Heredity
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The passing of genetic traits from parent to offspring
Heredity
The trait observed in the first generation when parents that have different traits are bred
Dominant Trait
a trait that reappears in the second generation after disappearing in the first generation when parents with different traits are bred
Recessive Trait
One set of instructions for an inherited trait
Genes
One of the alternative forms of a gene that governs a characteristic such as hair color
Alleles
an organism’s appearance or other detectable characteristic
Phenotype
The entire genetic makeup of an organism also the combination for one or more specific traits
Genotype
the likelihood that a possible future event will occur in any given instance of the event
Probability
chromosomes that have the same sequence of genes and the same structure
Homologous chromosomes
a process in cell division during which the number of chromosomes decreases to half the original number by two divisions of the nucleus which results of the production of sex cells
Meiosis
one of the pair of chromosomes that determine the sex of the induvidual
Sex chromosomes
a diagram that shows the occurrence of a genetic trait in several generations of a family
Pedigree
deoxyribonucleic acid a molecule that is present in all living cells and that contains the information that determines the traits that a living thing inherits and needs to live
DNA
in a nucleic-acid chain a subnit that consists of a suger a phosphate and a nitrogenous
Nucleotide
ribonucleic acid a molecule that is present in all living cells and that plays a role in in protein production
RNA
a change in the nucleotide-base sequence of a gene or DNA molecule
Mutations