Test 3 Flashcards
An Austrian monk who founded the science of heredity in 1866
Gregor Mendal
The science of heredity or the study of the transmission of traits from one generation to another
Genetics
A form of a gene; a pair of partner genes for a given trait
Allele
A gene that expresses itself in the presence of its recessive allele
Dominant
A gene that cannot express itself in the presence of the dominant allele
Recessive
Refers to the actual genetic make up of an individual
Genotype
Refers to the physical appearance of an individual
Phenotype
A condition in which both genes of an allelic pair are alike
Homozygous
Condition in which the genes of an allelic pair are different
Heterozygous
A gene located on a somatic or body chromosome
Autosomal gene
A test of significance to determine the goodness of it of data to a working hypothesis
Chi-square test
A type of inheritance in which one gene expresses itself in the presence of its allele
Law of dominance
Members of an allelic pair separate during the formation of gametes
Law of segregation
Genes of each allelic pair separate independently of other pairs of alleles that are located on non-homologous chromosomes during the formation of gametes
Law of independent assortment
Inheritance in which one gene expresses itself in the presence of its allele
Simple dominance
Inheritance in which one gene of an allelic pair is not dominant over the and the resulting offspring are intermediate in characteristics.
Incomplete dominance
Inheritance in which the gene for a given character exist in the form of three or more alleles
Multiple alleles
Inheritance in which the gene for a given trait are located on the X or Y chromosome
Sex linked inheritance
Inheritance in which the expression of a gene or genes is affected by the presence or absence of sex hormones
Sex influenced Inheritance
A small, reddish brown fly that is attracted to fruit or vegetables that has been studied extensively, and many aspects of human genetic patterns were determined from these studies
Fruit fly
Tissues composed of flat, elongated cells that cover the surface or form a single layer of cells around the central core or cylinder called the stele
Dermal tissues
Tissues comprising most of the stem or route for support and storage including collenchyma, parenchyma, and sclerenchyma
Ground tissues
Specialized cells for support that are irregularly thickened at the corner
Collenchyma
Spherical cells in the stem and roots for storage
Parenchyma
Specialist cells for support with uniformly thickened secondary walls for support and strength
Sclerenchyma
Plant tissues specialized for the transport of water, nutrients, carbohydrates, minerals, and other substances
Vascular tissues
Vascular tissues is specialized for the transport of carbohydrates upward and downward; stained green on prepared slides
Phloem
A vascular tissue specialized for the transport of water upward only; stained red on prepared slides
Xylem