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Name
Date
Complex Inheritance and Human Heredity
Section 3 Chromosomes and Human Heredity
Main Idea
Details
Organize Information Make a list of some physical characteristics
that appear in your family members or friends. Try to determine
how each trait is inherited by examining its inheritance pattern.
Review
Vocabulary
Use your book or dictionary to define mitosis.
mitosis
New
Vocabulary
Use your book or dictionary to define the following terms.
nondisjunction
Define karyotype and describe its use. Then make a sketch of a
human karyotype in the space below.
karyotype
114
Complex Inheritance and Human Heredity
Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
telomere
Name
Date
Section 3 Chromosomes and Human Heredity
Main Idea
Karyotype
Studies
I found this information
.
on page
(continued)
Details
Sequence how a scientist makes a karyotype.
1.
2.
3.
4.
Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
Compare and contrast karyotype studies and pedigrees by writing
characteristics in the Venn diagram.
Both
Karyotypes
Telomeres
I found this information
.
on page
Pedigrees
Describe telomeres by completing the paragraph.
Telomeres are made of
and
are located at
. They
. Their function is
.
Complex Inheritance and Human Heredity
115
Name
Date
Section 3 Chromosomes and Human Heredity
Main Idea
Nondisjunction
I found this information
.
on page
Details
Model a picture showing the ways that nondisjunction during
meiosis can produce a sex cell with an extra copy of a chromosome.
Fetal Testing
I found this information
.
on page
Summarize the following facts about fetal testing.
• three fetal tests that can identify chromosomal abnormalities
• four possible results of nondisjunction in sex chromosomes
S UMM ARIZE
Analyze how nondisjunction during meiosis could lead to
Klinefelter’s syndrome.
116
Complex Inheritance and Human Heredity
Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
Model a karyotype of a boy with Down syndrome.