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PLTW Biomedical Science Unit 3 (1)
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PLTW Biomedical Science Unit 3 (1)
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PLTW Biomedical Science Unit 3Allele - ANS-Any of the alternative forms of a gene that may occur at a given locus.
Autosome - ANS-A chromosome that is not directly involved in determining sex, as opposed to
a sex chromosome
Chromosome - ANS-Any of the usually linear bodies in the cell nucleus that contain the genetic
material.
Dominant Trait - ANS-A genetic trait is considered dominant if it is expressed in a person who
has only one copy of the gene associated with the trait.
Gene - ANS-A discrete unit of hereditary information
Genetic Material - ANS-Molecules responsible for heredity and variation of organisms.
Genotype - ANS-All or part of the genetic constitution of an individual or group
Heredity - ANS-The transmission of traits from ancestor to descendant.
Homologous Chromosomes - ANS-Chromosomes having the same or allelic genes with genetic
loci usually arranged in the same order.
Karyotype - ANS-A display of the chromosome pairs of a cell arranged by size and shape.
Meiosis - ANS-The cellular process that results in the number of chromosomes in
gamete-producing cells being reduced to one half and that involves a reduction division in which
one of each pair of homologous chromosomes passes to each daughter cell.
Mitosis - ANS-A process that takes place in the nucleus of a dividing cell, involves a series of
steps, and results in the formation of two new nuclei each having the same number of
chromosomes as the parent nucleus.
Mutation - ANS-A rare change in the genetic material, ultimately creating genetic diversity.
Pedigree - ANS-A diagram of a family tree showing the occurrence of heritable characteristics in
parents and offspring over multiple generations.
Phenotype - ANS-The observable properties of an organism that are produced by the
interaction of the genotype and the environment.
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