In years past a brown eyed child seemed like an unlikely outcome from two blue eyed parents, but as we learn more about genetics we learn that eye color isn't as simple as blue + blue = blue. Let's learn more about the genetics of eye color. Caucasian children are usually born with unpigmented, blue eyes. As the child develops, the cells begin ...
Visual, interactive sample size calculator ideal for planning online experiments and A/B tests. Need A/B sample sizes on your iPhone or iPad? Download A/B Buddy today. Question: How many subjects are needed for an A/B test?
A test cross is a cross to a homozygous individual (e.g., Aa x aa), usually done to determine the genotype of an unknown individual. A back cross is a cross to an individual with the same genotype as one of the parents. QUIZ: What are these?
An empirical evaluation of genetic distance statistics using microsatellite data from bear (Ursidae) populations. Genetics 147:1943-1957 About the Input Format Hit the Create Dataset button to pop up an input datasheet. Don't forget to fill in the number of loci. Duplicate individual names will automatically be suffixed with "-2", "-3" and so on.
Allele Frequency Calculator. In population genetics, allele frequency is used to reflect the genetic diversity of a population species. It is also referred to as gene frequency. It is a measure of relative frequency of a gene on a genetic locus in a population. The frequency is expressed in terms of percentage.
SCADACore's Checksum Calculator can be used to verify the checksum algorithm used by field devices. It accepts ASCII or Hex to produce a checksum.
Now a male heterozygote fly is test crossed with a double recessive female. The test-cross offspring were gray long and black vestigial in the ratio of 1 : 1. In this case it is seen that two linked dominant characters gray and long remain together in the P 1 flies, F 1 hybrid flies and 50% of the test cross offspring’s.
Test Cross When you look at someone who has a dominant trait, you cannot tell if they are homozygous or heterozygous for that trait. (i.e. if someone has brown eyes and brown is the dominant trait – they could be BB (homozygous) or Bb (Heterozygous). Mendel always started his crosses with a purebred homozygous (BB or bb) in the P1 generation.