Genetics exam 2

Which category of mutations do the following fit in to Nullisomy Trisomy 2N-1

Aneuploidy

Aneuploidy

Change in the number of individual chromosomes

Which category of mutations do the following fit in to Duplication Deletion Inversion Translocation

Chromosome rearrangement

Place the type of chromosomal mutation next to each set of chromosomes. The • represents the centromere. A B • C D E F G Is the normal segment Chromsomal Mutation 3 A B • C D E

Deletion of FG

Place the type of chromosomal mutation next to each set of chromosomes. The • represents the centromere. A B • C D E F G Is the normal segment Chromsomal Mutation 2 A B • D E F C D E F G

Displaced duplication of DEF

Match the definitions to the appropriate terms that describe the number of chromosomes. Single unpaired copy of each chromosome

Haploid

Nullisomy

Loss of both members of homologous pair

Monosomy

Loss of one member of a homologous pair

Match the definitions to the appropriate terms that describe the number of chromosomes. Only one copy of a specific chromosome

Monosomic

Place the type of chromosomal mutation next to each set of chromosomes. The • represents the centromere. A B • C D E F G Is the normal segment Chromsomal Mutation 5 A E D C • B F G

Paricentric inversion of BCDE

Which category of mutations do the following fit in to Tetraploid 3N Hexaploid

Polyploidy

Place the type of chromosomal mutation next to each set of chromosomes. The • represents the centromere. A B • C D E F G Is the normal segment Chromsomal Mutation 1 A B • C D E F D E F G

Tandem Duplication of DEF

Match the definitions to the appropriate terms that describe the number of chromosomes. n=1

a Genome composed of one unique chromosome

Polyploidy

addition of entire chromosome sets

rearrangement

change in chromosome structure

Inversion

chromosome segment inverted 180 degrees

deletion

deletion of a chromosome segment

duplication

duplication of a chromosome segment

Reciprocal translocation

exchange between segments of nonhomologous chromosomes or between regions of the same chromosome

Trisomy

gain of one chromosome resulting in three homologous chromosome

Tetrasomy

gain of two homologous chromosome resulting in four homolgous chromosomes

paracentric inversion

inversion that does not include the centromere in the inverted region

paricentric inversion

inversion that includes the centromere in the inverted region

Translocation

movement of a chromosome segment to a nonhomologus chromosome or to another region of the same chormosome

nonreciprocal translocation

movement of a chromosome segment to a nonohomologous chromosome or to another region of the same chromosome without reciprocal exchange

Place the type of chromosomal mutation next to each set of chromosomes. The • represents the centromere. A B • C D E F G Is the normal segment Chromsomal Mutation 4 A B • C G F E D

paracentric inversion that includes DEFG

Autopolyploidy

polyploidy in which extra chromosome sets are derived from the same species

Allopolyploidy

polyploidy in which extra chromosome sets are derived from two or more species