What does DNA stand for?

DNA - Deoxyribonucleic acid

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What is a chromosome?

A chromosome is a long DNA molecule with part of the genetic material of an organism.

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Where in a cell are chromosomes located?

The nucleus. 

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How many chromosomes are there in a typical human cell? 

46.

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How many pairs of chromosomes are there in a typical human cell?

23 pairs.

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What is the basic structure of DNA?

DNA is a polymer made up of two strands wrapped around each other to form a double helix.

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What are sex chromosomes?

Sex chromosomes are the 23rd pair of chromosomes. They determine whether an individual is male or female. 

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What sex chromosomes do females have?

XX.

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What sex chromosomes do males have?

XY.

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What is a gene?

A gene is a small section of DNA on a chromosome. Each gene codes for a particular sequence of amino acids, to make a specific protein.

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What is the 'genome' of an organism?

The genome of an organism is the entire genetic material of that organism. 

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How could understanding the human genome help science?

  1. It will allow scientists to search for genes linked to different diseases.


  1. It could help us understand and treat inherited disorders.


  1. It also could be used in tracing human migration patterns from the past.

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