TABLE 8.1 Aneuplold Conditions In Humans Condition Frequency Syndrome Characteristics Autosomal Mental and physical deficiencies, wide variety of defects in organs, large triangular nose, early death Trisomy 13 1/15,000 Patau Trisomy 18 Mental and physical deficiencies, facial abnormalities, extreme muscle tone, early death 1/6000 Edward Trisomy 21 1/800 Down Mental deficiencies, abnormal pattern of palm creases, slanted eyes, flattened face, short stature Sex Chromosomal Klinefelter Sexual immaturity (no sperm), breast swelling (males) XXY 1/1000 XYY V1000 Jacobs Tall and thin (males) XXX 1500 Triple X Tall and thin, menstrual irregularity (females) Short stature, webbed neck, sexually undeveloped (females) 15000 Turner

Basic Clinical Laboratory Techniques 6E
6th Edition
ISBN:9781133893943
Author:ESTRIDGE
Publisher:ESTRIDGE
Chapter8: Basic Parasitology
Section8.1: Introduction To Parasitology
Problem 15RQ
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Table 8.1 shows that Turner syndrome occurs when an individual inherits one X chromosome but lacks a second sex chromosome. Can Turner syndrome be due to nondisjunction during oogenesis, spermatogenesis, or both? If a phenotypically normal couple has a color-blind child (due to a recessive X-linked allele) with Turner syndrome, did nondisjunction occur during
oogenesis or spermatogenesis in this child’s parents? Explain your answer.

TABLE 8.1
Aneuplold Conditions In Humans
Condition
Frequency
Syndrome
Characteristics
Autosomal
Mental and physical
deficiencies, wide variety
of defects in organs, large
triangular nose, early death
Trisomy 13
1/15,000
Patau
Trisomy 18
Mental and physical
deficiencies, facial
abnormalities, extreme muscle
tone, early death
1/6000
Edward
Trisomy 21
1/800
Down
Mental deficiencies, abnormal
pattern of palm creases,
slanted eyes, flattened face,
short stature
Sex Chromosomal
Klinefelter
Sexual immaturity (no sperm),
breast swelling (males)
XXY
1/1000
XYY
V1000
Jacobs
Tall and thin (males)
XXX
1500
Triple X
Tall and thin, menstrual
irregularity (females)
Short stature, webbed
neck, sexually undeveloped
(females)
15000
Turner
Transcribed Image Text:TABLE 8.1 Aneuplold Conditions In Humans Condition Frequency Syndrome Characteristics Autosomal Mental and physical deficiencies, wide variety of defects in organs, large triangular nose, early death Trisomy 13 1/15,000 Patau Trisomy 18 Mental and physical deficiencies, facial abnormalities, extreme muscle tone, early death 1/6000 Edward Trisomy 21 1/800 Down Mental deficiencies, abnormal pattern of palm creases, slanted eyes, flattened face, short stature Sex Chromosomal Klinefelter Sexual immaturity (no sperm), breast swelling (males) XXY 1/1000 XYY V1000 Jacobs Tall and thin (males) XXX 1500 Triple X Tall and thin, menstrual irregularity (females) Short stature, webbed neck, sexually undeveloped (females) 15000 Turner
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