Question 1

A human cell that has 69 chromosomes is

Accepted Answer

A)  aneuploid. 
B)  triploid. 
C)  diploid. 
D)  euploid. 
A)  aneuploid. 
B)  triploid. 
C)  diploid. 
D)  euploid.

Question 2

Gene expression profiling is used to compare and contrast how different types of cells function.

Accepted Answer

A) True 
 B)False

Question 3

The nuances of eye color arise from

Accepted Answer

A)  the numbers of rods and cones in the retina. 
B)  the way pigments are deposited in the iris. 
C)  how much vitamin A is in a person's diet. 
D)  multiple alleles of at least 10 genes. 
A)  the numbers of rods and cones in the retina. 
B)  the way pigments are deposited in the iris. 
C)  how much vitamin A is in a person's diet. 
D)  multiple alleles of at least 10 genes.

Question 4

Genetics is the study of the inheritance of traits and their variability.

Accepted Answer

A) True 
 B)False

Question 5

Genetics is the study of

Accepted Answer

A)  sperm and eggs. 
B)  the effect of the environment on health. 
C)  inheritance of characteristics. 
D)  DNA. 
A)  sperm and eggs. 
B)  the effect of the environment on health. 
C)  inheritance of characteristics. 
D)  DNA.

Question 6

A karyotype is

Accepted Answer

A)  a diagram that represents family relationships. 
B)  a size-ordered chart of chromosomes. 
C)  a genome sequence. 
D)  a website that lists genes and the proteins they encode. 
A)  a diagram that represents family relationships. 
B)  a size-ordered chart of chromosomes. 
C)  a genome sequence. 
D)  a website that lists genes and the proteins they encode.

Question 7

The human genome consists of

Accepted Answer

A)  DNA, most of which encodes protein. 
B)  DNA, most of which does not encode protein. 
C)  protein, most of which encodes DNA. 
D)  protein, most of which does not encode DNA. 
A)  DNA, most of which encodes protein. 
B)  DNA, most of which does not encode protein. 
C)  protein, most of which encodes DNA. 
D)  protein, most of which does not encode DNA.

Question 8

A heterozygote has identical alleles of a gene and a homozygote has different alleles.

Accepted Answer

A) True 
 B)False

Question 9

A pharmacogenetic test can reveal whether a certain drug will be effective and/or cause adverse effects in a particular person.

Accepted Answer

A) True 
 B)False

Question 10

Chromosomes carry genes and genes carry genomes.

Accepted Answer

A) True 
 B)False

Question 11

Freckles are a phenotype and the allele combination that causes a clotting disorder is a genotype.

Accepted Answer

A) True 
 B)False

Question 12

In genomic imprinting,

Accepted Answer

A)  genes on the Y chromosome are only expressed in males. 
B)  children copy their parents' behavior. 
C)  the same allele has a different effect if inherited from the mother or father. 
D)  a trait affects a structure found only in one sex. 
A)  genes on the Y chromosome are only expressed in males. 
B)  children copy their parents' behavior. 
C)  the same allele has a different effect if inherited from the mother or father. 
D)  a trait affects a structure found only in one sex.

Question 13

Gene expression profiling is different from determining a genome sequence.

Accepted Answer

A) True 
 B)False

Question 14

Gene expression profiling produces karyotypes.

Accepted Answer

A) True 
 B)False

Question 15

An allele that is not expressed in the heterozygous condition is

Accepted Answer

A)  recessive. 
B)  dominant. 
C)  autosomal. 
D)  codominant. 
A)  recessive. 
B)  dominant. 
C)  autosomal. 
D)  codominant.

Question 16

The approximate number of protein-encoding genes on the Y chromosome is

Accepted Answer

A)  >1,500. 
B)  231. 
C)  10. 
D)  greater in males than females. 
A)  >1,500. 
B)  231. 
C)  10. 
D)  greater in males than females.

Question 17

Antonio is colorblind. His partner Emilia is not colorblind nor is she a carrier (heterozygote) for colorblindness. The offspring of this couple would

Accepted Answer

A)  be sons with colorblindness and daughters with color vision. 
B)  be colorblind daughters and sons with normal color vision. 
C)  all be colorblind. 
D)  all have normal color vision. 
A)  be sons with colorblindness and daughters with color vision. 
B)  be colorblind daughters and sons with normal color vision. 
C)  all be colorblind. 
D)  all have normal color vision.

Question 18

A multifactorial trait is determined by many environmental factors, but not necessarily genetic influences.

Accepted Answer

A) True 
 B)False

Question 19

In incomplete dominance,

Accepted Answer

A)  the heterozygous phenotype is intermediate between that of either homozygote. 
B)  one allele masks the effect of the other. 
C)  one allele is inactive. 
D)  only one sex is affected. 
A)  the heterozygous phenotype is intermediate between that of either homozygote. 
B)  one allele masks the effect of the other. 
C)  one allele is inactive. 
D)  only one sex is affected.

Question 20

A human cell that has 47 chromosomes is

Accepted Answer

A)  monosomic. 
B)  euploid. 
C)  polyploid. 
D)  trisomic. 
A)  monosomic. 
B)  euploid. 
C)  polyploid. 
D)  trisomic.

Exam 24: Genetics and Genomics

A human cell that has 69 chromosomes is

Gene expression profiling is used to compare and contrast how different types of cells function.

The nuances of eye color arise from

Genetics is the study of the inheritance of traits and their variability.

Genetics is the study of

A karyotype is

The human genome consists of

A heterozygote has identical alleles of a gene and a homozygote has different alleles.

A pharmacogenetic test can reveal whether a certain drug will be effective and/or cause adverse effects in a particular person.

Chromosomes carry genes and genes carry genomes.

Freckles are a phenotype and the allele combination that causes a clotting disorder is a genotype.

In genomic imprinting,

Gene expression profiling is different from determining a genome sequence.

Gene expression profiling produces karyotypes.

An allele that is not expressed in the heterozygous condition is

The approximate number of protein-encoding genes on the Y chromosome is

Antonio is colorblind. His partner Emilia is not colorblind nor is she a carrier (heterozygote) for colorblindness. The offspring of this couple would

A multifactorial trait is determined by many environmental factors, but not necessarily genetic influences.

In incomplete dominance,

A human cell that has 47 chromosomes is

Introduction to Human Anatomy and Physiology

Chemical Basis of Life

Cells

Cellular Metabolism

Tissues

Integumentary System

Skeletal System

Joints of the Skeletal System

Muscular System

Nervous System I: Basic Structure and Function

Nervous System II: Division of the Nervous System

Nervous System III: Senses

Endocrine System

Blood

Cardiovascular System

Lymphatic System and Immunity

Digestive System

Nutrition and Metabolism

Respiratory System

Urinary System

Water, Electrolyte, and Acid-Based Balance

Reproductive Systems

Pregnancy, Growth, and Development

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