Genetic engineering

What is recombinant DNA

• DNA from 2 different organisms combined

• DNA from 2 different ribosomes

• DNA that is separated out from a vector

Tags

NGSS.HS-LS3-2

Which of the following could be used as a transporter for a human gene?

• Bacterial Plasmid

• Bacteria

• A mitochondria

• mRNA

Which enzyme glues DNA together?

• Ligase

• Polymerase

• Helicase

• Sucrase

How do restriction enzymes "know" where to cut DNA

• A specific sequence of nucleotides

• They cut randomly

• Distance from the centromere

"Sticky-ends" are DNA strands with:

• single-stranded ends

• ends cut flat by an enzyme

• no way to be recombined

"transgenic" refers to an animal that:

• Has DNA from another organism spliced into its genome

• Has undergone DNA modification

• Has unique genes for its species

Tags

NGSS.HS-LS3-2

Gel electrophoresis sorts DNA based on:

• fragment length

• fragement sequence

During Gel electrophoresis, which substance acts like a filter?

• Gel

• Electricity

• Saline solution

In which ways can genetic engineering can improve crops

• Make them pest or drought resistant

• Make them more nutritious

• Make them larger

• All answers are correct

Tags

NGSS.MS-LS3-1

A circular piece of DNA, found in bacteria, is called:

• A plasmid

• mRNA

• Ribosome

• Nucleotide