A) A mutation is harmful.
B) Mutations lead to changes in protein function.
C) Changes in DNA lead to changes in protein function.
D) A change in the DNA may change a protein's shape and function.
E) A change in DNA will lead to cancer.
Correct Answer
verified
Correct Answer
verified
A) apoptosis.
B) endocytosis.
C) cytokinesis.
D) cytolysis.
E) mitosis.
Correct Answer
verified
Correct Answer
verified
A) transcription.
B) translation.
C) replication.
D) regulation.
E) complementary base pairing.
Correct Answer
verified
Correct Answer
verified
A) Identify likely drug sources,test chemicals on cultured cells,select the most effective chemical,convert chemical into a form for delivery into humans,do clinical trials,get FDA approval for drug sales,scale up drug supply.
B) Identify likely drug sources,select the most effective chemical,convert chemical into a form for delivery into humans,test chemicals on cultured cells,do clinical trials,get FDA approval for drug sales,scale up drug supply.
C) Identify likely drug sources,select the most effective chemical,test chemicals on cultured cells,convert chemical into a form for delivery into humans,do clinical trials,scale up drug supply,get FDA approval for drug sales.
D) Get FDA approval for drug sales,identify likely drug sources,test chemicals on cultured cells,select the most effective chemical,convert chemical into a form for delivery into humans,do clinical trials,scale up drug supply.
E) Get FDA approval for drug sales,identify likely drug sources,test chemicals on cultured cells,do clinical trials,select the most effective chemical,convert chemical into a form for delivery into humans,scale up drug supply.
Correct Answer
verified
Correct Answer
verified
A) replacing thymine with uracil when making RNA
B) deleting a portion of a gene
C) replacing thymine with guanine when copying DNA
D) inserting three base pairs into a gene
E) inserting one base pair into a gene
Correct Answer
verified
Correct Answer
verified
A) a mutation in a sperm cell
B) a mutation in an egg cell
C) a mutation in an embryo
D) a mutation in the brain
E) All of the above except D.
Correct Answer
verified
Correct Answer
verified
A) proceeds until apoptosis.
B) is regulated by the cell cycle.
C) progresses at a predicted rate.
D) is regulated by checkpoints.
E) accumulates DNA damage.
Correct Answer
verified
Correct Answer
verified
A) any section of DNA.
B) a gene.
C) a specific section of a chromosome.
D) an alternate version of a gene.
E) a pair of genes.
Correct Answer
verified
Correct Answer
verified
A) Women with just one abnormal BRCA allele are less likely to develop skin cancer than women with no abnormal alleles.
B) Women with two abnormal BRCA alleles are less likely to develop skin cancer than women with no abnormal alleles.
C) Women with just one abnormal BRCA allele are more likely to develop cancer than women with no abnormal alleles.
D) Women with just one abnormal BRCA allele are more likely to develop ovarian cancer than women with two abnormal alleles.
E) Women with two abnormal BRCA alleles are less likely to develop breast cancer than women with no abnormal alleles.
Correct Answer
verified
Correct Answer
verified
A) liver
B) lung
C) ovarian
D) skin
E) bone
Correct Answer
verified
Correct Answer
verified
A) ultraviolet light
B) alcohol
C) charred food
D) smoking
E) None of the above;all are known carcinogens
Correct Answer
verified
Correct Answer
verified
A) The shape of the protein may be different.
B) The protein may function differently.
C) The protein may cause a disease or illness.
D) The protein may not function at all.
E) The protein may be repaired by enzymes.
Correct Answer
verified
Correct Answer
verified
A) cancer cells.
B) cells that become tumors.
C) cells that become eggs.
D) cells that become sperm.
E) cells that do not become reproductive cells.
Correct Answer
verified
Correct Answer
verified
A) Predisposition does not increase the chances that other risk factors will lead to the progression of cancer.
B) All inherited alleles that are associated with cancer cause childhood cancers.
C) Cancer cannot be truly inherited,but certain alleles weaken the normal control points that prevent cancer,and this causes cancer to appear earlier in life.
D) Younger people are exposed to more risk factors than older people.
E) all of these
Correct Answer
verified
Correct Answer
verified
A) We have more than two copies of every gene.
B) Cell division is controlled by many proteins,not just one.
C) We have two copies of every gene.
D) Nearby cells will repair the mutation.
E) The cell has to divide more times to become cancerous.
Correct Answer
verified
Correct Answer
verified
A) many female relatives who were diagnosed with breast cancer in their 70s
B) many relatives with skin cancer
C) many relatives diagnosed with skin cancer at an early age
D) many female relatives diagnosed with breast cancer at an early age
E) many female relatives with both early breast cancer and ovarian cancer
Correct Answer
verified
Correct Answer
verified
A) All mutagens are carcinogens.
B) All carcinogens are mutagens.
C) Carcinogens are any substance that damages DNA and can lead to cancer.
D) B and C
E) None of the above;they are the same thing with different names.
Correct Answer
verified
Correct Answer
verified
A) Older people have more genes than younger people,so the tendency for the genes to be mutated increases.
B) Cells become more fragile and die more rapidly as people age.
C) Older people tend to smoke,which is a carcinogen and causes cancer.
D) Older people have had more time to accumulate mutations from various sources.
E) Older DNA is more susceptible to mutation than younger DNA.
Correct Answer
verified
Correct Answer
verified
A) white carnations have different DNA sequences than red carnations.
B) white carnations and red carnations have somewhat different proteins.
C) a carnation plant could have one copy of the white allele and one copy of the red allele.
D) a carnation plant could have two copies of the white allele and two copies of the red allele.
E) All of the above.
Correct Answer
verified
Correct Answer
verified
A) People who have inherited high-risk mutations start life with at least one predisposing mutation,so they require fewer additional mutations.
B) People who have inherited high-risk mutations always have other environmental risk factors putting them at higher risk for developing cancer at a younger age.
C) People with inheritable high-risk mutations start expressing the mutated genes at a younger age.
D) The inherited mutations cause new mutations to occur more easily.
E) All the above.
Correct Answer
verified
Correct Answer
verified
Showing 81 - 100 of 171
Related Exams