DNA Discovery Structure and Function

What is the twisted ladder shape of DNA called?

• double helix

• single helix

• stringy ladder

• ladder

What are the four bases that make up the genetic code in DNA?

• adenine, thymine, guanine, and cytosine

• phosphates, sugar, base

• nitrogen, deoxyribose, base

• deoxyribose, nucleotide, base

What actually makes up the genetic code?

• the order of the bases

• the order of the phosphates

• the order of the sugars

• the order of the phoenix

Tags

NGSS.HS-LS1-1

In DNA, adenine pairs with

• thymine

• guanine

• cytosine

• adenine

One of the functions of DNA is to serve as information, such as providing information to build proteins. Label the parts of the diagram that shows this process!

d

e

f

g

c

b

a

mRNA

polypeptide chain

translation

transcription

ribosome

nucleus

DNA

Tags

NGSS.HS-LS1-1

Label the parts of the DNA strand:

• Hydrogen Bond

• Phosphate Group

• Deoxyribose Sugar

• Nitrogen Base

Tags

NGSS.HS-LS1-1

Move the nitrogenous bases to their correct position in the red circles.

d

c

b

a

A

C

T

G

Tags

LS.10.a

In your groups, label the parts of the DNA structure.

e

f

g

h

d

c

b

a

Nucleotide

Deoxyribose

Nitrogenous Base

Chromosome

DNA

Hydrogen Bonds

Gene

Phosphate Group

Tags

NGSS.HS-LS1-1

Click on the image.

Based on the image, match the following:

• W

• sugar-phosphate backbone

• Z

• thymine

• Y

• cytosine

• X

• hydrogen bonds

Tags

NGSS.HS-LS1-1

Move the nucleotide parts to their spot

a

b

c

ribose (sugar

phosphate

base