Exam 15: Feeding a Hungry World

The best way to reduce soil erosion is by the practice of

This plant has leaves and fruits that are edible.Fruits are achenes and are high in lysine and methionine and the fatty acid linoleic acid.This plant is

A mass of actively dividing cells in tissue culture can develop into a plant if:

India,has lost 75% of the 30000 land races of rice it once had.What led to the loss of all of those land races of rice?

What is germplasm?

Identify the Andean crop with edible seeds and leaves that was known by the Incas as the "mother grain."

One benefit of developing edible vaccines through genetic engineering is that there will be no need for _______ of the vaccine.

In 1999 a group of scientists speculated that Bt corn might be a threat to the environment by harming populations of ______ butterflies found around cornfields.

Approximately 93% of the U.S.soybean crop has been genetically engineered for:

All of the following species are matched correctly with their common name except one.Choose the exception.

What is Panicum sonorum?

What process is undermining the development of disease-resistant varieties of plants?

The first genetically engineered crop that was marketed in the U.S.was a _______ modified for longer shelf life.

Three factors that have encouraged the wide scale practice of monoculture are mechanization improved crop varieties,and the use of chemical fertilizers and pesticides.

The small circular bits of DNA in bacteria that have been used as vectors to introduce genes in genetic engineering are called:

Why did early farmers select grain plants with nonshattering heads to cultivate?

Fifty percent of cotton grown in the United States is of ______ varieties.

Germplasm is the loss of valuable genetic heritage due to the extinction of wild and traditional varieties.

Maize differs from the ancient ancestor from which it was evolved by

The biggest loss of crop plants is to