B003 Spring Mid Term

The enzyme that unzips the DNA to prepare for replication

• helicase
• replicase
• polymerase
• synthase

When a cell divides, what do we call the 2 new cells?

• mother cells
• father cells
• daughter cells
• son cells

Which 2 molecules form the sides (backbone) of the DNA ladder?

• deoxyribose sugar and adenine
• deoxyribose sugar and a hydrogen bond
• deoxyribose sugar and the nucleus
• deoxyribose sugar and phosphate

Fruit fly body cells have 8 chromosomes. After mitosis, you would expect a resulting fruit fly daughter cell to have ...

• 16 chromosomes.
• 46 chromosomes.
• 8 chromosomes.
• 4 chromosomes.

What type of cell is not yet specialized and can be turned into any type of cell?

• skin cell
• blood cell
• nerve cell
• stem cell

A process in which DNA has the unique ability to make an exact copy of itself.

• Replication
• Translation
• Transcription

What are the three components of a nucleotide?

• sugar, hydrogen, nitrogen base
• sugar, oxygen, nitrogen base
• sugar, phosphate, nitrogen base
• sugar, phosphate, protein

What is the job of internal or external regulators?

• To decide if a person is hungry
• To help a person to digest their food
• To determine when a cell needs to divide or to stop dividing
• To let a person know when they need to get out of the cold

Name the phase:

• Anaphase
• Telophase
• Metaphase
• Prophase

If the message never gets through for a cell to stop dividing and it just keeps dividing over and over again, what can form?

• tumor
• freckle
• goosebump
• scab