1. What do scientists use to “CUT” DNA? 

• Saw
• Restriction enzymes

• Scissors
• Knife

What technique can these cut DNA fragments (after they are cut) be separated out on?

• centrifugation
• paper chromatography
• spectrophotometry
• gel electrophoresis

1. How is the DNA separated out in gel electrophoresis?

• By smell and taste
• By size and charge

• By temperature and pressure
• By color and texture

In gel electrophoresis DNA moves from an area of what charge to an area of what charge?

• positive charge to neutral charge
• positive charge to negative charge
• negative charge to positive charge
• neutral charge to positive charge

When DNA separates by gel electrophoresis, larger fragments are where and smaller fragments are where of the gel?

• Larger fragments are near the bottom, and smaller fragments are near the top of the gel.

• Larger fragments are near the top, and smaller fragments are near the bottom of the gel.

• Larger fragments are evenly distributed, and smaller fragments are near the top of the gel.

• Larger fragments are near the top, and smaller fragments are evenly distributed on the gel.

When DNA separates by gel electrophoresis how does DNA charge come into play?

• DNA molecules are negatively charged

• DNA molecules are neutral

• DNA molecules have no charge

• DNA molecules are positively charged

1. What is selective breeding?

• Breeding organisms with undesirable traits to produce offspring with those same traits
• Breeding random organisms without considering their traits
• Breeding organisms with desirable traits to produce offspring with different traits
• Breeding specific organisms with desirable traits to produce offspring with those same traits

Tags

NGSS.MS-LS1-5

What are 3 species that have arisen/came from wild cabbage?

• broccoli, cauliflower, and kale
• carrot, potato, tomato
• apple, banana, orange
• lettuce, spinach, radish

Tags

NGSS.HS-LS4-2

NGSS.HS-LS4-4

1. A species that have arisen from wild cabbage with white flower that does NOT produce chlorophyll? 

• Broccoli
• Spinach
• Cauliflower
• Carrot

Tags

NGSS.HS-LS3-1

What is polyploidy?

• Genetic condition with incomplete set of chromosomes
• Genetic condition with alternating sets of chromosomes
• Genetic condition with only one set of chromosomes
• Genetic condition with more than two complete sets of chromosomes