What is a person's observable characteristics:
1. A dominant gene
2. The genotype
3. An allele
4. The phenotype
1. A dominant gene: A dominant gene is a gene that controls the expression of a particular trait, and its effects are observable in the phenotype even if only one copy of the gene is present.
2. The genotype: The genotype refers to the genetic makeup or combination of alleles present in an individual. It represents the genetic information inherited from both parents, including dominant and recessive alleles.
3. An allele: An allele is an alternative form of a gene. Alleles occur in pairs, with one allele coming from each parent. They determine variations in specific traits, and can be dominant or recessive.
4. The phenotype: The phenotype is the observable physical or biochemical characteristics of an individual, resulting from the interaction between the genotype and the environment. It includes traits such as eye color, hair type, height, and other visible or measurable attributes.
1. A dominant gene: A dominant gene refers to a gene that will always be expressed when it is present in an organism's genotype. It overrides the effect of a recessive gene, meaning that if an individual inherits a dominant gene from one parent, the trait associated with that gene will be observable in the person's phenotype.
2. The genotype: The genotype is the set of genetic instructions or genetic makeup of an individual, which encompasses all the genes and alleles that an organism inherits from its parents. It represents the specific combinations of genes that an individual carries, including both dominant and recessive alleles.
3. An allele: An allele is a variant or alternative form of a gene that occupies a specific position on a chromosome. Alleles can exist in multiple forms and determine the variations in traits observed among individuals. For example, in humans, the gene for eye color has different alleles, such as brown, green, or blue, and an individual may inherit a specific allele for eye color from their parents.
4. The phenotype: The phenotype refers to the observable or physical characteristics of an individual, resulting from the interaction between their genetic makeup (genotype) and the environment. It includes traits such as hair color, eye color, height, and other physical features. The phenotype can be influenced by both dominant and recessive genes, as well as environmental factors.