Heredity Flashcards
the passing of genetic traits from parent to offspring
Heredity
the trait observed in the first generation when parents that have different traits are bed
Dominant trait
a trait that reappears in the second generation after disappearing in the first generation when parents with different traits are bed
Recessive trait
one set of instructions for an inherited trait
gene
one of the alternative forms of a gene that governs a characteristic such as hair color
allele
an organism appearance or other detectable characteristic
phenotype
the entire genetic makeup of an organism also the combination of genes for one or more specific traits
genotype
the likelihood that a possible future event will occur in ant given instance of the event
probability
a process in cell division during witch the number of chromosomes decreases to half the organial number by two divisions of the nucleus which results in the production of sex cells
meiosis
one of the pair of chromosomes that determine the sex of an individual
sex chromosomes
a diagram that shows the occurrence of a genetic trait in several generations of a family
pedigree
Deoxyribonucleic acid is a molecule that carries the genetic instructions used in the growth, development, functioning and reproduction of all known living organisms and many viruses.
DNA
a compound consisting of a nucleoside linked to a phosphate group. Nucleotides form the basic structural unit of nucleic acids such as DNA.
nucleotide
the changing of the structure of a gene, resulting in a variant form that may be transmitted to subsequent generations, caused by the alteration of single base units in DNA, or the deletion, insertion, or rearrangement of larger sections of genes or chromosomes
Mutations
