Question 1

The physical location of a gene on a chromosome is its _______.

Accepted Answer

The answer of The physical location of a gene on...

Question 2

Mary's mother is diagnosed with Huntington's disease while Mary is in the first trimester of her first pregnancy. Mary is tested and finds that she carries the Huntington's allele. Mary decides to have amniocentesis because amniocentesis

Accepted Answer

A)  will cure Huntington's disease if it is done early enough in pregnancy. 
B)  will allow Mary to determine if her child also carries the Huntington's allele. 
C)  will let Mary know which of her eggs carry the Huntington's allele. 
D)  is the only way to determine if Mary's husband also has the Huntington's allele. 
A)  will cure Huntington's disease if it is done early enough in pregnancy. 
B)  will allow Mary to determine if her child also carries the Huntington's allele. 
C)  will let Mary know which of her eggs carry the Huntington's allele. 
D)  is the only way to determine if Mary's husband also has the Huntington's allele.

Question 3

Genes become linked when crossing-over occurs between nonhomologous chromosomes.

Accepted Answer

A) True 
 B)False

Question 4

One chromosomal abnormality that is usually fatal is

Accepted Answer

A)  a mutation in a gene on the chromosome. 
B)  the exchange of material between homologous chromosomes. 
C)  a change in the number of sex chromosomes. 
D)  the addition of an extra autosomal chromosome. 
A)  a mutation in a gene on the chromosome. 
B)  the exchange of material between homologous chromosomes. 
C)  a change in the number of sex chromosomes. 
D)  the addition of an extra autosomal chromosome.

Question 5

The gender of a human child is determined by the

Accepted Answer

A)  loci. 
B)  autosome. 
C)  egg. 
D)  sperm. 
A)  loci. 
B)  autosome. 
C)  egg. 
D)  sperm.

Question 6

Most inherited human genetic disorders are caused by

Accepted Answer

A)  crossing-over. 
B)  autosomal sex chromosomes. 
C)  mutations of single genes. 
D)  environmental effects. 
A)  crossing-over. 
B)  autosomal sex chromosomes. 
C)  mutations of single genes. 
D)  environmental effects.

Question 7

In humans, the "master switch" that determines whether an embryo will become a male is

Accepted Answer

A)  the X chromosome. 
B)  the SRY gene. 
C)  found on chromosome 6. 
D)  the AB+ gene. 
A)  the X chromosome. 
B)  the SRY gene. 
C)  found on chromosome 6. 
D)  the AB+ gene.

Question 8

A _______ is a chart that shows genetic relationships within a family over several generations.

Accepted Answer

The answer of A _______ is a chart that shows...

Question 9

Which of the following processes creates new alleles?

Accepted Answer

A)  crossing-over 
B)  independent assortment 
C)  mutation 
D)  random fertilization 
A)  crossing-over 
B)  independent assortment 
C)  mutation 
D)  random fertilization

Question 10

A _______ is an individual with a heterozygous genotype who does not express the recessive trait but can pass it along to offspring.

Accepted Answer

The answer of A _______ is an individual with a...

Exam 11: Chromosomes and Human Genetics

The physical location of a gene on a chromosome is its _______.

Mary's mother is diagnosed with Huntington's disease while Mary is in the first trimester of her first pregnancy. Mary is tested and finds that she carries the Huntington's allele. Mary decides to have amniocentesis because amniocentesis

Genes become linked when crossing-over occurs between nonhomologous chromosomes.

One chromosomal abnormality that is usually fatal is

The gender of a human child is determined by the

Most inherited human genetic disorders are caused by

In humans, the "master switch" that determines whether an embryo will become a male is

A _______ is a chart that shows genetic relationships within a family over several generations.

Which of the following processes creates new alleles?

A _______ is an individual with a heterozygous genotype who does not express the recessive trait but can pass it along to offspring.

The Nature of Science and the Characteristics of Life

Organizing the Diversity of Life

Major Groups of Living Organisms

Chemical Building Blocks

Cell Structure and Internal Compartments

Cell Membranes, Transport, and Communication

Energy and Enzymes

Photosynthesis and Cellular Respiration

Cell Division

Patterns of Inheritance

DNA

From Gene to Protein

Control of Gene Expression

DNA Technology

How Evolution Works

Evolution of Populations

Adaptation and Speciation

The Evolutionary History of Life

Maintaining the Internal Environment

Animal Nutrition and Digestion

Gas Exchange

The Circulatory System

Animal Hormones

The Nervous System

Sensing the Environment

Skeletons, Muscles, and Movement

Defenses against Disease

Reproduction and Development

Animal Behavior

Plant Structure, Nutrition, and Transport

Plant Growth and Reproduction

The Biosphere

Growth of Populations

Interactions among Organisms

Communities of Organisms

Ecosystems

Global Change

Biodiversity and People

Cancer: Cell Division Out of Control

Harnessing the Human Genome

Humans and Evolution

Smoking--Beyond Lung Cancer

Feeding a Hungry Planet

Building a Sustainable Society

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