WHAT YOU WILL LEARN-prokaryotic/eukaryotic gene regulation-types of mutations & results-mutagens
READING Q’s
1-Like DNA code, the following sentence: “The dog ran” contains only 3 letter words
-INSERT a “z” after “Th”—rewrite the sentence:Thz edo gra-WRITE the sentence again inserting an additional letterThz zed ogr-What happens to the sentences as you add letters?become nonsense
READING Q’s
2-DESCRIBE point mutation
-single nucleotide/base pair is changedcan cause a genetic disorder
READING Q’s
3-NAME-what type of mutation occurs when a STOP codon replaces an amino acid codon
-nonsense mutation cause translation to terminate early proteins cannot function normally
READING Q’s
4-EVALUATE-Would a 3-nucleotide insertion result in a frameshift? YES NO-EXPLAIN-insertion of a nucleotide shifts an entire 3 code sequence—shifts amino acid sequence
X
READING Q’s
5-RECORDThe mRNA sequence/sub A for G
-AUG–AAG–UUU–GGC – ACA – UUG-UAA
READING Q’s
6-COMPLETE table: frameshift / substitution
-substitution-substitution-frameshift
READING Q’s
7-EXPLAIN how UV light damages DNA
-links thymines—forms a “kink”
READING Q’s
8-DETERMINE -what a mutation can do to a body (somatic) cell
-cell death-cancer cell
READING Q’s
9-DISCUSS why a mutagen can have longer lasting effects in a sex cell than a body cell
-mutations in sex cells are passed on to their offspring-mutations in body cells are not inherited
