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23 Cards in this Set

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In XX/XO sex determination, which is the male?
The XO is the male
In XX/XO sex determination, which is the female?
The XX is the female
Produces only one kind of gamete
Homogametic
Produced two types of gametes
Heterogametic
Males develop from unfertilized eggs.
Haplodiploidy
Are genetically female, but have underdeveloped secondary sex characteristics
Turner Syndrome
XO
Turner Syndrome
XXY, XXXY, XXXXY
Klinefelter Syndrome
Genetically male, but have small testes and underdeveloped pubic and facial hair
Klinefelter Syndrome
Female and have no other distinctive features but to be tall and thin. Normally they have normal intelligence. The rate of mental retardation increases with each additional X added, although these individuals will still have normal features.
Triplo-X
XXX
Triplo-X
Individuals are XY but are lacking the androgen on the X chromosome and cannot respond to the SRY genes testosterone synthesis. Individuals with this disease inherit it from their mothers.
Androgen Insensitivity Syndrome
Failure of chromosomes to separate completely during anaphase I of meiosis.
Nondisjunction
Ensures that the same amount of X-linked gene will be produced in the cells of males and females.
Dosage Compensation
XXX, AA
Metafemale
XO, AA
Male
XO, AAA
Metamale
XXXX, AAA
Metafemale
XXY, AA
Female
XX, AAA
Intersex
XXXY, AA
Metafemale
XY, AA
Male
The system fruit flies use to determine sex is called the ____.
Genic Balance System