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In an experiment, you purify a cysteine-charged tRNA and chemically alter the amino acid attached to it converting it to alanine. You place this charged tRNA in a cell-free protein-synthesizing system with all of the other charged tRNAs, mRNA and other substances needed for thesynthesis of proteins. What, if anything, will be differentfrom the normal protein coded for by the mRNA in the mixture?
Also, how could the P53 protection mechanism negatively influence longevity?
Describe the various explanations (evolutionary, anatomical, etc.) for why pollinators are often very specific to the plants they pollinate.
What were the genotypes of Dudley's parents?
Check completed table correctly. A minus indicates that component or function is not present in the group and a plus indicates that it is.
You are interested in calculating the concordance for a trait of interest. You look at a total of 500 pairs of twins and find that of the 500 pairs, 125 pairs have ONE twin with the trait of interest and 50 pairs have BOTH twins with the trait of ..
Plasmids, which are associated with membrane proteins, depend on bacterial chromosomal DNA for replication. If the genome contains ~30,000 genes, about how many genes would be removed by a deletion of DNA that might be detected by karyotype analysis.
The fruit in summer squash may have different shapes. When two true breeding plants with disc-shaped fruit were crossed to true breeding plants with long fruit, all the F1 plants had disc fruits. In the F2 progeny there were 110 plants with disc-s..
Assuming that genotype essential to produce flat tails is homozygous recessive (such as bb) compute the frequency of the b allele in the squirrel population to two decimal places.
What would be your experimental approach?
Suppose that you perform the following monohybrid cross in dogs: Aa X Aa, in which the dominant A allele produces black coat color and the recessive a allele produces a white coat color.
An isolated piece of skeletal muscle tissue is genetically engineered so that gap junctions are expressed in muscle fibers. Create a plot of the length-tension relationship for this modified muscle tissue.
What does it mean to be an "multicellular organism"? The cellular slime mold Dictyostelium discoideum exists initially as a collection of separate cells moving over the forest floor.
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