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a)The population growth rate due to the difference in births and deaths in the U.S. is estimated to be 0.6% per year (r =0.006). Given a 2001 population size of about 285 million, calculate the projected population size in 2025 and 2050.
b) Immigration from legal sources (660,000 in 1998) and illegal sources (estimated to be about equal to legal immigration) minus emigration (usually less than 200,000 per year) adds about 1 million people per year to the U.S. population. The total population growth rate from all sources in thus about 0.9% per year (and immigration is thus responsible for about 1/3 of this growth). Given this rate, calculate the projected U.S. population size in 2025 and 2050.
list and briefly discuss the obstacles that must be overcome to produce and aids vaccine. the key is brief but
Design an experiment in which you will test the effect of an acidic fluid on enzymatic activity. Recall: enzymes are proteins! To complete this project, it may be useful for you to first review the Scientific Method Tutorial, the OLI module about ..
The citric acid cycle enzyme, fumarase, catalyzes the conversion of fumarate to malate:
The normal functioning of any one of these genes is sufficient to convert the colorless compound to the red compound. The abnormal functioning of these genes is designated by a, b, c, respectively.
Describe how protein hormones versus steroid hormones play a role in transducting signals that can affect gene transcription?
differences between arteries and veins
Write out the genotypes of the male and female parents and their F1 male and female offspring.
Which DNA sequence will encode for at least five amino acids? Change three different bases separately (either by addition or deletion) and write the corresponding amino acid sequences that result from these modifications.
1. in 3-5 paragraphs reflect on the history of abortion laws and the recent challenges to these laws in the united
What is the purpose of polymerase chain reaction?
Chickens have ZZ-ZW sex determination. The bar-feathered phenotype in chickens results form a Z-linked allele that is dominant over the allele for nonbar feathers. If a barred female is crossed with a non-barred male, what will be the phenotypes o..
how many possible fragments can be presented via MHC class I and/or II from these specific examples and in general for all oligoglycosyceramides? Explain your answer.
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