9.- How to sequence the human genome- http://ed.ted.com/

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Bachillerato CULTURA CIENTÍFICA 1ºBach 3ºTrimestre (3.-Current projects on Human Genome) Quiz on 9.- How to sequence the human genome- http://ed.ted.com/, created by PEDRO ALVAREZ JIMENEZ on 30/01/2016.
PEDRO ALVAREZ JIMENEZ
Quiz by PEDRO ALVAREZ JIMENEZ, updated more than 1 year ago
PEDRO ALVAREZ JIMENEZ
Created by PEDRO ALVAREZ JIMENEZ almost 9 years ago
160
1

Resource summary

Question 1

Question
If there are 3 billion letters in the reference genome, how much did it cost per letter to sequence the first human genome?
Answer
  • $0.10
  • $1.00
  • $10.00

Question 2

Question
When sequencing a genome, how do scientists deal with the problem of how big the genome is?
Answer
  • Ignore parts of the genome that are unimportant and only sequence important parts
  • Break up the genome into smaller pieces and sequence all the pieces at once
  • Only sequence one of the two strands in a double stranded piece of DNA from a genome

Question 3

Question
What is one way that scientists deal with the problem of how small the genome is?
Answer
  • Use a microscope to see each letter better
  • Add enough colored letters to get more than one to stick at a time to the DNA
  • Make copies of the DNA

Question 4

Question
Scientists use special colored letters and enzymes to learn what the sequence of a cluster of identical pieces of DNA is. How?
Answer
  • A sequential series of pictures of colored spots are taken and analyzed
  • All the colored letters added into newly made DNA make a unique hue for each spot
  • The time before the color fades away is an indication of the sequence of letters

Question 5

Question
Once we have the sequences for each piece of DNA from a genome, scientists ________.
Answer
  • Make sure all the sequences of every piece are the same and that there are no mutations
  • Make sure there is the same number of letters in each piece
  • Put them all together using the first genome sequence as a guide

Question 6

Question
Next step after DNA has been deciphered will be
Answer
  • To check out if it is correct
  • To use that knowledge to improve our characteristics
  • To decipher what the sequence means
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