DNA Structure & Function

Multiple Choice

Which biomolecule make up DNA?

• Protein

• Lipids

• Carbohydrates

• Nucleic Acids

Multiple Choice

What is the function of DNA?

• To store and transmit genetic information.

• To provide energy for cellular processes.
• To act as a structural component of cells.
• To synthesize proteins directly.

Multiple Choice

The instructions that DNA carries make up the physical traits that an organism can have. What are some examples of traits?

• Favorite food, favorite color, and hobbies
• Seasons, days of the week, and months of the year
• Types of animals, types of plants, and weather patterns
• Eye color, height, leaf shape, and blood type.

Dropdown

DNA is a ​

Select answer

. The building blocks of DNA are ​

Select answer

Labelling

Label the three parts of a nucleotide.

Drag labels to their correct position on the image

Nitrogen base

Deoxyribose sugar

Phosphate Group

Multiple Choice

How many strands make up the shape of DNA?

• 1 strand
• 4 strands
• 3 strands
• 2 strands

Hotspot

The backbone of DNA consists of deoxyribose sugar and a phosphate group. Select the region that shows the DNA backbone.

Multiple Choice

Adenine (A) is always going to bind to -

• Cytosine (C)
• Uracil (U)
• Thymine (T)
• Guanine (G)

Multiple Choice

Cytosine (C) is always going to bind to -

• Uracil (U)
• Guanine (G)
• Thymine (T)
• Adenine (A)

Multiple Choice

Thymine (T) is always going to bind to -

• Uracil (U)
• Guanine (G)
• Thymine (T)
• Adenine (A)

Multiple Choice

Guanine (G) is always going to bind to -

• Uracil (U)
• Cytosine (C)

• Thymine (T)

• Adenine (A)

Multiple Choice

If a segment of DNA has the bases GGA. The complementary strand should be -

• CCA
• TTG
• CCT
• GGT

Multiple Choice

If a segment of DNA has the bases CTA. The complementary strand should be -

• GAT
• CTA
• GCA
• TAC

Hotspot

All living organisms contain DNA. The image shows a strand of DNA with its individual nucleotides. What part of the DNA is different between species?

Match

Match the following nitrogen bases with its complementary pair.

• Adenine (A)

• Thymine (T)

• Cytosine (C)

• Guanine (G)

Thymine (T)

Adenine (A)

Guanine (G)

Cytosine (C)

• Thymine (T)

• Adenine (A)

• Guanine (G)

• Cytosine (C)

Drag and Drop

Match the following nitrogen bases to the number of hydrogen bonds.

Adenine and Thymine -

Placeholder

Guanine and Cytosine -

Placeholder

Drag these tiles and drop them in the correct blank above

2 hydrogen bonds

3 hydrogen bonds

5 hydrogen bonds

Labelling

Using the labels, identify the parts of a DNA molecule.

Drag labels to their correct position on the image

Nucleotide

Deoxyribose

Hydrogen bond

Nitrogen Base

Base pair

Phosphate

Glue your notes in your notebook.