what is the difference between a gene, chromosome and DNA.?

Answer 1

in a nutshell....

a gene is just a small part of a chromosome, and a chromosome is just a small part of a person's DNA.

Answer 2

Gene Chromosome Dna

Answer 3

There is a difference, basically a gene resides on a chromosome and multiple chromosomes make up a strand of DNA.

Here are some more definition of the terms.

Gene:The fundamental physical and functional unit of heredity. A gene is an ordered sequence of nucleotides located in a particular position on a particular chromosome that encodes a specific functional product (ie, a protein or RNA molecule).

Chromosome:Components in a cell that contain genetic information. Each chromosome contains numerous genes. Chromosomes occur in pairs: one obtained from the mother; the other from the father. Chromosomes of different pairs are often visibly different from each other

DNA:The material inside the nucleus of cells that carries genetic information. The scientific name for DNA is deoxyribonucleic acid.

Answer 4

Compare your genome to a novel:
- DNA is the paper and the ink.
- The chromosomes are the "chapters". Humans have 46 chromosomes but they are pairwise identical, making 23 different kinds in females and 24 kinds in males.
- The genes are the phrases. Traditional genetics defines a gene as the recepee for distinct kind of protein, e.g. you have a haemoglobin gene, a insuline gene etc.

Note, however, that unlike the chapters of a novel that reflect some logical structure of the story, the chromosomes are quite arbitrary. For most genes it doesn't seem to matter much on which chromosome it's located.

Answer 5

Gene is the chemically complex unit which is assumed to be the carrier of specific physical characters from parents to offsprings.

Chromosome is one of the deeply staining, rod or loop sahped bodies into which the chromatin of the cell nucleus divides during mitosis, generally of a fixed number for any given species. It is also regard as the carrier of the genes or units of heredity.

DNA, or deoxyribonucleic acid, is the hereditary material in humans and almost all other organisms. Nearly every cell in a person’s body has the same DNA. Most DNA is located in the cell nucleus (where it is called nuclear DNA), but a small amount of DNA can also be found in the mitochondria (where it is called mitochondrial DNA or mtDNA).

The information in DNA is stored as a code made up of four chemical bases: adenine (A), guanine (G), cytosine (C), and thymine (T). Human DNA consists of about 3 billion bases, and more than 99 percent of those bases are the same in all people. The order, or sequence, of these bases determines the information available for building and maintaining an organism, similar to the way in which letters of the alphabet appear in a certain order to form words and sentences.

DNA bases pair up with each other, A with T and C with G, to form units called base pairs. Each base is also attached to a sugar molecule and a phosphate molecule. Together, a base, sugar, and phosphate are called a nucleotide. Nucleotides are arranged in two long strands that form a spiral called a double helix. The structure of the double helix is somewhat like a ladder, with the base pairs forming the ladder’s rungs and the sugar and phosphate molecules forming the vertical sidepieces of the ladder.

An important property of DNA is that it can replicate, or make copies of itself. Each strand of DNA in the double helix can serve as a pattern for duplicating the sequence of bases. This is critical when cells divide because each new cell needs to have an exact copy of the DNA present in the old cell.

Answer 6

DNA is the molecular code that codes for all proteins which make up life, a gene is a piece of dna that codes for one protein. A chromosome is a strand of DNA, this is where a number of genes are located, humans have 23 types of chromosomes and have two of each type

Answer 7

The difference between a gene, a chromosome and DNA is that DNA is the nucleic acid contained within chromosomes located in the nucleus of cells. In addition, genes are located on cells and they control the production of proteins.

Answer 8

Genes: The sequence of DNA. Alleles: partner (unit) of genes. DNA: De-oxy Ribos nucleic Acid. Chromosomes: DNA + Proteins. Gametes: A mature sexual reproductive cell

Answer 9

"Chromosome" comes from the Greek words khroma meaning "color" and soma meaning "body". Chromosomes got their name from the first lab experiments in the 1880s that revealed chromosomes could be easily stained with dyes, thus making studying them easier.

A gene is located on a chromosome. Every factor in inheritance is due to a particular gene. Genes specify the structure of particular proteins that make up each cell.

Gene comes from the Greek word genea meaning generation, origin, beginning, kin, or sometimes race. Gene was shortened from "pangene" which means "all-generation". Genes contain DNA (deoxyribonucleic acid). DNA is the chemical basis of heredity.

Think of it this way: DNA is in genes, genes are on chromosomes. When "mapping" all genes on all human chromosomes was first seriously conceived, it was called the Human Genome Project - a combination of gene and chromosome.

Answer 10

dna is the smallest unit of genome responsible 4 heredity..its made up of nucleotides{nitrogenous base+deoxyribose sugar+phosphate group}
gene is the short stretch of dna nd v generally use dis termin terms of functional aspect
a chromosome is the condensed form of dna or can say collection of many genes

Answer 11

DNA is a thread like structure which contains genetic information & chromosome is a condensed from of DNA