heredity vocabulary Flashcards
(14 cards)
What is heredity
passing on of physical or mental characteristics genetically from one generation to another.
what is the dominant Trait
a trait that will appear in the offspring if one of the parents contributes it.
what is the recessive trait
Recessive traits can be carried in a person’s genes without appearing in that person
what are genes
a unit of heredity that is transferred from a parent to offspring and is held to determine some characteristic of the offspring.
what are alleles
one of two or more alternative forms of a gene that arise by mutation and are found at the same place on a chromosome.
what is phenotype
the set of observable characteristics of an individual resulting from the interaction of its genotype with the environment.
what is genotype
the genetic constitution of an individual organism.
what is probability
a probable or the most probable event.
what is meiosis
a type of cell division that results in four daughter cells each with half the number of chromosomes of the parent cell
what are sex chromosomes
a chromosome involved with determining the gender of an organism,
what is a pedigree
the record of descent of an animal, showing it to be purebred
what is DNA
the fundamental and distinctive characteristics or qualities of someone or something-cant change
what do nucleotides do
Nucleotides form the basic structural unit of nucleic acids such as DNA.
what are mutations
a distinct form resulting from a change in the structure of a gene
