biology Answers & Homework Solutions

81) You are a engineer in a shipping company and you have identified some corrosion on one of your ocean freighters that is occurring below the water line, around rivets that have some kind of green slime covering them. What’s happening and what can you do to mitigate the problem? ...

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1). What is the difference between top-down and bottom-up nanofabrication strategies? Which strategy is more efficient (i.e. generating less material waste)? 2). DNA-induced nanoparticle assembly: Assume we attach two batches of nanoparticles (A, B) with different single stranded DNA sequences. The DNA strands attached to nanoparticle A...

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Why is the thymidine kinase gene used when making a mouse kockout? (select all that apply) Select one or more: As a way to select against random integration events. To metabolize ganciclovir To select for transgenic ES cells. To identify embryonic stem cells as different from somatic cells....

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Why does a cell need a cytoplasmic membrane (3 functions)?.....

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Why do the first mice identified in a knockout experiment have black and white patchy fur? Select one: Poor grooming. The knockout process is inefficient and only some cells in the blastocyst have the gene knocked out. The black and white colored fur alleles exhibit incomplete dominance in a heterozygous...

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Why do plant cells have cell walls?...

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Which one of the following statements comparing the human and mouse genomes is false? A. Human and mouse have about the same number of genes. B. The human genome shares 99% of its genes with the mouse. C. Conservation of genes...

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Which one of the following mechanisms is least likely to generate heritable variation within a population? A -epigenetic modifications of the genome B -developmental plasticity C -recombination D -mutation Assuming that all other factors are...

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Which of the following type(s) of chromosomal changes can produce a dicentric chromosome? Select one or more: Trisomy 21. A pericentric inversion. A paracentric inversion. A point mutation. Monosomy X (Turner's Syndrome). A reciprocal translocation. A duplication of a small region of the chromosome, (interstitial duplication) A deletion of a...

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Which of the following type(s) of chromosomal changes can produce a dicentric chromosome? Select one or more: Trisomy 21. A pericentric inversion. A paracentric inversion. A point mutation. Monosomy X (Turner's Syndrome). A reciprocal translocation. A duplication of a small region of the chromosome, (interstitial duplication) A deletion of a...

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What are cytokines and what are the principles of immune response to nanomaterials?...

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w many thi o metaphase led rygene divide by whk me somatie derived from a innM It) ion teleph prophase A) metaphase that are in a mondividinw are in which phase A) 8) DNA is replicated at this time of the cell cyde M The complete complement of an organism's...

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A 5.0 (mu) m strand of DNA carries charge +e per nm of length. Treating it as a charged line, what's the electric field strength 25 nm from the DNA, not near either end?...

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the tRNA sequence of each of these molecules. Mutational analysis two of these variable regions were analyzed (regions highlighted of in figure 6) and assayed for ribosome in purple and yellow the binding (see page 10). Based on the data below, determine role that each of these variable regions play...

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The Drop box for each option is as follows for each answer: In yeast, the genes in the pathway that breaks down galactose are regulated in a coordinated way. Match the components of this system with their function. Gal-specific transcription factor that binds to the enhancer and...

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24) Describe how a perceptron models a neuron in the brain....

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I did not understant what does he mean by "users and non-users"?? the topis is greenhouse effect...... please help its urgent Demonstrate Deep understanding of the immediate and long- awareness of term issues involved on users and non-users global effects Demonstrate Deep understanding of applied economic factors...

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I am in biology 1, experiment 11. "Assay and Regulation of Gene Expression by Transcription Factors; Induction of -galactosidase" What was the purpose of adding the lactose analog ONPG in today’s lab experiment? Why did we use ONPG instead of IPTG in today’s experiment? Both IPTG and...

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