Women sometimes develop benign tumors calledovarian teratomas or dermoid cysts in their ovaries.Such a tumor begins when a primary oocyte escapesfrom its prophase I arrest and finishes meiosis Iwithin the ovary. (Normally meiosis I does not finish until the primary oocyte is expelled from theovary upon ovulation.) The secondary oocyte thendevelops as if it were an embryo. Development isdisorganized, however, and results in a tumorcontaining differentiated diploid tissues, includingteeth, hair, bone, muscle, and nerve. If a dermoidcyst forms in a woman whose genotype is Aa, whatare the possible genotypes of the cyst, assuming norecombination?
Women sometimes develop benign tumors calledovarian teratomas or dermoid cysts in their ovaries.Such a tumor begins when a primary oocyte escapesfrom its prophase I arrest and finishes meiosis Iwithin the ovary. (Normally meiosis I does not finish until the primary oocyte is expelled from theovary upon ovulation.) The secondary oocyte thendevelops as if it were an embryo. Development isdisorganized, however, and results in a tumorcontaining differentiated diploid tissues, includingteeth, hair, bone, muscle, and nerve. If a dermoidcyst forms in a woman whose genotype is Aa, whatare the possible genotypes of the cyst, assuming norecombination?
Human Heredity: Principles and Issues (MindTap Course List)
11th Edition
ISBN:9781305251052
Author:Michael Cummings
Publisher:Michael Cummings
Chapter6: Cytogenetics: Karyotypes And Chromosome Aberrations
Section: Chapter Questions
Problem 11QP: A spermatogonial cell undergoes mitosis before entering the meiotic cell cycle en route to the...
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Women sometimes develop benign tumors called
ovarian teratomas or dermoid cysts in their ovaries.
Such a tumor begins when a primary oocyte escapes
from its prophase I arrest and finishes meiosis I
within the ovary. (Normally meiosis I does not finish until the primary oocyte is expelled from the
ovary upon ovulation.) The secondary oocyte then
develops as if it were an embryo. Development is
disorganized, however, and results in a tumor
containing differentiated diploid tissues, including
teeth, hair, bone, muscle, and nerve. If a dermoid
cyst forms in a woman whose genotype is Aa, what
are the possible genotypes of the cyst, assuming no
recombination?
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