Structures & Mechanisms of Genetics

What are the nucleotides made of?

• Sugar, Phosphate, nitrogen base
• Phosphate, Adenine, nitrogen base
• Thymine, Adenine, Cytomine
• Phosphate, Nitrogen, Adenine

Adenine bonds with ______________.

• Guanine
• Thymine
• Cytosine
• Adenine

The two strands of nitrogenous bases in DNA are joined by which type of bond?

• polar bonds
• ionic bonds
• covalent bonds
• hydrogen bonds

Tags

NGSS.HS-LS1-1

The shape of the DNA molecule is a double __________________?

• "S"
• helix
• rope
• curve

Rosalind Franklin's "photo 51" was critical in helping Watson and Crick to discover what?

• The double helix structure of DNA
• X-Ray crystalography was a technology worth looking in to. 
• That stealing is a great way to get ahead in life
• That there could possibly be life on other planets. 

Tags

NGSS.HS-LS1-1

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

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

Which DNA strand is complementary to the one shown above?

• 
• 
• 
• 

The enzyme that unzips the DNA to prepare for replication

• helicase
• replicase
• polymerase
• synthase

DNA replication results in two DNA molecules,

• each one with two original strands
• each one with two new strands
• each one with one new strand and one original strand
• one with two new strands and the other with two original strands

Tags

NGSS.HS-LS3-2

Based on the diagram, the enzyme (represented in gray) is most likely...

• DNA polymerase
• DNA Ligase
• Nuclease
• Helicase