Question 1

Explain how the terms diploid and haploid relate to human chromosome number in both autosomes and sex cells.

Accepted Answer

Humans have 46 chromosomes that exist in

Question 2

About ____ percent of children with Down syndrome are severely intellectually disabled.

Accepted Answer

A)  five 
B)  ten 
C)  twenty-five 
D)  thirty 
E)  forty 
A)  five 
B)  ten 
C)  twenty-five 
D)  thirty 
E)  forty

Question 3

Submetacentric describes a chromosome whose telomeres are attached to the centromeres.

Accepted Answer

A) True 
 B)False

Question 4

Fragile sites appear as ____________________ or ____________________ at specific sites on a chromosome.

Accepted Answer

gaps; brea

Question 5

List at least three types of information provided by a karyotype and interpret the chromosomal structural abnormality written as 46,XX,t(18q).

Accepted Answer

A karyotype provides several kinds of in

Question 6

More than ____ percent of couples decide to terminate a Down syndrome pregnancy.

Accepted Answer

A)  ten 
B)  thirty 
C)  fifty 
D)  seventy 
E)  ninety 
A)  ten 
B)  thirty 
C)  fifty 
D)  seventy 
E)  ninety

Question 7

A condition in which both copies of a chromosome are inherited from one parent is called ____________________.

Accepted Answer

uniparenta

Question 8

Chromosomes are usually studied and photographed while they are in anaphase of mitosis.

Accepted Answer

A) True 
 B)False

Question 9

Karyotypes prepared from chorionic villus cells can be used to identify many ____________________ abnormalities.

Accepted Answer

chromosoma

Question 10

There are no cases of -XX or Y individuals,but X individuals do exist.Propose an explanation for this statistic.

Accepted Answer

Embryos without an X chromosome are not

Question 11

The risk for Down syndrome increases ____.

Accepted Answer

A)  when the mother is over thirty-five years old 
B)  when the father is over thirty-five years old 
C)  when the father is over fifty years old 
D)  for dizygotic twins 
E)  for monozygotic twins 
A)  when the mother is over thirty-five years old 
B)  when the father is over thirty-five years old 
C)  when the father is over fifty years old 
D)  for dizygotic twins 
E)  for monozygotic twins

Question 12

One possible explanation for why ____________________ is a primary risk factor for autosomal trisomy is that oocytes remain in meiosis I until ovulation,which could take place many years after birth,making them more susceptible to damage.

Accepted Answer

maternal a

Question 13

Spindle fibers attach to the ____ of a chromosome during cell division.

Accepted Answer

A)  centromere 
B)  telomere 
C)  cell membrane 
D)  short arms 
E)  gametes 
A)  centromere 
B)  telomere 
C)  cell membrane 
D)  short arms 
E)  gametes

Question 14

Turner syndrome is not associated with intellectual disability.

Accepted Answer

A) True 
 B)False

Question 15

Amniocentesis is not performed on mothers over the age of thirty-five.

Accepted Answer

A) True 
 B)False

Question 16

Approximately 40% of all children with Down syndrome have congenital ____________________ defects.

Accepted Answer

The answer of Approximately 40% of all children with Down...

Question 17

When constructing a karyotype,the chromosome images are arranged in pairs according to ____________________ and ____________________.

Accepted Answer

A)  size; telomere location 
B)  size; centromere location 
C)  banding pattern; centromere location 
D)  banding pattern; telomere location 
E)  size; banding pattern 
A)  size; telomere location 
B)  size; centromere location 
C)  banding pattern; centromere location 
D)  banding pattern; telomere location 
E)  size; banding pattern

Question 18

Define the terms triploidy and autosomal trisomy and describe characteristics and consequences of each genetic disorder.

Accepted Answer

The most common form of polyploidy in hu

Question 19

A deletion in the short arm of chromosome 5 is associated with ____ syndrome,which causes intellectual disability,defects in facial development,and an abnormal larynx.

Accepted Answer

A)  Down 
B)  Klinefelter 
C)  Turner 
D)  cri du chat 
E)  XYY 
A)  Down 
B)  Klinefelter 
C)  Turner 
D)  cri du chat 
E)  XYY

Question 20

Researchers have suggested that all live-born infants with Turner syndrome are actually ____________________,with both 46,XX and 45,X cells present in their bodies.

Accepted Answer

The answer of Researchers have suggested that all live-born infants...

Explain how the terms diploid and haploid relate to human chromosome number in both autosomes and sex cells.

About ____ percent of children with Down syndrome are severely intellectually disabled.

Submetacentric describes a chromosome whose telomeres are attached to the centromeres.

Fragile sites appear as or at specific sites on a chromosome.

List at least three types of information provided by a karyotype and interpret the chromosomal structural abnormality written as 46,XX,t(18q).

More than ____ percent of couples decide to terminate a Down syndrome pregnancy.

A condition in which both copies of a chromosome are inherited from one parent is called ____________________.

Chromosomes are usually studied and photographed while they are in anaphase of mitosis.

Karyotypes prepared from chorionic villus cells can be used to identify many ____________________ abnormalities.

There are no cases of -XX or Y individuals,but X individuals do exist.Propose an explanation for this statistic.

The risk for Down syndrome increases ____.

One possible explanation for why ____________________ is a primary risk factor for autosomal trisomy is that oocytes remain in meiosis I until ovulation,which could take place many years after birth,making them more susceptible to damage.

Spindle fibers attach to the ____ of a chromosome during cell division.

Turner syndrome is not associated with intellectual disability.

Amniocentesis is not performed on mothers over the age of thirty-five.

Approximately 40% of all children with Down syndrome have congenital ____________________ defects.

When constructing a karyotype,the chromosome images are arranged in pairs according to and .

Define the terms triploidy and autosomal trisomy and describe characteristics and consequences of each genetic disorder.

A deletion in the short arm of chromosome 5 is associated with ____ syndrome,which causes intellectual disability,defects in facial development,and an abnormal larynx.

Researchers have suggested that all live-born infants with Turner syndrome are actually ____________________,with both 46,XX and 45,X cells present in their bodies.

A Perspective on Human Genetics

Cells and Cell Division

Transmission of Genes from Generation to Generation

Pedigree Analysis in Human Genetics

The Inheritance of Complex Traits

Development and Sex Determination

The Structure - Replication - and Chromosomal Organization of DNA

Gene Expression and Gene Regulation

From Proteins to Phenotypes

Genome Alterations - Mutation and Epigenetics

Genes and Cancer

An Introduction to Genetic Technology

Biotechnology and Society

Genomes and Genomics

Reproductive Technology - Genetic Testing - and Gene Therapy

Genes and The Immune System

Genetics of Behavior

Population Genetics and Human Evolution

Filters

Exam 6: Cytogenetics - Karyotypes and Chromosome Aberrations

Explain how the terms diploid and haploid relate to human chromosome number in both autosomes and sex cells.

About ____ percent of children with Down syndrome are severely intellectually disabled.

Submetacentric describes a chromosome whose telomeres are attached to the centromeres.

Fragile sites appear as ____________________ or ____________________ at specific sites on a chromosome.

List at least three types of information provided by a karyotype and interpret the chromosomal structural abnormality written as 46,XX,t(18q).

More than ____ percent of couples decide to terminate a Down syndrome pregnancy.

A condition in which both copies of a chromosome are inherited from one parent is called ____________________.

Chromosomes are usually studied and photographed while they are in anaphase of mitosis.

Karyotypes prepared from chorionic villus cells can be used to identify many ____________________ abnormalities.

There are no cases of -XX or Y individuals,but X individuals do exist.Propose an explanation for this statistic.

The risk for Down syndrome increases ____.

One possible explanation for why ____________________ is a primary risk factor for autosomal trisomy is that oocytes remain in meiosis I until ovulation,which could take place many years after birth,making them more susceptible to damage.

Spindle fibers attach to the ____ of a chromosome during cell division.

Turner syndrome is not associated with intellectual disability.

Amniocentesis is not performed on mothers over the age of thirty-five.

Approximately 40% of all children with Down syndrome have congenital ____________________ defects.

When constructing a karyotype,the chromosome images are arranged in pairs according to ____________________ and ____________________.

Define the terms triploidy and autosomal trisomy and describe characteristics and consequences of each genetic disorder.

A deletion in the short arm of chromosome 5 is associated with ____ syndrome,which causes intellectual disability,defects in facial development,and an abnormal larynx.

Researchers have suggested that all live-born infants with Turner syndrome are actually ____________________,with both 46,XX and 45,X cells present in their bodies.

A Perspective on Human Genetics

Cells and Cell Division

Transmission of Genes from Generation to Generation

Pedigree Analysis in Human Genetics

The Inheritance of Complex Traits

Development and Sex Determination

The Structure - Replication - and Chromosomal Organization of DNA

Gene Expression and Gene Regulation

From Proteins to Phenotypes

Genome Alterations - Mutation and Epigenetics

Genes and Cancer

An Introduction to Genetic Technology

Biotechnology and Society

Genomes and Genomics

Reproductive Technology - Genetic Testing - and Gene Therapy

Genes and The Immune System

Genetics of Behavior

Population Genetics and Human Evolution

Filters

Fragile sites appear as or at specific sites on a chromosome.

When constructing a karyotype,the chromosome images are arranged in pairs according to and .