4.6.1.4 DNA and the genome

Question 1

Describe the structure of DNA.

Answer 1

• Double-stranded helix held together by complementary base pairs

Question 2

Define a genome.

Answer 2

• The complete set of genes or genetic material present in a cell or organism

Question 3

What is the genetic material in the nucleus of a cell composed of?

Answer 3

• The genetic material in the nucleus of a cell is composed of a chemical called DNA

Question 4

What is DNA made up of?

Answer 4

• DNA is a polymer made up of two strands forming a double helix

Question 5

Where’s the DNA contained?

Answer 5

• DNA is contained in structures called chromosomes

Question 6

What is the genome of an organism?

Answer 6

• The genome of an organism is their entire genetic material of that organism

Question 7

How will the human genome have importance for medicine in the future?

Answer 7

• The whole human genome has now been studied and this will have a great importance for medicine in the future

Question 8

Discuss the importance of understanding the human genome.

Answer 8

• Search for genes linked to different types of disease
• Understanding and treatment of inherited disorders
• Use in training human migration patterns from the past