DNA Structure and Function Lesson

Multiple Choice

How many base pairs (bp) are in the human genome?

• 1 billion bp
• 4 billion bp
• 3 billion bp
• 3.5 billion bp

Multiple Choice

The genomes of two unrelated humans are ___% the same.

• 90.0
• 0.1%
• 78%
• 99.9%

Multiple Choice

Which best describes the impact that the Human Genome Project (HGP) has had on society?

• It has helped scientists determine that certain genes can cause diseases 
• It has led to discrimination against genetically flawed individuals
• It has led to the appearance of new diseases
• It has cost society billions of dollars without any major benefits

Multiple Choice

The main goal of the Human Genome Project (HGP) was to:

• Identify the unique parts of each person's DNA.
• Identify genes responsible for human diseases.
• Identify genes responsible for human behavior.
• Determine the entire sequence of human DNA.

Multiple Choice

What year was the Human Genome Project (HGP) started?

• 1990
• 1999
• 2003
• 1987

Multiple Choice

What is a genome?

• The complete haploid amount of genetic material present in a cell or organism
• A garden ornament 
• The sum of all human material.
• A totally unique set of genetic material not shared with anything else

Multiple Choice

What makes up the rungs (steps) of a DNA ladder?

• sugars & phosphates

• nitrogen bases

• sugars

• genes & chromosomes

Multiple Choice

What makes up the SIDES of a DNA ladder?

• sugars & phosphates

• nitrogen bases

• sugars

• genes & chromosomes

Multiple Choice

Which of the following best describes a DNA molecule?

• double helix

• made of amino acids

• contains ribose

• contains Uracil

Multiple Choice

Nitrogenous bases are joined by which type of bond?

• polar bonds

• covalent bonds

• ionic bonds

• hydrogen bonds

Multiple Choice

 

Name this structure

• double helix

• twisted ladder

• nucleotide

• hydrogen bond

Multiple Choice

Cytosine always pairs with

• Adenine

• Thymine

• Uracil

• Guanine

Multiple Choice

Adenine bonds with ______________.

• Cytosine

• Guanine

• Thymine

• Uracil

Multiple Choice

What is the significance of the sequence (order) of the Nitrogen Bases in DNA?

• The order of the Nitrogen Bases determines the number of chromosomes present in an organism.

• The order of the Nitrogen Bases determines the traits that an organism will possess (have).

• The order of the Nitrogen Bases determines the gender of an organism.

• The order of the Nitrogen Bases determines whether an organism is abiotic biotic.

Multiple Choice

 

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

Multiple Choice

Challenge- How many TOTAL NUCLEOTIDES are there in the DNA molecule pictured?

• 5

• 10

• 2

• 20

Multiple Choice

According to Chargaff's rule, Cytosine always pair with

• Adenine
• Uracil
• Thymine
• Gaunine