Biology: The Dynamic Science, Volume 2 by Peter J. Russell, Paul E. Hertz, Beverly McMillan

By Peter J. Russell, Paul E. Hertz, Beverly McMillan

Biology: The Dynamic technological know-how is the 1st basic biology textual content with an experimental method that connects historic learn, fresh advances completed with molecular instruments, and a glimpse of the long run throughout the eyes of famous researchers engaged on key unanswered questions of the day. This finished framework does not come on the cost of crucial techniques. quite, it offers a significant, real looking context for studying the entire center fabric that scholars needs to grasp of their first direction. Written "from the floor up" with minimum jargon and crisp, user-friendly motives of the present nation of organic wisdom, the textual content helps scholars as they study the clinical process-and the way to imagine as scientists do.

Show description

Read Online or Download Biology: The Dynamic Science, Volume 2 PDF

Best biology & life sciences books

The Poison Paradox: Chemicals As Friends and Foes

On a daily basis we're surrounded by way of chemical compounds which are in all probability damaging. a few of these we take deliberately within the type of medicines; a few we take unknowingly throughout the meals we devour, and the surroundings round us. John Timbrell explores what makes specific chemical substances damaging, what their results are, and the way we will be able to try out for them.

Lectures on Developmental Physiology

"1 Jind released lectures insipid. " ALEXANDER VON HUMBOLDT ta LOUIS AGASSIZ, January 15, 1840 many stuff converse opposed to the book of lectures. The impact of the spoken note is especially varied from that of the written note. Repeated recapitulations, which aid the listener less than­ stand, are pointless, and the overtones of speech disappear in print.

Additional info for Biology: The Dynamic Science, Volume 2

Example text

5. No mutations are occurring. The population is closed to migration from other populations. The population is infinite in size. All genotypes in the population survive and reproduce equally well. Individuals in the population mate randomly with respect to genotypes. If the conditions of the model are met, the allele frequencies of the population will never change, and the genotype frequencies will stop changing after one generation. In short, under these restrictive conditions, microevolution will not occur (see Focus on Research).

And the application of molecular techniques to the study of evolutionary biology has greatly enhanced our knowledge. 14 Observational Research hypothesis: The genetic instructions coding for proteins are more similar in closely related species than they are in more distantly related species. How Differences in Amino Acid Sequences among Species Reflect Their Evolutionary Relationships prediction: The amino acid sequences for a particular protein will be more similar in closely related species than in more distantly related species.

Populations Often Contain Substantial Genetic Variation How much genetic variation actually exists within populations? 7) to identify biochemical polymorphisms in diverse organisms. This technique separates two or more forms of a given protein if they differ significantly in shape, mass, or net electrical charge. The identification of a protein polymorphism allows researchers to infer genetic variation at the locus coding for that protein. 6 Experimental Research question: Do observed differences in activity level among house mice have a genetic basis?

Download PDF sample

Rated 4.15 of 5 – based on 29 votes