variation in chromosome number and structure

Question 1

Events that reshape genomes

Answer 1

Changes in chromosome numbers involving losses or gains of entire chromosomes
Rearrangements, which reorganize DNA sequences within one or more chromosomes

Question 2

Cytogenetics

Answer 2

Geneticists use stains to identify specific chromosomes and to analyze their structures

Question 3

Euploid

Answer 3

Have complete sets of chromosomes

Question 4

Aneuploid

Answer 4

Have particular chromosomes or parts of chromosomes under or overrepresented

Question 5

xxy

Answer 5

kleinfelter

Question 6

Allopolyploids

Answer 6

created by hybridization between different species

Question 7

Autopolyploids

Answer 7

created by chromosome duplication within a species

Question 8

Aneuploic mosaics

Answer 8

result from mitotic nondisjuction or chromosome lost

Question 9

Endomitosis

Answer 9

chromosome replication and separation of sister chromatids without cell division(produces polyploid tissues

Question 10

polytene

Answer 10

resulting chromasomes from sister chromasomes that do not separate