College Biology: Biotechnology

What does adenine pair with in DNA?

• thymine
• cytosine
• guanine
• uracil

Which is the primary purpose of using restriction enzymes in gel elctrophoresis?

• It allows the strands of DNA to be cut into various lengths for testing
• It restricts the number of base pairs that can be tested in a sample
• It makes the testing simpler by moving the strands into the gel faster
• It charges the DNA strands

Pattern of DNA fragments obtained by examining a person’s unique sequence of DNA base pairs

• Chromosome
• DNA Probe
• DNA Fingerprint
• Electrophoresis

Most human cells have how many chromosomes 

• 23
• 24
• 46
• 48

How do scientists cut DNA into smaller strands?

• restriction enzymes
• scissors
• ligase
• agarose

Where is DNA found in the body?

• Cells nucleus
• Heart
• Cartilage
• Muscle

Tags

NGSS.MS-LS3-1

Based on these results whose blood was found in the blood stain at the crime scene?

• Bob
• Sue
• John
• Lisa

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

DNA cutting "scissors" are

• Bacteriophages
• Restriction Enzymes
• DNA Enzymes
• Plasmids

ALL the DNA in one cell of an organism

• Karyotype
• Mutation
• Pedigree
• Genome

Tags

NGSS.HS-LS1-1

Why do the fragments of DNA in gel electrophoresis travel away from the negative electrode?

• DNA is negatively charged
• DNA is positively charged
• the agarose gel in negatively charged
• the agarose gel is positively charged