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TLS Online TPP Program

#Id: 6901

Chromosomes are classified into four basic

Metacentric chromosome
Submetacentric chromosome
Acrocentric chromosome
Telocentric chromosome

#Unit 8. Inheritance Biology #Structural and numerical alterations of chromosomes #Part B Pointers
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TLS Online TPP Program

#Id: 6910

#Unit 8. Inheritance Biology

Reverse duplication - Duplicated segment is inverted.
 
TLS Online TPP Program

#Id: 6911

#Unit 8. Inheritance Biology

Tandem duplication - Duplicated chromosome segment is adjacent to the original segment.
TLS Online TPP Program

#Id: 6912

#Unit 8. Inheritance Biology

In heterozygotes DUPLICATIONS - The pairing and synapsis of homologous regions require that one or both chromosomes loop and twist. 
TLS Online TPP Program

#Id: 6913

#Unit 8. Inheritance Biology

EFFECTS OF CHROMOSOME DUPLICATIONS - Bar phenotype in Drosophila
TLS Online TPP Program

#Id: 6914

#Unit 8. Inheritance Biology

Duplications and deletions often arise from unequal crossing over.
TLS Online TPP Program

#Id: 6915

#Unit 8. Inheritance Biology

Chromosome duplications are one way in which new genes evolve.