Biological Sciences - Population Genetics

What is a gene pool?

A gene pool is the complete set of genetic information within a population, including all the alleles for every gene present. It represents the diversity of genes and genetic variation available for potential inheritance.

What is the calculation for allele frequencies?

Allele frequencies are calculated by dividing the number of copies of a specific allele by the total number of alleles for that gene in the population.

What is a gene pool?

A gene pool is the complete set of genetic information within a population, including all the alleles for every gene present. It represents the diversity of genes and genetic variation available for potential inheritance.

What is the calculation for allele frequencies?

Allele frequencies are calculated by dividing the number of copies of a specific allele by the total number of alleles for that gene in the population.

What is the calculation for genotype frequencies?

Genotype frequencies are calculated by dividing the number of individuals with a specific genotype by the total number of individuals in the population.

For allele frequency, how would you calculate?

You would divide the number of copies of a specific allele by the total number of alleles for that gene in the population.

For genotype frequency, how would you calculate?

You would divide the number of individuals with a specific genotype by the total number of individuals in the population.

What is a genotype?

A genotype is the genetic constitution of an individual, representing the specific alleles inherited from both parents for a particular gene or set of genes.

What is a phenotype?

A phenotype is the observable physical or biochemical characteristics of an organism, determined by both genetic makeup and environmental influences.

What is codominance?

Codominance is a genetic scenario in which both alleles in a heterozygote are fully expressed, resulting in offspring with a phenotype that is neither dominant nor recessive. This leads to a distinct expression of both traits.

What is homozygous recessive? Give an example…

A homozygous recessive genotype consists of two identical recessive alleles for a particular gene, resulting in the expression of the recessive phenotype. An example is having two alleles for blue eyes (bb) in humans.

What is homozygous dominant? Give an example…

A genotype with two identical dominant alleles for a particular gene, for example, AA.

What does heterozygous mean?

A genotype consisting of two different alleles for a particular gene, such as Aa, resulting in a mixed phenotype.

What is an allele and where do they come from?

An allele is a variant form of a gene that arises by mutation and is found at the same place on a chromosome. Alleles contribute to the genetic diversity within a population.

What is a locus?

A specific, fixed position on a chromosome where a particular gene or genetic marker is located.

Hardy Weinberg Equilibrium

A principle in population genetics that describes the genetic variation of a population under ideal conditions, where allele frequencies remain constant from generation to generation in the absence of evolutionary influences.