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Bio: Ch.14.3: Studying the Human Genome
Terms in this set (19)
What techniques are used to study human DNA?
By using tools that cut (restriction enzymes), separate (through gel electrophoresis: a lab method used to separate fragments of DNA based on their size by being placed on a gel, with an applied electrical voltage), and then replicate DNA base by base, scientists can now read the base sequences in DNA from any cell.
***Read more into Reading DNA paragraph and picture on p.404-405.
What were the goals of the Human Genome Project, and what have we learned so far?
The main goals of the Human Genome Project, which was a 13 year international effort that started in 1990, were to sequence all 3 billion base pairs of human DNA and to identify all human genes;
The Human Genome Project pinpointed genes, and associated particular sequences in those genes, with numerous diseases and disorders. It also identified about 3,000,000 locations where single-base DNA differences (SNPs, which mean single nucleotide polymorphisms) occur in humans;
***Look into Written Key Question 2 for more thorough answer.
Enzymes produced by bacteria that cut even the largest DNA molecule into precise pieces, called restriction fragments, that are several hundred bases in length; Each enzyme cuts DNA at a different sequence of nucleotides.
A lab method used to separate fragments of DNA based on their size, by being placed on a gel with an applied electrical voltage.
Field of science where molecular biology (life science; observations, experiments, hypotheses) and Information science (statistics, computer modeling, databases) merge (data analyses, visualizations, predictions), to study the human genome or genomes in general.
The study of whole genomes, including genes and their functions.
The human genome consists of approximately how many DNA base pairs?
3,000,000,000 (3 billion)
What percentage of the human genome actually codes for proteins?
What is used to cut DNA into small pieces that can be sequenced?
What method is being used when you sequence short pieces of DNA and then use a computer to find overlapping sequences, that map to a much longer DNA fragment?
What is the technique used to separate DNA strands of different lengths?
What is the study of whole genomes, including genes and their functions called?
DNA can be cut into shorter sequences by proteins known as. . .
Recommended textbook explanations
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