Chapter 13 - Biology Honors Prentice Hall Textbook by...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Biology Honors Prentice Hall Textbook by Miller/Levine Chapter 13 pg. 337 #1-34 and pg. 339 #1-10 10/ 30 Period 2 1. C 2. A 3. C 4. C 5. A 6. B 7. C 8. C 9. A 10. A 11. Hybridization is when individuals with different traits are crossed. Inbreeding is when individuals with similar traits are crossed. These are both considered selective breeding because the breeder modifies the natural breeding process to create a certain type of organism. 12. Breeders cause mutations, which are inheritable changes in DNA. Breeders can increase the rate of mutation by using radiation and chemicals. Many mutations are harmful. However with luck, breeders can produce useful mutations. 13. A polyploidy occurs when plants who have been developed using mutants fail to separate and extra sets of chromosomes result. In plants, the new species that result are larger and strong that their other diploid relatives. 14. In both reprogramming a computer game and genetic engineering, you must take the program out of the computer, read it, make changes in it, and then put the modified code back into the game. 15. Hundreds of restriction enzymes cut DNA at a specific sequence of nucleotides. 16. Gel electrophoresis is a mixture of DNA fragments places at one end of a porous gel, and an electric voltage is applied to the gel. When the power is turned on, DNA molecules, which are negatively charged, move toward the positive end of the gel. The smaller the DNA fragment, the faster and farther it moves. Gel electrophoresis can be used to compare the genomes, or gene composition, of different organisms or different individuals. 17. Recombinant DNA is DNA produced by combining DNA from different sources. 18. A polymer chain reaction allows biologists to make many copies of a gene. At one end of a piece of DNA that a biologist wants to copy, he or she adds a short piece of DNA that is complementary to a portion of the sequence. At the other end, the biologist adds another short piece of complementary DNA. 19. Cell transformation is when a cell takes in DNA from outside the cell. The external DNA becomes a component of the cell’s DNA. Bacteria cells, plant cells, and animal cells are all cells that can be transformed. 20. A genetic marker is a gene that makes it possible to distinguish bacteria that carry the
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 01/02/2012 for the course BIO 101 taught by Professor Dr.chan during the Fall '11 term at Marine Biological Laboratory.

Page1 / 4

Chapter 13 - Biology Honors Prentice Hall Textbook by...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online