Chapter 5 : Genetics

Question 1

What is DNA made up of?

Answer 1

Basic units called nucleotides.

Question 2

Each nucleotide consists of?

Answer 2

Three parts

Question 3

A Nucleus contains?

Answer 3

Chromosomes

Question 4

What is a Chromosome?

Answer 4

A thread-like structure that is made up of nucleic acid and protein. It is long and coiled and is located inside the nucleus.

Question 5

Each Chromosome contains?

Answer 5

One long DNA molecule

Question 6

Each Nucleotides consists of?

Answer 6

Three parts

Question 7

What are the three parts of a Nucleotide?

Answer 7

• A sugar called deoxyribose
• A nitrogenous base
• A phosphate group

Question 8

What is a Gene?

Answer 8

A basic unit of heredity that determines an individual’s traits

Question 9

What is the function of a Gene?

Answer 9

It controls the inherited characteristics in organisms

Question 10

Example of Inherited Characteristics

Answer 10

• The fur colour in cats
• The ability to roll our tongue
• The shape of pea pods

Question 11

What is DNA made up of (Part 2)

Answer 11

Two chains of polynucleotides that are paired and twisted into a structure that is called the double helix.

Question 12

In a single DNA molecule, there are?

Answer 12

Thousands of genes

Question 13

Genes are arranged as?

Answer 13

Segments on the DNA along the chromosomes