Question 1

DNA regions that do not code for protein

Accepted Answer

A)  make up a limited portion of chromosomal DNA. 
B)  have no function. 
C)  are nearly identical from person to person. 
D)  are segregated on a few large chromosomes. 
E)  can control how and when coding regions are used. 
A)  make up a limited portion of chromosomal DNA. 
B)  have no function. 
C)  are nearly identical from person to person. 
D)  are segregated on a few large chromosomes. 
E)  can control how and when coding regions are used.

Question 2

Explain what is meant by semiconservative duplication of DNA.

Accepted Answer

Semiconservative duplication o

Question 3

What is the major drawback of STR profile comparisons,especially with respect to use in forensics?

Accepted Answer

In order to make any conclusions,you mus

Question 4

What is the significance of the "23rd pair" of chromosomes in humans?

Accepted Answer

A)  It is inherited only from the mother. 
B)  It is inherited only from the father. 
C)  It doesn't exist; there are only 22 pairs. 
D)  It doesn't contain thymine. 
E)  It determines a person's sex. 
A)  It is inherited only from the mother. 
B)  It is inherited only from the father. 
C)  It doesn't exist; there are only 22 pairs. 
D)  It doesn't contain thymine. 
E)  It determines a person's sex.

Question 5

What is now commonly used by forensic scientists as evidence in criminal cases to free people wrongly convicted of crimes?

Accepted Answer

A)  RNA profile 
B)  DNA profile 
C)  protein profile 
D)  carbohydrate profile 
E)  expert witnesses 
A)  RNA profile 
B)  DNA profile 
C)  protein profile 
D)  carbohydrate profile 
E)  expert witnesses

Question 6

The "coding" region of DNA is the DNA sequence that

Accepted Answer

A)  encodes a specific protein sequence. 
B)  is unique among individuals. 
C)  provides a genetic "fingerprint," because of individual variation. 
D)  encodes a specific carbohydrate sequence. 
E)  encodes the double-helix shape. 
A)  encodes a specific protein sequence. 
B)  is unique among individuals. 
C)  provides a genetic "fingerprint," because of individual variation. 
D)  encodes a specific carbohydrate sequence. 
E)  encodes the double-helix shape.

Question 7

Explain how and why males should be able to trace a direct lineage of male ancestors through analysis of their Y chromosome.

Accepted Answer

The Y chromosome is only passe

Question 8

While studying the cells of a newly discovered fungus,you notice that its organelles resemble those of most eukaryotes,but some of their shapes are a little different.Although you're pretty sure you can identify each organelle,you analyze its chemical composition just to make sure.One organelle is shaped like a ball,and it is composed of proteins,membranes,and nucleic acids.That organelle is most likely the

Accepted Answer

A)  nucleus. 
B)  endoplasmic reticulum. 
C)  chromosome. 
D)  Golgi body. 
E)  lysosome. 
A)  nucleus. 
B)  endoplasmic reticulum. 
C)  chromosome. 
D)  Golgi body. 
E)  lysosome.

Question 9

Explain how DNA PCR analysis has changed modern crime-scene analysis.

Accepted Answer

Many traditional sources of evidence can

Question 10

DNA sequence data on criminals is stored in a database called

Accepted Answer

A)  DNA registry. 
B)  CODIS. 
C)  the Innocence Project. 
D)  Biobank. 
E)  STRbase. 
A)  DNA registry. 
B)  CODIS. 
C)  the Innocence Project. 
D)  Biobank. 
E)  STRbase.

Question 11

You have DNA samples isolated from three separate locations at a crime scene.You have amplified the DNA and run it through CODIS and have no matches.What are your next steps?

Accepted Answer

DNA comparisons are a very useful tool,b

Question 12

The exact ____ of each STR region varies from person to person.

Accepted Answer

The answer of The exact ____ of each STR region...

Question 13

Which of the following statements is least likely to be true?

Accepted Answer

A)  A father and son share some identical sequences of DNA. 
B)  A mother and daughter share some identical sequences of DNA 
C)  A father and daughter share some identical sequences of DNA 
D)  The DNA that codes for human hair is more likely to be similar between genetic siblings than between unrelated individuals. 
E)  A mother and father share more identical sequences with each other than they do with their children. 
A)  A father and son share some identical sequences of DNA. 
B)  A mother and daughter share some identical sequences of DNA 
C)  A father and daughter share some identical sequences of DNA 
D)  The DNA that codes for human hair is more likely to be similar between genetic siblings than between unrelated individuals. 
E)  A mother and father share more identical sequences with each other than they do with their children.

Question 14

When one DNA molecule is duplicated,the resulting two DNA molecules contain

Accepted Answer

A)  one new and one old strand in each. 
B)  two new strands in one and two old strands in the other. 
C)  four new strands in each. 
D)  four old strands in each. 
E)  four new strands in one and four old strands in the other. 
A)  one new and one old strand in each. 
B)  two new strands in one and two old strands in the other. 
C)  four new strands in each. 
D)  four old strands in each. 
E)  four new strands in one and four old strands in the other.

Question 15

Bases holding two single strands of DNA together into a double strand of DNA interact through ___________ bonds.

Accepted Answer

A)  covalent 
B)  hydrogen 
C)  ionic 
D)  chemical 
E)  carbon 
A)  covalent 
B)  hydrogen 
C)  ionic 
D)  chemical 
E)  carbon

Question 16

DNA is made of the following nucleotide bases,EXCEPT

Accepted Answer

A)  adenine. 
B)  guanine. 
C)  phosphate. 
D)  cytosine. 
E)  thymine. 
A)  adenine. 
B)  guanine. 
C)  phosphate. 
D)  cytosine. 
E)  thymine.

Question 17

When performing gel electrophoresis,the STRs are separated by _____,with the ______ones moving the farthest.

Accepted Answer

A)  size; largest 
B)  charge; negative 
C)  charge; positive 
D)  size; smallest 
E)  number of adenines; most adenine-dense 
A)  size; largest 
B)  charge; negative 
C)  charge; positive 
D)  size; smallest 
E)  number of adenines; most adenine-dense

Question 18

How is the structure of a DNA molecule arranged?

Accepted Answer

A)  Each nucleotides' phosphate group binds to the corresponding phosphate group of another nucleotide. 
B)  Each nucleotides' sugar group binds to the corresponding sugar group of another nucleotide. 
C)  Each nucleotides' phosphate group binds to the sugar group of the next nucleotide. 
D)  Each nucleotides' base binds to the next nucleotide base. 
E)  Each nucleotides' base binds to the phosphate group of another nucleotide. 
A)  Each nucleotides' phosphate group binds to the corresponding phosphate group of another nucleotide. 
B)  Each nucleotides' sugar group binds to the corresponding sugar group of another nucleotide. 
C)  Each nucleotides' phosphate group binds to the sugar group of the next nucleotide. 
D)  Each nucleotides' base binds to the next nucleotide base. 
E)  Each nucleotides' base binds to the phosphate group of another nucleotide.

Question 19

PCR amplification of DNA requires

Accepted Answer

A)  DNA, primers, RNA polymerase, and deoxyribonucleotides. 
B)  DNA polymerase and deoxyribonucleotides. 
C)  DNA, primers, DNA polymerase, and deoxyribonucleotides. 
D)  DNA polymerase, deoxyribonucleotides, and primers. 
E)  DNA, primers, RNA polymerase, and ribonucleotides. 
A)  DNA, primers, RNA polymerase, and deoxyribonucleotides. 
B)  DNA polymerase and deoxyribonucleotides. 
C)  DNA, primers, DNA polymerase, and deoxyribonucleotides. 
D)  DNA polymerase, deoxyribonucleotides, and primers. 
E)  DNA, primers, RNA polymerase, and ribonucleotides.

Question 20

What is DNA polymerase?

Accepted Answer

A)  an enzyme that breaks DNA down into fragments 
B)  an enzyme that deletes specific regions of DNA 
C)  an enzyme involved in DNA replication that binds to DNA and facilitates the formation of a new strand of DNA 
D)  an enzyme that allows the chromosomes to coil around proteins so that the chromosomes can fit into the nucleus 
E)  an enzyme that removes the sugar molecule from a nucleotide so that the phosphate groups can be linked together 
A)  an enzyme that breaks DNA down into fragments 
B)  an enzyme that deletes specific regions of DNA 
C)  an enzyme involved in DNA replication that binds to DNA and facilitates the formation of a new strand of DNA 
D)  an enzyme that allows the chromosomes to coil around proteins so that the chromosomes can fit into the nucleus 
E)  an enzyme that removes the sugar molecule from a nucleotide so that the phosphate groups can be linked together

Exam 7: DNA Structure and Replication Biologically Unique

DNA regions that do not code for protein

Explain what is meant by semiconservative duplication of DNA.

What is the major drawback of STR profile comparisons,especially with respect to use in forensics?

What is the significance of the "23rd pair" of chromosomes in humans?

What is now commonly used by forensic scientists as evidence in criminal cases to free people wrongly convicted of crimes?

The "coding" region of DNA is the DNA sequence that

Explain how and why males should be able to trace a direct lineage of male ancestors through analysis of their Y chromosome.

Explain how DNA PCR analysis has changed modern crime-scene analysis.

DNA sequence data on criminals is stored in a database called

You have DNA samples isolated from three separate locations at a crime scene.You have amplified the DNA and run it through CODIS and have no matches.What are your next steps?

The exact ____ of each STR region varies from person to person.

Which of the following statements is least likely to be true?

When one DNA molecule is duplicated,the resulting two DNA molecules contain

Bases holding two single strands of DNA together into a double strand of DNA interact through ___________ bonds.

DNA is made of the following nucleotide bases,EXCEPT

When performing gel electrophoresis,the STRs are separated by _____,with the ______ones moving the farthest.

How is the structure of a DNA molecule arranged?

PCR amplification of DNA requires

What is DNA polymerase?

The Process of Science Java Report

Chemistry and Molecules of Life Mission to Mars

Cell Function and Structure Wonder Drug

Nutrition,metabolism,enzymes the Peanut Butter Project

Energy Flow and Photosynthesis the Future of Fuel

Dietary Energy and Cellular Respiration Supersize Me

Genes to Proteins Medicine From Milk

Cell Division and Mitosis Natures Pharmacy

Mutations and Cancer Fighting Fate

Single-Gene Inheritance and Meiosis Rock for a Cause

Complex Inheritance Qa: Genetics

Stem Cells and Cell Differentiation Grow Your Own

Natural Selection and Adaptation Bugs That Resist Drugs

A: Nonadaptive Evolution and Speciation Urban Evolution

B: Nonadaptive Evolution and Speciation Urban Evolution

Evidence for Evolution a Fish With Fingers

Life on Earth Qa: Evolution

Prokaryotic Diversity Lost City

A: Eukaryotic Diversity Rain Forest Riches

B: Eukaryotic Diversity Rain Forest Riches

Human Evolution Skin Deep

A: Population Ecology on the Tracks of Wolves and Moose

B: Population Ecology on the Tracks of Wolves and Moose

A: Community Ecology Whats Happening to Honey Bees

B: Community Ecology Whats Happening to Honey Bees

A: Ecosystem Ecology the Heat Is on

B: Ecosystem Ecology the Heat Is on

A: Sustainability the Makings of a Green City

B: Sustainability the Makings of a Green City

A: Overview of Physiology Man Versus Mountain

B: Overview of Physiology Man Versus Mountain

Digestive System Drastic Measures

A: Cardiovascular System Death in Bogalusa

B: Cardiovascular System Death in Bogalusa

Respiratory System Peak Performance

A: Central Nervous System Smoke on the Brain

B: Central Nervous System Smoke on the Brain

Reproductive System Too Many Multiples

Immune System Viral Mysteries

A: Plant Physiology

B: Plant Physiology

Filters

When performing gel electrophoresis,the STRs are separated by _,with the __ones moving the farthest.