heredity flash cards
Heredity
the passing of genetic traits from parent to offspring
dominant trait
the trait observed in the first generation when parents that have different traits ar bred.
recessive trait
a trait that reappears in the second generation after disappearing in the first generation when the parents with different traits are bred. isn’t
genes
one set of instructions for an inherited trait
allele
one of the Alternative forms of a gene that governs a characteristic such as hair color
phenotype
an organism’s appearance or other detectable characteristic
genotype
the entire genetic makeup of an organism also the combination of genes for one or more specific traits
probability
the likelihood that a possible future event will occur in any given instance of the event
mieosis
a process on a television during which the number of chromosomes decreases to have the original number by two divisions of the nucleus which results in the production of sex cells
sex chromosomes
one of the pair of chromosomes that determine the sex of an individual
Pedigree
a diagram that shows the occurrence of a genetic trait in several generations of a family
DNA
deoxyribonucleic acid a molecules at present of all living cells and that contains the information that determines the traits that living thing inherent and needs to live
Nucleotide
a nucleic acid chain subunit that consists of a sugar and a photosphate and a nitrogenous base
Mutations
a change in the nucleotide-base sequence of a gene or DNA molecule
RNA
ribonucleic acid a molecule that is a present in all living cells and that plays a role in protein production
