H Disease & DNA Replication

Drag the correct labels to each section of the diagram for a nucleotide of DNA.

a

b

c

Deoxyribose

Nitrogenous Base

Phosphate

Which of the following units are repeatedly joined together to form a strand of DNA? (This is the MONOMER of DNA.) 

• amino acids
• nucleotides
• fatty acids
• polysaccharides

Why is DNA important?

• it is very small and very complicated
• it's in everything
• it serves as the blueprint for traits of all living things
• because we eat it every day for energy

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-1

What are the 4 nitrogenous bases in DNA?

• adenine, thymine, cytoplasm, and guanine
• adenine, thymine cytosine, and guanine
• adenine, thymine, cytosine, and uracil

• adenine, uracil, cytosine, and guanine

(a)   forms the sides (backbone) of the DNA ladder.

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

DNA is usually found in the _____ (organelle) of a cell.

In a molecule of double-stranded DNA, the amount of Adenine present is always equal to the amount of (a)   .

• cytosine
• guanine
• thymine
• uracil

Nitrogenous bases are joined together by what type of bond?

Replicate the following strand of DNA: 
AATCATGGA

The enzyme that unzips the DNA to prepare for replication is (a)   .

• helicase
• replicase
• polymerase
• synthase