Exam 14: Plant Breeding and Propagation

Plant breeding is ________.

The man known as the "father of the green revolution" was

Methods to insert desirable genes into a target cell in the production of a transgenic plant includes the use a crown gall bacterium or ________.

Seeds to be sold for planting must produce vigorous and uniform plants. To insure their seeds meet these standards, commercial seed growers do all of the following EXCEPT

Approach grafting is used when two related plants tend not to form grafts very well by other means.

Mutations can be induced by chemicals.

Most modern crops are grown from ________ seeds, which are produced by cross-breeding inbred lines.

Outcrossing involves repeated self-pollination.

When a stock has a considerably greater diameter than that of a scion, cleft grafting is the most commonly employed grafting method.

The primary goals of plant-breeding programs are ________.

In the future, transformed plants may produce viruses that act as vaccines against viral diseases.

Cuttings can be made from stems, roots, or leaves.

The type of grafting best suited for saving a tree that has been girdled is ________. (Appendix 4)

Polyploidy is when flowering plants have more than two sets of chromosomes.

One advantage of genetic engineering over traditional plant breeding is the introduction of genes from very distantly related organisms.

One of the first changes in domesticated plants was probably ________.

A plasmid is a small circular DNA fragment.

Two common types of transgenic plants widely grown in North America have genes for ________ and/or ________ incorporated in their genome.

Many crops, such as wheat, rice and beans, are ________ and do not require a pollinating agent such as wind or animals.

People began to domesticate plants in the Near East approximately ________ years ago.