Consider a diploid cell that has 2 n = 4 chromosomes: one pair of metacentric chromosomes and one pair of acrocentric chromosomes. Suppose that this cell undergoes nondisjunction, giving rise to an autotriploid cell (3 n). The triploid cell then undergoes meiosis. Draw the different types of gametes that could result from meiosis in the triploid cell, showing the chromosomes present in each type. To distinguish between the different metacentric and acrocentricchromosomes, use a different color to draw each metacentric chromosome; similarly, use a different color to draw each acrocentric chromosome. P generationSpecies ISpecies 2GG HH II(2n - 6)AA BBCC(2n - 6)GametogenesisGametesАвСFuseHybridization betweentwo diploid species(2n = 6) produces.F, generationHybrid2 a hybrid with sixnonhomologouschromosomes.that do not par andsegregate properly inmeioss, resulting inunbalanced, nonvablegametes.ABCGHI(2n = 6)Nondisjunction atan early mitoticcell divisionGametogenesisВнNonviablegametesAllotetraploid (amphidiploid)Nondisjunction leadsto a doubling ofall chromosomesproducing an allotetraplod (4n= 12).AABBCCGGHH II(4n - 12)Cametogenesis|Chromosome painngand segregation arenormal, producingbalanced gametes.ABCGHIABCGHIGametes

A triploid cell refers to the cell that has a set of three chromosomes irrespective of the number of…

Answered: P generation Species I Species 2 GG HH…

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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Consider a diploid cell that has 2 n = 4 chromosomes: one pair of metacentric chromosomes and one pair of acrocentric chromosomes. Suppose that this cell undergoes nondisjunction, giving rise to an autotriploid cell (3 n). The triploid cell then undergoes meiosis. Draw the different types of gametes that could result from meiosis in the triploid cell, showing the chromosomes present in each type. To distinguish between the different metacentric and acrocentric
chromosomes, use a different color to draw each metacentric chromosome; similarly, use a different color to draw each acrocentric chromosome.

P generation
Species I
Species 2
GG HH II
(2n - 6)
AA BBCC
(2n - 6)
Gametogenesis
Gametes
АвС
Fuse
Hybridization between
two diploid species
(2n = 6) produces.
F, generation
Hybrid
2 a hybrid with six
nonhomologous
chromosomes.
that do not par and
segregate properly in
meioss, resulting in
unbalanced, nonvable
gametes.
ABCGHI
(2n = 6)
Nondisjunction at
an early mitotic
cell division
Gametogenesis
Вн
Nonviable
gametes
Allotetraploid (amphidiploid)
Nondisjunction leads
to a doubling of
all chromosomes
producing an allo
tetraplod (4n= 12).
AABBCCGGHH II
(4n - 12)
Cametogenesis
|Chromosome painng
and segregation are
normal, producing
balanced gametes.
ABCGHI
ABCGHI
Gametes

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