Lesson 4 and 5

The building block of nucleic acids are nucleotides.  Nucleotides are composed of a sugar, a phosphate group, and a _________________ base.

• oxygen
• hydrogen
• nitrogen
• carbon

The backbone of a DNA molecule is made from a 5 carbon ______________ and a _______________ group.

• lipid, carbon

• sugar, phosphate

• nitrogen, oxygen

• nitrogen, sulfur

What are the four nitrogen bases?

• adenine, thymine, guanine, cytosine
• adenine, lysine, prolene, guanine
• arganine, cytosine, lysine, purine
• lysine, cytosine, lucine, guanine

The shape of the DNA molecule is a double __________________?

• "S"
• helix
• rope
• curve

The sugar in DNA is ?

• sucrose
• glucose
• deoxyribose
• fructose

What kind of information does DNA carry?

• genetic
• nuclear
• cell structure
• it doesn't carry any info

DNA makes a copy of itself in a process called ________________________________?

• translation

• replication

• transcription

• division

What are the building blocks for DNA?

• carbohydrates
• nucleotides
• lipids
• proteins

What base pairs with adenine?

• phosphate

• guanine

• cytosine

• thymine

What base pairs with guanine?

• cytosine

• guanine

• thymine

• sugar