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7. Down syndrome may be the result of a piece of chromosome 21 breaking off and reattaching to chromosome 14. This type of gene mutation is known as a ________________________. base-pair substitution gene
asked
Oct 28, 2018
Biology
high-school
1
answer
5
votes
125k
views
Which is a central idea of gates mister jefferson and the trials of phillis wheatley
asked
Jan 10, 2017
English
high-school
2
answers
5
votes
140k
views
A store pays $10 for a bracelet the markup is 115%
asked
Nov 4, 2016
Mathematics
middle-school
1
answer
5
votes
232k
views
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