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The human genome is made up of DNA, which has four different chemical building blocks. These are called bases and abbreviated A, T, C, and G. In the human genome, about 3 billion bases are arranged along the chromosomes in a particular order for each unique individual. It's also important to mention that not all of those bases serve a known function. Humans have about 30,000 protein coding genes, which comprise only 2% of our genome but form the builiding blocks of all our cells. The other 98% is made up of elements such as miRNA which regulate how the protein coding genes function. Only a few years ago it was thought most of the DNA in the human genome was junk (repetative waste accumulated over evolution that cluttered the genome) It is now becoming clear that at least 80% of the genome is transcribed and may therefore be of some involved in how our bodies function.


To get an idea of the size of the human genome present in each of our cells, consider the following analogy: If the DNA sequence of the human genome were compiled in books, the equivalent of 200 volumes the size of a Manhattan telephone book (at 1000 pages each) would be needed to hold it all.



It would take about 9.5 years to read out loud (without stopping) the 3 billion bases in a person's genome sequence. This is calculated on a reading rate of 10 bases per second, equaling 600 bases/minute, 36,000 bases/hour, 864,000 bases/day, 315,360,000 bases/year.
Storing all this information is a great challenge to computer experts known as bioinformatics specialists. One million bases (called a megabase and abbreviated Mb) of DNA sequence data is roughly equivalent to 1/4 megabyte of computer data storage space. Since the human genome is 3 billion base pairs long, 3/4 gigabytes of computer data storage space are needed to store the entire genome. This includes nucleotide sequence data only and does not include data annotations and other information that can be associated with sequence data.
As time goes on, more annotations will be entered as a result of laboratory findings, literature searches, data analyses, personal communications, automated data-analysis programs, and auto annotators. These annotations associated with the sequence data will likely dwarf the amount of storage space actually taken up by the initial 3 billion nucleotide sequence. Of course, that's not much of a surprise because the sequence is merely one starting point for much deeper biological understanding!
Remember that humans have a diploid genome thus our entire complement of DNA is composed of 6 billion bases; 3 billion from each parent.

The reason for the Human Genome Project is to map out the human genome so as to find a way to prevent genetic disorders such as birth defects and so on.

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โˆ™ 2009-12-11 16:32:26
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Q: How big is the human genome?
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Related questions

What is goal of the Human Genome Project?

To find the complete sequence of the human genome.


What is the population of Human Genome Sciences?

Human Genome Sciences's population is 1,000.


When was Human Genome Sciences created?

Human Genome Sciences was created in 1992.


What was produced as a result of the Human Genome Project?

A gene map of the human genome


How many pairs of the human genome?

There are 23 pairs of chromosomes in the human genome.


What is human genome?

The human genome is the DNA or genetic blueprint for all people.


The goal of the human genome project is to?

The Human Genome Project aimed to map the entire sequence of the human genome, or DNA sequence. It was finished in 2003.


The human genome project is an attempt to-?

The human genome project is an attempt to sequence all human DNA.


How many genes are in the human genome?

Before the completion of the Human Genome Project, most biologists expected to There are 23 chromosomal pairs in the human genome. There are an estimated 20,000-25,000 genes in the human genome. It is approximately 25000 per cell.


Human genome size?

The length of the human genome is over 3 million base pairs. The genome is organized into 22 paired chromosomes, and the genome is the genetic material of an organism.


What is the purpose for the human genome project?

The purpose for the Human Genome Project was to identify all the 20,000 to 25,000 genes in human DNA and to identify the DNA sequences of every gene in the human genome.


What is the purpose of the Human Genome Project?

to identify the DNA sequence of every gene in the human genome.


What percentage of the human genome is viral what percentage of the human genome is bacterial?

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Which is a goal of the Human Genome Project?

to identify the 3 billion genes that comprise the human genome


What information cannot be obtained from the Human Genome Project?

what information cannot be obtained from the human genome project


Which cancers does the human genome project help?

the human genome project helpes many different cancers


What is the Human Genome Project?

The Human Genome Project is an international effort to map and sequence all the DNA base pairs of the human genome. It's also an effort to identify the all the genes and the protein/trait that they code for in the human genome. ============================================== The Human Genome Project studies the human chromosomes to determines which genes are involved in what aspects of the human body reproduction, growth, functioning, and health intending to produce a map of the DNA structure, what it does, and how.


Why is a genome so important?

The human genome is all of the bodies DNA


Is the human genome different from the monkey genome?

They are about 93% similar in their genomes.


What percent of the human genome is composed of these transposable sequences?

transposable elements make up 50% of the human genome


What is the human genome?

The whole sequence of the human Dna


What exactly is the human genome?

The human genome is the group of detailed instructions inside human cells. It shows the entire nucleotide sequence of human DNA (deoxyribonucleic acid).


The human genome project can have widespread benefits for developing cures for human diseases what explains the purpose of the project?

An effort to sequence and map the human genome


Was the US responsible for the human genome project?

Yes, the United States founded the Human Genome Project in the 1990's.


How many base pairs does the human genome contain?

The human genome is made up of 3 billion base pairs.