Oral Path

genes that are located at the same level or locus in the 2 chromosomes of a pair and that determine the same functions or characteristics

Organic compound containing the amino group NH₂; they are the main component of proteins

nonsex chromosomes, which are identical for men and women

condensed cnromatin of the inactiviated X chromosome, which is found at the periphery of the nucleus of cells in women

In genetics a heterozyguous individual who is clinically normal but who can transmit a recessive trait or characteristic; also, a person who is homozygous for an autosomal-dominant condition with low penetrance

Constricted portion of the chromosome that divides the short arms from the long arms

Either two vertical halves of a chromosome that are joined at the centromere

general term used to refer to the material (deoxyrobonucleic acid DNA) that forms the chromosomes

vertical sequence of three bases in DNA that codes for an amino acid

blood relationship; in genetics the term is generally used to describe a mating or marriage between close relatives

A substance composed of a double chain of polynucleotides; both chains coiled around a central axis form a double helix; it is the basic genetic code or template for amino acid formation

having two sets of chromosomes; the normal constitution of somatic cells

in genetics a trait or characteristic that is manifested when it is carried by only one of a pair of homologous chromosomes

degree of clinical manifestation of a trait or characteristic

appearance of the face

spermatozoon or ovum

having more that one inheritance pattern

cell with a single set of chromosomes; a gamete is this

individual with two different genes at the allele loci

having identical genes at the allele loci

abnormally diminished secretion of sweat

presence of less than the normal amount of hair

photomicrographic representation of a person's chromosomal constitution arranged according to the Denver classification

position occupied by a gene on a chromosome

two-step cellular division of the original germ cells; which reduces the chromosomes from 4nDNA to 1nDNA

phase of cellular division in which the chromosomes are lined up evenly along the equatorial plane of the cell and in which they are most visible

cytoplasmic organelles that have their own DNA in a circular chromosome

unique DNA that is maternally inherited

way in which somatic cells divide so that the two daughter cells recieve that same number of identical chromosomes

permanent change in the arrangement of genetic material

process of formation of femal germ cells (ova)

egg; mature feminine germ cell

frequency with which a heritable trait is exhibited by idividuals carrying the gene or genes that determine that trait

en

physical, biochemical, and physiologic makeup of an individual; genotype is the genetic composition, and phenotype is its observable appearance

trait or characteristic that shows clinically when a double-gene dose (homozygous) exists in autosomic chromosomes or a single-gene dose exists in males if the trait is X linked

single strands of polynucleotides found in all cells; different types of RNA have different functions in the production of proteins by the cell

cytoplasmic organelles in which proteins are formed on the basis of the genetic code provided by RNA

process of formation of spermatozoa (sperm)

mature male germ cell

set of signs or symptoms (or both) occurring together

portion of a chromosome attached to another chromosome

pair of chromosomes with an identical extra chromosome