Maternal Child Nursing Care Ch. 6
Maternal Child Nursing Care Ch. 6
Maternal Child Nursing Care Ch. 6
-
- 1 / 85
-
Cartes-fiches
Twins that are formed from two zygotes are also called...
Fraternal Twins
Twins that are formed from one fertilized ovum that then divides
Monozygotic
Twins that are formed from one fertilized ovum are also called....
Identical Twins
The hereditary material carried in the nucleus of each somatic cell; it determines an individual's characteristics
DNA
The process by which germ cells divide, producing gametes that each contain 23 chromosomes
Meiosis
Failure of a pair of chromosomes to seperate
Nondisjunction
Basic physical units of inheritacne that are passed from parents to offspring and contain the information needed to specify traits
Genes
Abnormality in chromosome number; the numeric deviation is not an exact multiple of the haploid number of chromosomes
Aneuploidy
Cells that contain half of the genetic material of a normal somatic cell
Haploid
Union of a normal gamete with a gamete containing an extra chromosome resultin in a cell with 47 chromosomes
Trisomy
X, Y
Sex chromosomes
Genes at corresponding loci on homologous chromosomes that code for different forms or variations of the same trait
mutation
Process whereby body cells replicate to yield two cells with the same genetic makeup as the parent cell
Mitosis
Term that denotes the correct umber of chromosomes
Euploidy
The complete set of genetic inheritance in the nucleus of each human cell
Human genome
Process by which genetic material is transferred from one chromsome to another different chromosome
Translocation
Threadlike packages of genes and other DNA in the nucleus of a cell
Chromsome
Abnormality in chromosome number in which the deviation is an exact multiple of the haploid number of chromosomes
Polyploidy
Somatic cell containing the full number of 46 chromosomes
Diploid
Union of a normal gamete with a gamete missing a chromosome, resulting in a cell with only 45 chromosomes
Monosomy
A spontaneous and permanent change in normal gene structure
mutation
A mixture of cells, some with the normal number of chromosomes and others either missing a chromosome or containing an extra chromosome
mosaicism
Environmental substance or exposure that results in functional or structural disability of the embryo/fetus.
Teratogen
Analysis of human DNA, RNA, chromosomes, orproteins to detect abnormalities related to an inherited condition
Genetic Testing
Direct examination of the DNA and RNA that make up a gene
Direct or molecular testing
Examination of the markers that are co-inherited with a gene that causes a genetic condition
Linkage analysis
Examination of the protein products of genes
Biochemical testing
Examination of chromosomes
Cytogenetic testing
Genetic testing that is used to clarify the genetic status of asymptomatic family members
Predictive testing
Genetic testing used to detect a disorder that is certain to appear if the defective gene is present and the individual lives long enough
Presymptomatic testing
Genetic testing used to detect susceptibility to a disorder if the defective gene is present
Predispositional testing
Test used to identify individuals who have a gene mutation for a genetic condition but do not show symptoms of the condition because it is a condition that is inherited in an autosomal recessive form
Carrier screening
Use of genetic information to individiualize drug therapy
Pharmacogenomics
Therapy used to correct defective genes that are responsible for disease development; the most common technique is to insert a normal gene in a location within the genome to replace a gene that is non-functional
Gene (Transfer) Therapy
Matched chromosomes
Homologous
Tern that denotes a indivdual with two copies of the same allele for a given trait
Homozygous
If two alelles are different then a person is said to be ____ for the trait
heterozygous
The genetic makeup of an individual; an individual's entire genetic makeup or all the genes taht the perosn can pass on to future generations
Genotype
Observable expression of an individual's genetic makeup
Phenotype
Pictorial analysis of the number, form, and size of an individual's chromsomes
Karyotype