BCH190 The Way We Work With Life
Study Guide Quiz 04, 2006

1. The best evidence available indicates that life on earth started as single cells roughly


2. Since all of the genes that code for all of the proteins in an organism are present in every cell then


3. Enzymes are coded for by genes and are:


4. A ‘Southern blot’ is used for


5. Genes can be involved with controlling expression of other genes during development. Some of which, like the hox genes, code for transcription factors that regulate when other genes are expressed. These ‘master’ genes that control the expression of other genes code for:



6. The entire genomic sequences are now known for many species of bacteria, fungi, insects, plants and animals, including humans and chimpanzees. This vast amount of information has been published and is in the public domain. The genome databases aligned and the similarities and relations can be examined. Individual gene sequences can be searched to find striking similarities between species. These types of analyses have shown that humans are 98% similar in DNA sequence to the chimpanzee; 88% similar to mice and about 33% similar to the genes of a rice plant. This type of analysis is called:


7. What is pharmacogenomics?


8. A ‘Northern blot’ is used for

9. The flow of information in biological life on earth:


10. Energy flows from one chemical bond to another. Breaking covalent bonds in molecules results in:


11. A covalent bond


12. In cells, proteins can function as


13. Different proteins can be distinguished from each other by


14. Proteins are molecules made from sequences of a number of:


15. The energy flow through life on this planet occurs from:



16. The ‘cloning’ of plants was demonstrated by Steward in 1958 at Cornell Univ. showing that plants could be grown back from a single cell. This ability is called “totipotency” and like the more recent examples of animal cloning, demonstrates

17. The expression of gene is said to be ‘turned on’ when certain signals interact with the promoter of a gene and RNA is produced. Transcription is:

18. The expression of gene is said to be ‘turned on’ when certain signal interact with the promoter of a gene and RNA is produced. Translation of that code occurs in the cytoplasm and is:

19. A ‘Western blot’ is used for

20. The stage of protein making in which a messenger-RNA molecule is 'read' by a ribosome is called: