DNA Introduction

What is the viscous material found inside the outer cell wall, where the nucleus and other tiny parts of the cell float?

• Cytoplasm

• Ribosomes

• Lysosomes

• Mitochondria

How many chromosomes do humans typically have in each cell?

• 23

• 40

• 46

• 78

From whom do you inherit your chromosomes?

• Only your mother

• Only your father

• Both your mother and father

• Your grandparents

What does the number of chromosomes in an organism indicate about its complexity?

• A higher number of chromosomes indicates greater complexity

• A lower number of chromosomes indicates less complexity

• The number of chromosomes is not an indicator of an organism's complexity

• The number of chromosomes is directly proportional to the organism's size

The infant and the mouse have a similar white patch on the stomach and forhead. Caused by a mutation in the same g_ _ _

What is each chromosome primarily composed of?

• A single continuous strand of DNA

• Multiple separate DNA strands

• Proteins and lipids

• RNA molecules

How long is the DNA strand when it is unwound, before being packed onto a cell nucleus.

• Approximately 10 centimeters
• Roughly 5 centimeters
• Approximately 2 meters
• About 1 meter (3 feet)