Selective Breeding in Agriculture

Selective breeding involves choosing parents with specific traits to produce offspring with desirable characteristics. Humans have used this method for thousands of years to improve crop yields and livestock, such as cows for milk production. By selecting and breeding individuals with favorable traits, farmers can enhance the desired qualities in plants and animals. The process involves selecting the best producers and allowing only them to reproduce, gradually improving the entire herd or crop over generations.

What is the primary goal of selective breeding?

• To create new species

• To enhance desired traits in offspring

• To eliminate all undesirable traits

• To increase genetic diversity

Which of the following is an example of a plant developed through selective breeding?

• Tomato

• Potato

• Broccoli

• Carrot

Which of the following is NOT a result of selective breeding in plants?

• Increased crop yield

• Development of new plant varieties

• Creation of entirely new species

• Improved resistance to pests

Why have farmers been selectively breeding cows for thousands of years?

• To improve milk and meat production

• To increase their lifespan

• To change their color

• To make them faster

What is the first step in the process of breeding cows for higher milk production?

• Selecting cows with the most meat

• Choosing cows that produce the most milk

• Feeding cows a special diet

• Breeding cows with any available bull

How do farmers ensure that the offspring of cows continue to produce high milk yields?

• By using genetic engineering

• By allowing only high milk-producing offspring to reproduce

• By crossbreeding with other species

• By feeding them more

What is the ultimate goal of repeating the selective breeding process in cows?

• To create a herd with uniform color

• To develop cows that produce a large amount of milk

• To make cows resistant to diseases

• To increase the cows' speed

What characteristic is primarily selected for in cows to improve milk production?

• Size of the cow

• Speed of growth

• Color of the cow

• Milk yield