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which of the following has the greatest effect on the rate of chemical cycling in an ecosystem?
a. the ecosystem's rate of primary productionb. the production efficeiency of the ecosystem's consumersc. the rate of decoposition in the ecosystemd. the trophic effeciency of the ecosysteme. the location of the nutrient resovoirs in the ecosystem
Two treu breeding white strans of a plant were mated and the Ftwo progeny were all white. When the F1plants were allowed to self fertilize, 179 white flowered and 41 purple flowered F1 plants grew.
The brown and scarlet mutations assort independently. If fruit flies that are heterozygous for both of these mutations are intercrossed, what sorts of progeny will they create, and in what proportions? Describe how you got the answer.
Explain the epidemiological attributes of this episode. In which special circumstances can cross-sectional surveys be utilized to test the hypotheses? In your answer explain briefly the characteristics of the cross-sectional study.
What is the name of the protein whose gene has been mutated in Ducheme muscular dystrophy.
Evaluate the sizes of the different digestive organs of an earthworm. Which organ is the largest? How does its size make it well suited for its function.
The availability of recombinant DNA technologies, automated instruments, and bioinformatic tools make identification of genes and genotypes much faster and cost effective as compared to using the century-old methods of classical genetics. Nowadays..
What limits NPP in terrestrial ecosystems? a. Temperature b. Water c. Nutrients d. All of the above e. None of the above.
When performing the Kirby-Bauer disk diffusion technique what do the microcolonies in the zone of inhibition represent?
Several black guinea pigs of the same genotype were mated and they produced 29 black and 9 white offspring. What would you predict the genotypes of the parents to be?
Belding's ground squirrels live in colonies. One of the advantages of living in a colony is that predation is decreased because individual squirrels will give alarm calls when a predator approaches the colony. Explain why this behavior of giving a..
What genetic information can be obtained by a Punnet Square? What genetic information cannot be determined?
c. Which antibiotic(s), if any, will cells be resistant to ifthey have obtained a plasmid containing inserted foreign DNA? d. How would you distinguish recombinant and non-recombinant plasmids by agarose gel electrophoresis.
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