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7th Grade Unit 1 Ch. 4: Patterns of Heredity

Horizontales
Cells that contain half the usual number of chromosomes that are normal for a human being.
Different forms of the same gene.
The likelihood or chance of a specific outcome in relation to the total number of possible outcomes.
Ribinucleic acid- which uses the DNA's sequence of bases to link amino acids into chains that form proteins.
Describes the actual characteristics that can be observed.
An allele that is expressed in the phenotype even if only one copy is present in the genotype.
When each parent contributes a cell that contains genetic information.
A process that takes place when a sperm and an egg combine to form one new cell.
A segment of DNA at a specific location on a chromosome that influences hereditary characteristics.
Verticales
The process that takes place when a sperm and an egg combine to form one new cell.
The name for alleles an organism has.
Illustrates how two parent's alleles might combine in offspring.
A gamete that forms in the male reproductive organs.
An allele that is expressed in the phenotype only when two copies of it are present on the homologs.
A process in which before cell division, its DNA is copied.
A gamete that forms in the female reproductive organs.
A special type of cell division that produces haploid cells.