Inheritance, Variation and Evolution Flashcards Flashcards

A structure found in the nucleus of a cell, made of DNA, which carries genetic information.

A short section of DNA that codes for a specific protein and determines a particular characteristic.

Different forms of the same gene, which can be or recessive.

An allele that is expressed if present, even if only one copy is inherited.

An allele that only expressed if two copies are inherited (one from each parent).

Having two identical alleles a particular gene (e.g., AA or aa).

Having two different alleles for a particular gene (e., Aa).

The genetic makeup of an organism, describing the alleles present (e.g., AA, Aa, or).

The physical characteristics or traits of an organism, determined by its genotype and environment.

A change in the DNA sequence that lead to variation and sometimes new traits.

The process by which organisms with advantageous survive and reproduce, passing on their genes.

The process of choosing organisms with desirable traits to breed and produce offspring with those traits.

The deliberate modification of an organism's genome using biotechnology to introduce new traits.

The gradual change in the inherited characteristics of a population over time through natural selection.

The permanent loss of all members of a species, often due to environmental changes or competition.