[DOC] [TLE] DNA, genes and chromosomes  University of Leicester [PAR] The gene is the basic physical and functional unit of heredity. ... A human being 
has 20,000 to 25,000 genes located on 46 chromosomes (23 pairs). ... The 
nucleus of each cell in our bodies contains approximately 1.8 metres of DNA in 
total, ... These relatively small circular DNA molecules usually contain genes that 
are not... [DOC] [TLE] Biological Basis of Heredity: Basic Cell Structures [PAR] Basic Cell Structures ... All plants and animals are composed of microscopic cells
, which are the smallest basic ... cells. These were the earliest kinds of cells to 
appear on Earth. ... that follows is for the eukaryotic type cells of which humans 
are mostly composed. .... Every person has about 20,000-25,000 genes in each 
cell. [DOC] [TLE] What is a gene? - Genetics Home Reference [PAR] A gene is the basic physical and functional unit of heredity. ... The Human 
Genome Project has estimated that humans have between 20,000 and 25,000 
genes. [DOC] [TLE] Genetics 101  The Hereditary Material of Life | NIH MedlinePlus ... [PAR] There are about 30,000 genes in each cell of the human body. Together, these 
genes make up the blueprint for the human body and how it works. A person's ... 
Nearly every cell in a person's body has the same DNA. Most DNA is located in 
the ... A gene is the basic physical and functional unit of heredity. Genes, which 
are... [DOC] [TLE] What Is a Gene? - KidsHealth [PAR] Why does one kid have green eyes while another kid's eyes are brown? It's all ... 
Many of these things are passed from one generation to the next in a family by 
genes. What Is a Gene? Each cell in the human body contains about 25,000 to 
35,000 genes. Genes ... Cells are the very small units that make up all living 
things. [DOC] [TLE] The Colton Society Inc. - Understanding Disorders - South Daytona, FL [PAR] Nearly every cell in a person's body has the same DNA. Most DNA is located in ... 
A GENE is the basic physical and functional unit of heredity. Genes, which are... [DOC] [TLE] gene | heredity | Britannica.com [PAR] Nov 12, 2015 ... Unit of hereditary information that occupies a fixed position (locus) on a ... For 
example, whereas the human genome contains an estimated 20,000 to 25,000 
genes, the ... (RNA has the base uracil [U] instead of thymine, so A and U form ... 
the genes within the cells of organisms are inactive much or even all... [DOC] [TLE] Genetic Structure, Packaging and Function - nchpeg [PAR] ... units of heredity, carry genetic information from one generation of cells to the 
next ... Human beings have about 20,000  25,000 genes. ... There about 3.2 
billion base pairs in each DNA molecule. ... DNA remains in the cell's nucleus, 
but the translation of the genetic ... These alternate versions of a gene are called 
alleles. [DOC] [TLE] DNA by jackhoning honing on Prezi [PAR] Aug 6, 2015 ... Nearly every cell in a person's body has the same DNA. ... A gene is the basic 
physical and functional unit of heredity. Genes ... The Human Genome Project 
has estimated that humans have between 20,000 and 25,000 genes. ... These 
are the units of DNA function, called genes, each of which guides the... [DOC] [TLE] 1 - Genetic Alliance [PAR] Almost every human trait and disease has a genetic component, ... Cells are the 
fundamental working units of every living system. ... the basic physical and 
functional units of heredity. Genes are specific sequences ... The human genome 
is estimated to contain 20,000-25,000 genes. ... Each affected person usually has 
one. [DOC] [TLE] Genetics Overview - Science Behind the Genographic Project ... [PAR] Inside each cell, genes make up a blueprint for protein production that 
determines ... Chromosomes carry hereditary, genetic information in long strings 
of DNA called genes. Humans have 22 numbered pairs of chromosomes and a 
single pair of sex ... When these mutations are passed down through the 
generations they

Question: In a human being, each cell has about 25,000 of these basic units of heredity
Answer: genes