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WorksheetsChapter 11 Review
Total questions: 20
Worksheet time: 21mins
How would you describe the structure of a DNA molecule?
ladder
double helix
chain
What does DNA stand for?
deoxyribonucleic acid
dinitrogen monoxide
deletions and additions
What are the four nitrogenous bases of DNA?
adenine, thylakoids, cloroplasts, glucose
uracil, nitrogen, phosphate
adenine, thymine, cytosine, guanine
A nucleotide is made up of sugar, phosphate, and a(n) ______________.
DNA ligase
RNA polymerase
uracil
nitrogenous base
During ___________, DNA is added to a cell.
translation
transcription
transformation
replication
Adenine pairs with?
thymine
guanine
cytosine
Cytosine pairs with?
adenine
thymine
guanine
DNA replication begins in area of DNA molecules called _______________.
template
origins of replication
substitution
DNA beginnings
A virus that infects bacteria is a ____________.
bacteriophage
parasite
capsid
mutagen
DNA ligase
causes disease or an unhealthy condition by introducing germs and viruses
is the sequence of DNA that signals the end of transcription
is an RNA molecule that brings amino acids during translation
connects the pieces of a new DNA strand
A pattern used for copying new DNA molecules.
substitution
template
translation
Do introns or extrons produce proteins during RNA splicing?
introns
extrons
True or False: Mutations are changes in a DNA sequence.
True
False
The physical or chemical material that cause changes in DNA
anticodon
lymphocyte
mutagen
gene
What are the two structures of a virus?
capsid and genetic material
nucleus and cell membrane
flagella and DNA
plasmid and enzymes
What is an animal's natural defense system against disease?
vaccines
infection
immune system
biotechnology
What is a person who specifically studies biotechnology?
geologist
scientist
biologist
biotechnologist
A genetically modified food is ________________
a dangerous food that should not be eaten
a food product with genes that have been changed
a food product that can cause cancer or other illnesses
Describe Nonspecific Defense.
The body's surface defenses against pathogens including the skin, mucus, and inflammatory response.
The internal immune system which fights disease.
A network of small vessels and organs to regulate internal body functions.
The two types of white blood cells associated with Specific Defense.
white blood cells and red blood cells
B lympocytes and T lymphoctes
T cells and macrophages
