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In the movie, Lost in Space, spider-like creatures attacked members of the Robinson family as they explored an abandoned spaceship. Maureen (the mom) scans the creatures and reports that the spiders are silicon-based life-forms.
(1) If silicon-based life exists, would it be able to consume carbon-based life, digest it, and use the products as nutrients? Why or why not?
(2) Why do potential space explorers need to be able to produce all of the food that they will need, regardless of whether life is found elsewhere?
Which extinct species should be the best candidate to serve as the out-group for clade whose common ancestor occurs at position 2.
The organism may well potentially be a crab, a shrimp, a barnacle, or a bivalve. The presence of which structures would allow for the most certain identification of the organism.
If the horticulturist breeding gardenias succeeds in having a single plant with a particularly advantageous set of traits, which would be her most probable and efficient route to establishing a line of such plants.
Did any of substances travel against their concentration gradient? Describe why or why not. Using your results from Chart 2, what was the fastest rate of facilitated diffusion recorded? _______________.
State how the amonio acids sequence you obtained from the gene fragment for botana curus compares with the sequence for other three species.
A storm brings two formerly separated populations of beetles together. They look very similar. Under the biological species concept, which would show that the two populations are different species.
A gas takes up a volume of 17 liters, has a pressure of 2.3 atm, and a temperature of 299 K. If I raise the temperature to 350 K and lower the pressure to 1140 mm Hg, what is the new volume of the gas.
How will you find out the transcription factor binding sites in the whole genome. You have isolated a novel transcription factor. How would you decide the genes regulated by transcription factor in the whole genome.
Both endocrine and nervous systems are major regulating systems of the body; though, nervous system has been compared to an airmail delivery system and endocrine system to the pony express. In brief explain this comparison.
What series of nucleotide pairs in a Drosophila gene will encode the amino acid sequence met-trp-phe-trp-met (reading from the amino terminus to the carboxyl terminus).
What effect might this have on cell lineages during development. Describe the physical changes that would occur in SIM medium if you inoculated an organism that was negative for hydrogen sulfide but positive for indole production and motility.
Using examples, discuss types of genetic mutations that result in faulty proteins and disease,
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