Chapter 18 (with a mix of 17 and 19 and a dash of 20 and 21) Campbell Biology

Question 1

What RNA base pairs to which DNA base?

Accepted Answer

U;A

Question 2

Where do you plug in the negative current?

Accepted Answer

at the picture's top

Question 3

Bacteria can transcribe and translate human genes to produce functional human proteins because

Accepted Answer

genetic code is nearly universal

Question 4

Estimate how many true mammals are in this picture? be quick ;)

Accepted Answer

21, 22, 5, 32

Question 5

In a eukayotic cell, transcription takes place...

Accepted Answer

in the nucleus

Question 6

Methylation of the DNA...

Accepted Answer

Inhibits transcription because it packs the DNA together

Question 7

What is this process and what does it do?

Accepted Answer

PCR; DNA amplification

Question 8

RFLP or restriction fragment length polymorphism....

Accepted Answer

quick interlude of some one explaining this?

Question 9

The purpose of siRNA and miRNA is to...

Accepted Answer

regulate mRNA

Question 10

What do bacteria lack?

Accepted Answer

transcription factors

Question 11

Genetic information in eukaryotic cells is transferred to the cytoplasm in the form of...

Accepted Answer

RNA

Question 12

What is the origin of the phospholipid membrane that envelopes many animal viruses?

Accepted Answer

it's stolen from the host cel but has some viral proteins

Question 13

What mRna codon would be made from the DNA triplet CGT?

Accepted Answer

GCA

Question 14

What should this remind you of?

Accepted Answer

Sanger

Question 15

Birds act a natural ________ for the influenza A virus.

Accepted Answer

resevoir

Question 16

Reverse transcription, carried out by retro viruses, is the process by which_________.

Accepted Answer

RNA information is copied into DNA

Question 17

In the lytic life cycle of phages __________.

Accepted Answer

the cell typically dies, releasing many copies of the virus

Question 18

Which is most like the kind of vaccine used to build immunity for viral diseases?

Accepted Answer

heat killed pathogenic

Question 19

These are proteins that enable bonding of RNA polymerase to a gene

Accepted Answer

transcription factors

Question 20

If you get points on this question I personally guarantee you an A on you next test...

Accepted Answer

~

Question 21

The protein shell enclosing the viral genome is called a

Accepted Answer

capsid

Question 22

If you are a protein and are tagged with ubiquitin...

Accepted Answer

Proteasome is about to come cut you up real nice

Question 23

In what stage of gene expression could the nucleotides GAT pair with nucleotides CUA?

Accepted Answer

transcription

Question 24

Which measurement contains the smallest molecules?

Accepted Answer

two-hundred one and zero tenths

Question 25

True or false: the lac operon is usually off but turns on when an inducer binds to a repressor

Accepted Answer

true

Question 26

A phage that inserts itself into the host DNA is called __________.

Accepted Answer

lysogenic

Question 27

T or F: The specialized cells are a result of slight modifications to each cells genome.

Accepted Answer

F: the difference is caused by differential gene expression

Question 28

The phage cycle that kills the host cell is ____, and phages that reproduces this way are ____.

Accepted Answer

lytic;virulent

Question 29

In RNA splicing the ______ are cut out and kept inside the nucleus

Accepted Answer

introns

Question 30

Restriction enzymes....

Accepted Answer

only cut specific restriction sites

Question 31

Which of the following catalyzes the linkages between ribonucleotides to form RNA?

Accepted Answer

RNA polymerase

Question 32

Epigenetic inheritance is

Accepted Answer

is not directly expressed through nucleotide sequencing

Question 33

the number of nucleotide needed for an amino acid is ___ and this unit is called a(n) ______

Accepted Answer

three; codon

Question 34

DNA Methylation is to _______ as histone acetylation is to ________

Accepted Answer

packing together; loosening up

Question 35

Enhancers are more common in

Accepted Answer

eukaryotes

Question 36

Viruses can vary with respect to all of the following characteristics except __________.

Accepted Answer

the presence or absence of metabolic machinery

Question 37

What is the difference between siRNA and miRNA?

Accepted Answer

miRNA forms from a hairpin; siRNA forms from a double strand

Question 38

How many nucleotides are needed to code for a protein with 450 amino acids?

Accepted Answer

at least 1,350

Question 39

Prions are _____ that are thought to be caused by ________.

Accepted Answer

abnormally shaped proteins;prions making proteins misfold

Question 40

Select the correct pairing of operon with its regulatory protein

Accepted Answer

lac, inducible, trp, respressible

Question 41

When a virus infects an E. coli cell, what part of the virus enters the bacterial cytoplasm?

Accepted Answer

only the nucleic acid

Question 42

These are segments of noncoding DNA that serve as bonding sites for transcription factors

Accepted Answer

control elements

Question 43

Methylation of DNA best supports which of the following

Accepted Answer

genomic imprinting

Question 44

What how do the levels of tryptophan regulate metabolic pathways?

Accepted Answer

feedback inhibition

Question 45

What kind of mutation is this?

Accepted Answer

point mutation, missence mutation

Question 46

When comparing DNA and RNA viruses, which mutate more quickly, and why?

Accepted Answer

I MUST BE THE ANSWER I'M IN ALL CAPS, RNA viruses because no proofreading is done on RNA molecules

Question 47

Which of the following is true?

Accepted Answer

3 DNA base code for 1 amino acid

Question 48

Circular RNA molecules that function like a virus in plants are termed __________.

Accepted Answer

viroids

Question 49

If I told you this was made of nucleotides you could conclude it is a ______.

Accepted Answer

BAC

Question 50

What is this picture of?

Accepted Answer

mRNA regulation

Question 51

Restriction enzymes help defend bacteria against viral infections by _________.

Accepted Answer

cutting viral DNA once is has entered the cell

Question 52

Which operon would most likely be used in a synthesis pathway?

Accepted Answer

trp

Question 53

True or false: YOU CAN DO THIS!

Accepted Answer

truuuuuuue man, true, es la verdad, they believe in me, they really believe in me!

Question 54

The original plasmid is called _____.

Accepted Answer

the cloning vector

Question 55

How do retroviruses, such as HIV, differ from other viruses?

Accepted Answer

they can transcribe a DNA copy from an RNA template

Question 56

Viruses that infect bacteria are called __________.

Accepted Answer

bacteriophages

Question 57

During the transcription of a given portion of a DNA molecule...

Accepted Answer

mRNA is synthesized on only one of the chains

Question 58

which step happens between transcription and translation?

Accepted Answer

RNA splicing

Chapter 18 (with a mix of 17 and 19 and a dash of 20 and 21) Campbell Biology

Questions 58

Chapter 18 (with a mix of 17 and 19 and a dash of 20 and 21) Campbell Biology

Questions 58