Genetics Quiz

What is the study of heredity called?

• Biology

• Genetics

• Chemistry

• Physics

Genetics deals with similarities and differences among what?

• Planets

• Individuals

• Elements

• Machines

Which of the following is a goal of using genetics in livestock?

• To create animals with less appealing characteristics

• To develop animals with increased productivity

• To reduce the number of animal species

• To make animals more aggressive

What is a financial benefit of applying genetics in the livestock industry?

• Increase in animal size

• Save money

• Increase in animal lifespan

• Reduce animal population

Why is it important to create animals with more appealing characteristics?

• To increase the number of animals

• To fit consumer preferences

• To reduce animal care costs

• To eliminate animal diseases

What is the backbone of a chromosome?

• DNA

• RNA

• Proteins

• Lipids

How many pairs of chromosomes do swine have?

• 19 pairs

• 30 pairs

• 27 pairs

• 32 pairs

How many pairs of chromosomes do chickens have?

• 39 pairs

• 30 pairs

• 27 pairs

• 32 pairs

What is the primary location of chromosomes in a cell?

• Nucleus

• Cytoplasm

• Cell membrane

• Mitochondria

What is a dominant gene?

• A gene that is masked by another gene

• A gene that masks another gene

• A gene that is always recessive

• A gene that is not expressed