Free Algebra Calculator and Solver. MathPapa Check Your Math Homework Online Algebra Calculator is a free step-by-step calculator and algebra solver.
It's an easy way to check your homework problems online. Click any of the examples below to see the calculator in action. Or read the Calculator Tutorial to learn more. Fractions Exponents Polynomials Adding Polynomials: x^2 + x + 2 + (2x^2 - 2x)Multiplying Polynomials: (x+1)(x+2)Squaring Polynomials: (x+3)^2Interactive Polynomials: (x+t)(x+u) Graphing Functions Parabola: y=2x^2+1Inequalities: y>3x+5; y<=xInteractive Line: y=tx+u Evaluating Expressions Evaluate x^2+2x for x=5: x^2+2x @ x=5Evaluate 2x^2+2y for x=5, y=3: 2x^2+2y for x=5, y=3Interactively evaluate 2x+4 for different values of x: 2x+4 @ t Solving Equations. Population and Evolutionary Genetics. One definition of a population is its genotypic frequencies.
This gives an indication of the genotypes which are the most or least prevalent in the population. The examples that will be used are for the blood type locus. Two alleles are possible, M or N, that can combine to give the following genotypes MM, MN, NN. The following data was collected from a human population. The population that we just analyzed has just two alleles at the blood type locus, and each individual will have some combination of these two alleles. F(M) = [(2 x 1787) + 3039]/12,258 = 0.5395 and the frequency for the N allele will be: f(N) = [(2 x 1303) + 3039]/12,258 = 0.4605. Population and Evolutionary Genetics. The goal of our previous discussions in this class has been to understand the inheritance of a single trait, a trait that may be controlled by one, a few, or many genes.
The goal of population genetics is different. Rather than studying the inheritance of a trait, population genetics attempts to describe how the frequency of the alleles which control the trait change over time. To study frequency changes, we analyze populations rather than individuals. Furthermore, because changes in gene frequencies are at the heart of evolution and speciation, population and evolutionary genetics are often studied together.
For a population of individuals to succeed over evolutionary time, it must contain genetic variability. This image illustrates a key concern of population genetics --- the measurement of variability. The cheetah is a species that suffers from low genetic variability. Copyright © 1997. Online Etymology Dictionary. A Model for 21st Century Learning. Hudson HSLT. School of the Future Online Learning Network. NYC Lab School for Collaborative Studies. The GLC NYC. The Beacon School, NYC. Frank McCourt High School. HS419 (02M419) Landmark High School - Homepage. High School of Art & Design. Lower Manhattan Arts Academy. Professional Performing Arts School Home Page.
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