Uploaded by Ethan Finestead

Mutations-Exit-Worksheet (1)

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Name:___________________________________Date:___________Period:_____
Mutations Exit Worksheet
Identify and label the chromosomal mutations for each picture.
Word Bank: Inversion, Insertion, Deletion, Duplication, Translocation
, Duplicati
: Inversion
Deleti
Insertion
Translocatio
Looking at the diagram of point mutations, identify each type of point mutation and circle the frameshift
mutations.
Word Bank: Insertion, deletion, substitution.
substitution
Insertion
deletion
Recall that every three letters of DNA (codon) is read to code for one amino acid. If a mutation occurs, is
it possible for the protein to be unaffected? Explain your answer.
It is possible for a protein to be unaffected since some codons code for the same amino acid.
Compare gene mutations and chromosomal mutations.
Gene mutations occur change the nucleotide sequence whereas a chromosomal mutation involves
changes to the chromosome.
What type of mutation do you think would be more severe, a gene mutation or a chromosome
mutation? Explain your answer.
Since chromosomal mutation involve large amount of DNA it is more likely for that type of mutation to
be more severe when compared to a gene mutation that can affect single nucleotide and possibly have
not effect on the protein
Describe how nondisjunction occurs.
when chromosome fail to properly sepertate during mitosis
Nondisjunction is a chromosomal mutation that occur when chromosome fail to properly separate
during meiosis. The result is having an extra or missing chromosome in a gamete cell.
What technique(s) do you think could be used to determine if a fetus is affected by a genetic disorder?
Amniocentesis and Chorionic Villi Sampling (CVS) are types of prenatal testing that extract cells to be
used for creating a karyotype to help diagnose genetic disorders.
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