8 aberraciones cromosomicas

Lecture Notes with Key Figures PowerPoint® Presentation for

Concepts of Genetics
Eighth Edition

Klug, Cummings, Spencer

Chapter 8
Chromosome Mutations: Variation in
Chromosome Number and Arrangement
Copyright © 2006 Pearson Prentice Hall, Inc.

8.1 Terminología específica de
describir las variaciones en el
número cromosómico
Aberraciones o Mutaciones
cromosómico

8.2 Variación en el númerode
cromosomas de los resultados de
la no disyunción

Figure 8-1

Copyright © 2006 Pearson Prentice Hall, Inc.

first meiotic division: prophase: leptotene

chromosome 21

other chromosomes

normal

trisomy 21

© 2003 H. NUMABE M.D.

first meiotic division: prophase: leptotene

chromosome 21

other chromosomes

normal

trisomy 21

© 2003 H. NUMABE M.D.

first meiotic division: prophase:leptotene

chromosome 21

other chromosomes

normal

trisomy 21

© 2003 H. NUMABE M.D.

first meiotic division: prophase: leptotene

chromosome 21

other chromosomes

normal

trisomy 21

© 2003 H. NUMABE M.D.

first meiotic division: prophase: leptotene

chromosome 21

other chromosomes

normal

trisomy 21

© 2003 H. NUMABE M.D.

first meiotic division: prophase: leptotene

chromosome 21

otherchromosomes

normal

trisomy 21

© 2003 H. NUMABE M.D.

first meiotic division: prophase: leptotene

chromosome 21

other chromosomes

normal

trisomy 21

© 2003 H. NUMABE M.D.

first meiotic division: prophase: leptotene

chromosome 21

other chromosomes

normal

trisomy 21

© 2003 H. NUMABE M.D.

first meiotic division: prophase: zygotene

chromosome 21

other chromosomes

normal

trisomy 21

©2003 H. NUMABE M.D.

first meiotic division: prophase: pachytene

chromosome 21

other chromosomes

normal

trisomy 21

© 2003 H. NUMABE M.D.

first meiotic division: prophase: pachytene

chromosome 21

other chromosomes

normal

trisomy 21

© 2003 H. NUMABE M.D.

first meiotic division: prophase: diplotene

chromosome 21

other chromosomes

normal

trisomy 21

© 2003 H. NUMABE M.D.

firstmeiotic division: prophase: diplotene

chromosome 21

other chromosomes

normal

trisomy 21

© 2003 H. NUMABE M.D.

first meiotic division: metaphase I

chromosome 21

other chromosomes

normal

trisomy 21

© 2003 H. NUMABE M.D.

first meiotic division: metaphase I

chromosome 21

other chromosomes

normal

trisomy 21

© 2003 H. NUMABE M.D.

first meiotic division: anaphase I

chromosome 21

otherchromosomes

normal

trisomy 21

© 2003 H. NUMABE M.D.

first meiotic division: telophase I

chromosome 21

other chromosomes

normal

trisomy 21

© 2003 H. NUMABE M.D.

first meiotic division: telophase I

chromosome 21

other chromosomes

normal

trisomy 21

© 2003 H. NUMABE M.D.

first meiotic division: telophase I: first polar body

chromosome 21

other chromosomes

normal

trisomy 21

©2003 H. NUMABE M.D.

first meiotic division: telophase I: first polar body

chromosome 21

other chromosomes

normal

trisomy 21

© 2003 H. NUMABE M.D.

first meiotic division: telophase I: first polar body

chromosome 21

other chromosomes

normal

trisomy 21

© 2003 H. NUMABE M.D.

second meiotic division: metaphase II

chromosome 21

other chromosomes

normal

trisomy 21

© 2003 H. NUMABEM.D.

second meiotic division: metaphase II

chromosome 21

other chromosomes

normal

trisomy 21

© 2003 H. NUMABE M.D.

second meiotic division: anaphase II

chromosome 21

other chromosomes

normal

trisomy 21

© 2003 H. NUMABE M.D.

second meiotic division: telophase II

chromosome 21

other chromosomes

normal

trisomy 21

© 2003 H. NUMABE M.D.

second meiotic division: telophase IIchromosome 21

other chromosomes

normal

trisomy 21

© 2003 H. NUMABE M.D.

second meiotic division: second polar bodies

chromosome 21

other chromosomes

normal

trisomy 21

© 2003 H. NUMABE M.D.

second meiotic division: second polar bodies

chromosome 21

other chromosomes

normal

trisomy 21

© 2003 H. NUMABE M.D.

second meiotic division: second polar bodies

chromosome 21

other chromosomes...