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Study for Final!

The amount of adenine is equal to the amount of thymine, and the amount of guanine is equal to the amount of cytosine

Which of the following statements regarding a DNA double helix is always true?


The transfer of genetic information from DNA to RNA is called

4 amino acids

We would expect that a 12-nucleotide sequence will direct the production of a polypeptide that consists of

50% of the parent DNA

When one DNA molecule is copied to make two DNA molecules, the new DNA contains

Helps the virus enter the cell

The envelope of a flu virus

Herpesviruses reproduce inside the host cell's mitochondria

Which of the following statements about herpesviruses is false?

There is no known treatment or cure for prion infections

Which of the following statements about the treatment or prevention for a prion infection is true?

Only the DNA

When a T2 bacteriophage infects an Escherichia coli cell, which part of the phage enters the bacterial cytoplasm?

Uses each strand of a DNA molecule as a template for the creation of a new strand

DNA replication

3 origins and 6 replication forks

How many origins of replication and how many replication forks are shown?


The monomers of DNA and RNA are

The cycle typically lads to the lysis of the host cell

Which of the following features characterizes the lytic cycle of a viral infection?

Virus locates host cell --> penetrates cell membrane --> enters nucleus --> alters host cell DNA --> host cell produces copies of virus

Which of the following shows the steps of a viral infection in the proper order?

The dod idn ote at

Consider the following sentence: "The dog did not eat." Which of the following variations of this sentence is most like a reading frame mutation?

The conversion of genetic information from the language of nucleic acids to the language of proteins

Which of the following takes place during translation?

Transcription occurs in the cytoplasm of eukaryotic cells

Which of the following statements regarding the flow of genetic information is false?

Increase their genetic diversity

Conjugation, transformation, and transduction are all ways that bacteria

RNA uses the sugar dextrose

Which of the following statements regarding RNA is false?

Shorten the time necessary for DNA replication

Multiple origins of replication on the DNA molecules of eukaryotic cells serve to

A twisted rope ladder

The shape of a DNA moleucle is most like

A virus is generally considered to be alive because it is cellular and can reproduce on its own

Which of the following statements regarding viruses is false?

A retrovirus

What kind of virus is HIV?


A protein shell enclosing a viral genome is know as a(n)

The fact that some amino acids are specified from more than one codon

A base substitution mutation in a gene does not always result in a different protein. Which of the following factors could account for this?


One type of virus that infects bacteria is called a

Easy viral transmission from person to person

What will be the most likely cause of a new avian flue pandemic like the 1918-1919 flu pandemic that killed approximately 40 million people worldwide?

DNA template

Which of the following is not needed in order for translation to occur?

In the cytoplasm

Where do transcription and translation occur in prokaryotic cells?

R plasmids

In many bacteria, genes that confer resistance to antibiotics are carried on

Because DNA polymerases can only add nucleotides to the 3' end of the growing molecule

Why does a DNA strand grow only in the 5' to 3' direction?


A friend accidentally sends an email to you that contains a computer virus form his computer. Without knowing it, you infect your computer with the virus when you open the email. this process of spreading the computer virus using emails is most like which of the following processes

A mutation

Any change in the nucleotide sequence of DNA is called

The doe did not eat

Consider the following sentence: "The dog did not eat." Which of the following variations of this sentence is most like a base substitution mutation?

The DNA molecule would have irregular widths along its length

How would the shape of a DNA molecule change if adenine paired with guanine and cytosine paried with thymine?


A physical or chemical agent that changes the nucleotide sequence of DNA is called a(n)


What nucleotide sequence would be found on the partner DNA strand of the strand shown? (ACTGT)

Heavy use of antibiotics in medicine and in agriculture

Which of the following human activities has contributed to an increase in the number of bacteria having R plasmids?

DNA --> RNA --> protein

Which of the following options best depicts the flow of information when a gene directs the synthesis of a cellular component?

T cells

HIV does the greatest damage to

Exons are spliced together

Which of the following statements about eukaryotic RNA is true?


The directions for each amino acid in a polypeptide are indicated by a codon that consists of ______ nucleotide(s) in an RNA molecule

DNA uses the nitrogenous base uracil

Which of the following statements regarding DNA is false?


All proteins (amino acid chains) begin with ______


All proteins (amino acid chains) end with ______

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