_ is a disease caused by uncontrolled cell division
AIDS
cancer
syphillis
osteoarthritis
cancer
a mass of cells accumulated at a place in body resulting in cancer is called?
tissue
Tumor
pile
organ
Tumor
Tumor that is more likely to spread and cause death is called?
Benign Tumor
Malignant Tumor
Both of these
None of these
Malignant Tumor
The spread of cancer cells around the body occurs through _
Meiosis
mitosis
metastasis
None of these
metastasis
A _ is a change from the original DNA strand
Replication
Translation
transcription
mutation
mutation
Spontaneous mutations result from uncorrected mistakes by?
Amylase
lipase
DNA polymerase
DNA ligase
DNA polymerase
the enzyme that copies DNA is?
Amylase
lipase
DNA polymerase
DNA ligase
DNA polymerase
_ result from environmental agents that increase the error rate of DNA polymerase
Induced mutations
Spontaneous mutation
Both of these
None of these
Induced mutations
_ result from uncorrected mistakes by DNA polymerase
Induced mutations
Spontaneous mutation
Both of these
None of these
Spontaneous mutation
Induced mutations result from environmental agents that increase the error rate of _?
Amylase
lipase
DNA polymerase
DNA ligase
DNA polymerase
Anything that increases the error rate of DNA polymerase is a _?
mutagen
carcinogen
Both of these
None of these
mutagen
Which of these is a mutagen?
X-rays
ultraviolet light
formaldehyde
All of these
All of these
When the wrong nucleotides are paired together in the parent DNA, a _ occurs
Insertion
Base substitution
Deletion
None of these
Base substitution
If the parent DNA molecule has a nucleotide containing thymine (T), then DNA polymerase should bring in a nucleotide containing _ for the new strand of DNA
guanine
adenine
uracil
cytosine
adenine
If the parent DNA molecule has a nucleotide containing _, then DNA polymerase should bring in a nucleotide containing adenine for the new strand of DNA
guanine
uracil
cytosine
thymine
thymine
If only one nucleotide gets changed, the mutation is called a _ mutation
single
point
Pin
dot
point
_ mutations have no effect on the protein or organism
Silent
Missense
point
Nonsense
Silent
_ Mutations change the amino acids in the protein
Silent
Missense
point
Nonsense
Missense
__ mutations introduce a stop codon into the mRNA, preventing the protein from being made
Silent
Missense
point
Nonsense
Nonsense
Nonsense mutations may result in _?
cystic fibrosis
Duchenne’s muscular dystrophy
thalassemia
All of these
All of these
When DNA polymerase fails to copy all the DNA in the parent strand, that’s a _
Insertion
Base substitution
Deletion
None of these
Deletion
Mutations that change the way in which the codons are read are called _ mutations
Silent
Missense
point
frameshift
frameshift
Deletions of _ nucleotides result in the deletion of one amino acid
1
2
3
None of these
3
Deletions of three nucleotides result in the deletion of _ amino acid
1
2
3
None of these
1
Serious diseases such as _ result from deletions
cystic fibrosis
Duchenne muscular dystrophy
Both of these
osteoarthritis
Both of these
When DNA polymerase slips and copies nucleotides in the parent DNA more than once, an _ occurs
Insertion
Base substitution
Deletion
None of these
Insertion
_ disease, an illness that causes the nervous system to degenerate starting when a person is in his 30s or 40s, is caused by insertions of the sequence
Huntington’s
osteoarthritis
syphillis
AIDS
Huntington’s
Huntington’s disease, an illness that causes the nervous system to degenerate starting when a person is in his 30s or 40s, is caused by _ of the sequence of DNA
Insertion
Base substitution
Deletion
None of these
Insertion
_ is a disease that clogs the lungs and smaller passageways of the body with mucus
osteoarthritis
Syphillis
Cystic fibrosis
AIDS
Cystic fibrosis
Cystic fibrosis is caused by mutation in?
insulin
Collagen
Keratin
CFTR
CFTR
Normal CFTR protein is found in the _ of people’s cells
Mitochondria
Golgi apparatus
plasma membranes
cytoplasm
plasma membranes
Normal CFTR protein is found in the plasma membranes of people’s cells, where it helps move _ across the membrane
chloride
cuprous
Ferrous
carbide
chloride
The most common mutation in CFTR is a deletion of _ nucleotides, resulting in the loss of one amino acid
1
3
5
7
3
DNA polymerase occasionally makes uncorrected mistakes when copying a cell’s genetic information during DNA replication. These mistakes are called?
Glycolysis
hydrolysis
spontaneous mutations
phenotypes
spontaneous mutations
__ introduce changes into the genetic code
Glycolysis
hydrolysis
spontaneous mutations
None of these
spontaneous mutations
_ occurs when homologous chromosomes separate during anaphase I of meiosis
hydrolysis
Independent assortment
glycolysis
None of these
Independent assortment