genotype. combination of letters that represent an organism’s genetic makeup. Punnett Squares.
What is the letter combination of alleles called?
Within an individual organism, the specific combination of alleles for a gene is known as the genotype of the organism, and (as mentioned above) the physical trait associated with that genotype is called the phenotype of the organism.
What is the allele combination?
Allele Combination. MGI Glossary. Definition. A designation of the specific alleles present on the two homologous chromosomes for all relevant loci of a mouse (i.e., all allele pairs of a genotype). An allele combination can be composed of one or more allele pairs.
What is allele concept?
An allele is a variant form of a gene. Some genes have a variety of different forms, which are located at the same position, or genetic locus, on a chromosome. … Alleles contribute to the organism’s phenotype, which is the outward appearance of the organism. Some alleles are dominant or recessive.
What is the best definition of allele?
Allele, also called allelomorph, any one of two or more genes that may occur alternatively at a given site (locus) on a chromosome. Alleles may occur in pairs, or there may be multiple alleles affecting the expression (phenotype) of a particular trait.
Which is the best example of an allele?
An example of an allele is the gene that determines hair color. Either of a pair of genes located at the same position on both members of a pair of chromosomes and conveying characters that are inherited in accordance with Mendelian law. Any of the possible forms in which a gene for a specific trait can occur.
What are the three types of alleles?
There are three different alleles, known as IA, IB, and i. The IA and IB alleles are co-dominant, and the i allele is recessive.