Embryo transfer is a type of biotechnology. It is used in the breeding of cattle, sheep, and goats. It allows an embryo to be transferred from the natural mother to a different female. This allows the natural mother to produce many more offspring than she otherwise could. What is the most likely reason that a particular female would be selected to be the natural mother that produces many embryos to be transferred to other females?

Bacillus thuringiensis (Bt) is a soil bacterium that is toxic to certain insects. Genes from this bacterium have been inserted into cotton to make Bt cotton. Farmers that use Bt cotton would most likely use less of which of the following?

Some varieties of soybeans have been genetically modified. They have been changed so that they do not die when a particular herbicide is sprayed on a field. How would this genetic modification improve the soybean crop?

A transgenic organism is one that contains genes from a different species. Research scientists create transgenic organisms, but do not usually decide whether or not they can be released into nature. Those decisions are usually made by government officials. Which statement BEST explains why government officials have this responsibility?

Golden rice is a transgenic plant that produces rice with high levels of vitamin A. The rice would help people improve the nutrition in their diets. However, some people are concerned about the effects the transgenic rice might have on native plants. Which words best characterize these concerns?

Scientists have been able to insert genes from a spider into the genome of a domestic goat. When the goat matures, it produces milk that contains a protein found in spider webs. This protein can then be extracted and used to make strong but lightweight materials for bulletproof vests, automobiles, and aircraft. The change does not cause the goat any pain, but some people think that it is not right to add genes from the genome of one animal to another. Which word best describes this concern?

By inserting a gene from a firefly into a plant, scientists have made a plant that glows in the dark. This practice raises some concerns about transgenic organisms. Which of the following is an ethical concern?

Which statement correctly describes a way that bacteria are used in biotechnology?

A farmer who lives in a cold northern climate would like to plant a genetically modified crop. She is interested in producing a high-nutrition crop. She also wants to reduce her use of pesticides. Which of the following combinations of traits listed in the table would BEST meet the farmer’s needs?

Which of the foods was modified to increase its nutritional content?

A farmer in India is trying to decide which type of cotton to plant. He is examining the traits of six varieties of genetically engineered cotton. These traits are shown in the table. The upcoming growing season is predicted to start later than usual, due to a colder than normal spring. The growing season is predicted to be drier than normal. Which two varieties are likely to give the farmer the best results, given the predicted weather conditions?

Which diseases are transmitted to humans by vectors?

The bacteria B. anthracis causes the deadly disease anthrax. Here is one way humans can contract the disease:

1.The bacteria form tough endospores that rest in soil indefinitely.

2.Grazing animals, such as sheep, inhale endospores from the soil through the air.

3.Once inside the sheep, the spores reactivate and cause infection.

4.Meat from infected sheep passes spores to humans and causes the humans to become infected.

What is the vector for anthrax when humans are infected in this scenario?

What is the distinction between an epidemic & pandemic?

In 1918, an outbreak of influenza infected 500,000 people all over the world. Tens of millions of those infected died. In 1994, an outbreak of pneumonic plague spread quickly through the city of Surat in India, killing 52 people. Which statement best describes the two events?

The discovery of penicillin helped in the

What reason best explains why more people get colds in colder temperatures?

Diseases that can be transmitted between organisms are

Which characteristic of viruses prevents them from being used as evidence to support cell theory? 

Which is one possible human benefit from biotechnology research?

How has genetic engineering helped farming?

How can biotechnology help farmers overcome sudden changes in the global climate?

There is a sudden increases in disease A and disease B. The diagram shows the different geographic areas where diseases A and B are found. Which is the correct statement?

A dairy cow typically produces 6-7 gallons of milk per day. A scientists extracts the gene responsible for producing growth hormone in cattle and inserts it into bacteria for cloning. The hormone obtained from the bacterium is then purified and inserted into dairy cows in the form of an injection. This increases the milk productivity by 10% in the cows. Which statement describes how the scientists increases milk production?

In 2021, over 730 biotechnology were based in North Caroline, employing more than 66,000 people. This represents an increase of 25% compared to 2010. Which statement best describes a future impact based on this information?

Aspergillosis is a fungal infection caused by Aspergillus, a type of spore-forming mold. The spores are found both indoors and outdoors. Aspergillus can grow on decaying plant materials outside, materials with dust, stored grains, or some food inside. Individuals with weak immune systems or long-standing lung problems are easily affected by this mold. The infection causes allergy0like symptoms in the infected people. What can be done to prevent aspergillosis the best?

Heartworm is a disease caused by mosquitos that carry Dirofilaria parasites infecting dogs that the mosquitos bite. Which action will best reduce heartworm infection?

A group of researchers create a strain of corn with a gene that naturally produces pesticides. A recent study shows that pollen from the genetically modified corn can land on milkweed plants. The genetically modified corn's pollen is toxic to the caterpillars that feed on milkweed. What is a likely ethnical issue with planting the modified corn?

Rabbits in a region of Australia were exposed to a virus. The virus spread to the rabbits beyond the region and more than 90% of infected rabbits in Australia died from the disease. When the disease reinfected rabbit populations a year later in Australia, fewer rabbits died after exposure. Which statement describes the disease affecting the rabbits?

Using biotechnology, a substance is developed and then baked into bread to slow the growth of mold. Which statement best describes how the substance can benefit society?

The table lists some basic characteristics of viruses. A student claims that viruses are infectious agents. Which characteristic supports the student's claim?

Which characteristic of bacteria allows them to spread a disease in a human's body?

CRISPR-Cas9 is a technology that uses a protein called Cas9. Cas9 allows scientists to separate DNA then change the genetics of an organism. Which is a likely application of this technology in medicine?