Genetics: Year 10 Science

Mutation

________: A permanent alteration or change in the DNA sequence of a gene, which can result in different traits or characteristics.

Sex- linked

______: The inheritance of traits or genes that are located on the sex chromosomes (X or Y)

Hybrid

________: Refers to an organism that is the offspring of two parents with different genetic backgrounds or traits.

Phenotype

________: The observable physical or biochemical characteristics of an organism, which are determined by its genotype.

Codominance

________: A type of inheritance where both alleles are expressed and contribute to the phenotype, resulting in a combination or blending of traits.

Punnett Square

________: A diagram used to predict the possible genetic outcomes or combinations of alleles in offspring based on the genotypes of the parents.

Pure

________- bred: Refers to an organism that has two identical alleles for a particular trait and is produced by breeding individuals with the same or similar genetic backgrounds.

Allele

________: One of the possible versions or variants of a gene that determines a specific trait.

Inheritance

________: The passing on of traits or characteristics from parents to their offspring.

Trait

________: A specific characteristic or feature of an organism that can be inherited.

Genotype

________: The genetic makeup of an organism, represented by the combination of alleles it possesses.

Incomplete Dominance

________: A type of inheritance where neither allele is completely dominant over the other, resulting in an intermediate phenotype when both alleles are present.

Gene

________: A segment of DNA that carries the instructions for a specific trait or characteristic.

DNA

________: A molecule found in cells that contains the genetic instructions for the development and functioning of living organisms.

Homozygous

________: Having two identical alleles for a particular gene.

Heterozygous

______: Having two different alleles for a(n) particular gene.

Chromosome

________: A thread- like structure made up of DNA molecules that contain many genes. ________ are found in the nucleus of cells.