Heredity Vocab Flashcards
the passing of genetic traits from parent to offspring
Heredity
the trait observed in the first generation when parents who have different traits are bred
Dominant Trait
a trait that is apparent only when two recessive alleles for the same characteristic
Recessive Trait
one set of instructions for an inheritedtrait
Genes
one of the alternative forms of a gene that governs a characteristic, such a hair color.
Alleles
an organism’s appearance or other detectable chaaracteristic
Phenotype
the entire genetic makeup of an organism; also the combination of genes for one or more specific traits.
Genotype
the likelihood the a possible future even 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 call division during which the number of chromosomes decreases to half of the original 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 the 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 the needs to live
DNA
in a nucleic-acid chain, a subunit that consists of a sugar, a phosphate, and a nitrogenous base.
Nucleotide
ribonucleic acid, a molecule that is present in all living cells and plays a role in protein production
RNA
