Technology & Agriculture

Human Biotechnology

In this lesson, you will review how DNA technology is used to modify an organism's DNA.

Modern genetics uses DNA technology.

• Changes in DNA can change an organism.

• Random changes in DNA may introduce new traits into an organism.

• Over time, certain traits may become more common in one group of organisms as they interact with the environment and each other.

Selective Breeding

• The process of selecting and breeding parent organisms to pass on particular traits to the offspring.

• Downfall- leads to lack of genetic variation

• Example- crops, agriculture

Multiple Choice

Selective breeding is...

• a process to create an organism with desired traits from parents with those desired traits

• natural method of producing offspring with desired traits

• creating a new species

• making organisms reproduce during times of stress

Multiple Choice

An example of selective breeding is

• a dog breeder mating 2 dogs to make more dogs

• a farmer grows bees to pollinate the plants on his farm

• a person pollinates 2 white rose plants to only create white roses

Multiple Choice

One problem with selective breeding is

• creating a new species

• gene variety is lost

• extinction of a species

Genetic engineering

• Used to introduce new traits into an organism

• Produce medicines and other products

• Identify individuals

• Clone genes as well as organisms

• Sequence the genome of an organism

Multiple Choice

Genetic engineering has been used to produce

• medicines.
• food animals.
• improved crops.
• all of these.

Multiple Choice

What are genetically modified (GM) organisms and GM foods?

• Foods or organisms with better taste

• Foods or organisms grown in the USA, only

• Foods or organisms with DNA modified in a way that doesn't occur naturally

• Food and organisms that have been injected with hormones

Open Ended

What are some risks and benefits associated with using genetic engineering in food crops?

NOMADS

people who move from place to place as a group to find food for themselves.

8000bc to 2000bc

• During this period early humans began to develop tools. As they started to migrate across the globe this helped them survive in different areas

Multiple Choice

Why is it important to focus on the future of farming?

• Because the population will only continue to grow and we need to make sure we can quickly give people good quality food

• Because farmers need money

• Because people will start protesting if this is not the case

• Because we are focusing on technology, so it's only fair that we focus on farming too

Multiple Choice

How can we maximize the amount of crops that are produced?

• By investing in smart machines, sensors, and other tech

• By not minimizing our computer tabs

• By planting in a lot of fields in case a field fails

• By planting fertilizer instead of crops

Multiple Select

Why does technology help in agriculture?

• It helps us do things faster

• It helps us collect data on crops

• It helps us replace human labor

• It helps to reduce human impact on baking

Multiple Choice

another word for farming

• agriculture
• technology
• specialization
• shrine

Multiple Choice

Industrial/modern commercial agriculture refers to

• large scale agriculture using machines to produce large amounts of crops for sale

• large scale agriculture using machines to produce small crops for individual families

• small scale, intensive agriculture

• small scale, extensive agriculture

Multiple Choice

A positive impact of industrial/commercial agriculture is

• a decrease in amount of crops produced

• an increase in amount of crops produced

• increased water and air pollution

• decrease in the amount of machinery used

Multiple Choice

A negative impact of industrial/commercial agriculture is

• a decrease in amount of crops produced

• an increase in amount of crops produced

• increased water and air pollution

• decrease in the amount of machinery used

Multiple Choice

Which words correctly complete the following trend: "In the US the size of farms has ______ while the number of farmers has _______."

• increased; increased

• decreased; decreased

• increased; decreased

• decreased; increased

Multiple Choice

Extensive agriculture involves

• lots of land and labor

• little land and labor

• lots of land; less labor

• lots of labor; less land

Multiple Choice

All of the following developments have INCREASED amount of crops produced in the last 100 years EXCEPT

• mechanization or new machines

• new technology (GMOs, chemical pesticides and fertilizers)

• the Green Revolution

• an increase in the number of farmers in the world