Micropipette Techniques and Gel Loading

Miss Linton guides her AP Bio class through a lab on genetic engineering tools, focusing on micropipette usage and gel electrophoresis. She explains the correct techniques for using micropipettes, transferring fluids, and setting up and running gel electrophoresis. The tutorial emphasizes precision and accuracy in lab procedures, with practical tips for avoiding common mistakes.

What is the primary focus of the first lab in the AP Biology class?

• Studying plant cells

• Reviewing genetic engineering tools

• Learning about animal behavior

• Exploring chemical reactions

When using a micropipette, what should you do to ensure accurate measurement?

• Push the plunger to the second stop immediately

• Set the dial to any random number

• Ignore the decimal settings

• Push the plunger to the first stop and release slowly

What is a common mistake students make when using micropipettes?

• Pushing the plunger too slowly

• Holding the micropipette upside down

• Using the wrong type of solution

• Flooring the plunger at the beginning

Why is it important to use a fresh tip on a micropipette?

• To prevent contamination

• To save time

• To increase the volume of liquid

• To make the micropipette lighter

What tool can be used to ensure all drops go to the bottom of the tube?

• A magnifying glass

• A microcentrifuge

• A thermometer

• A ruler

What method is recommended for stability when loading solutions into gel wells?

• The lever method

• The balance method

• The crane method

• The tripod method

What should you do if you make a mistake during the lab?

• Start the entire lab over

• Inform the teacher for assistance

• Ignore it and continue

• Try to fix it yourself

How should dye solutions be loaded into the gel wells?

• In reverse order

• All at once

• One at a time, in sequence

• In random order

What factor affects the speed at which dyes move through the gel?

• The type of gel used

• The size and charge of the dye

• The color of the dye

• The temperature of the room

What should you observe to answer questions on the Google Form?

• The banding colors in the gel

• The time taken for the process

• The size of the wells

• The amount of solution used