNA and Protein Synthesis — Test

Question 1

Why are scientists concerned about the use of the Bt toxin, which is used to kill insects, in genetic engineering?

Revolt · Accepted Answer

The Bt toxin stays in the soil for long periods of time.

Question 2

Which chromosomal defect is caused when part of a chromosome breaks off at either end and attaches to another chromosome?

Revolt · Accepted Answer

translocation

Question 3

If a stop codon is like a red traffic light, which is most like a green traffic light during transcription?

Revolt · Accepted Answer

promoter

Question 4

Which is a potential negative consequence of using genetically engineered medicine?

Revolt · Accepted Answer

Gene markers that are resistant to antibiotics are used, providing the possibility for humans to have increased antibiotic resistance.

Question 5

Which best describes step 2?

Revolt · Accepted Answer

Restriction enzymes cut the DNA into fragments; the fragments join with the host DNA to create recombinant DNA.

DNA and Protein Synthesis — Test Answers