Human Genetics Final Exam
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- 1.Humans have ___pairs of chromosomes
- A.
16
- B.
23
- C.
38
- D.
46
- 2.A genotype refers to
- A.
Particular allele combinations
- B.
Expression patterns of certain genes
- C.
The environmental components of a trait
- D.
The number of chromosomes
- 3.
- A.
Cure cancer
- B.
Identify new drug targets
- C.
Cure all diseases that involve the same set of genes
- D.
Discover how our long-ago ancestors were related
- 4.The difference between phenotype and genotype is that
- A.
Phenotype refers to the genetic instructions and genotype to their expression
- B.
Genotype refers to the genetic instructions and phenotype to their expression
- C.
The phenotype is RNA and the genotype is DNA
- D.
The phenotype is DNA and the genotype is RNA
- 5.In which choice are the entries listed from smallest to largest?
- A.
Cell-genome-gene-DNA building block
- B.
DNA building block-gene-chromosome-genome
- C.
DNA building block-RNA building block-protein
- D.
Gene-cell-DNA-genome
- 6.One way that single-gene diseases differ from other diseases is that
- A.
They most often affect people late in life
- B.
They affect consecutive generations
- C.
They occur at the same frequency in every population
- D.
It is possible to predict occurrence in specific relatives
- 7.Genetics is teh study of
- A.
Variation of inherited traits
- B.
How organisms reproduce
- C.
How life orginated
- D.
How the environment causes disease
- 8.Kanisha and Jamal receive their grades on thier physics midterms. Kanisha got an A, but Jamal got a D. "You must have the physics gene," Jamal said. "I don't. I might as well not bother studying." Jamal's attitude illustrates the idea of
- A.
Genetic discrimination
- B.
Genetic determinism
- C.
Genetic handicap
- D.
Genetic engineering
- 9.Neka is part Native American. He has several relatives who have alcoholism. Neeka takes a direct-to-consumer genetic test panel and discovers that he has inherited gene variants that are associated with increased risk of alcoholism. He reports these facts during an interview for purchasing a life insurance policy, because he thinks that the Genetic Information Nondiscrimination Act will protect him form being denied life insurance based on results of a genetic test. Alas, Neka is denied coverage, because
- A.
the law does not protect Native Americans.
- B.
The law does not protect people of mixed lineage.
- C.
the law only applies to health insurance and employers, not life insurance.
- D.
. the law does not apply to direct-to-consumer tests.
- 10.
Which sequence of events illustrates the steps of signal transduction? - A.
First messenger to receptor molecules to second messenger to cellular response
- B.
Receptor molecules to first messenger to second messenger to cellular response
- C.
First messenger to second messenger to receptor molecules to cellular response
- D.
First messenger to second messenger to cellular responses to receptor
- 11.During apoptosis, caspases
- A.
Stimulate synthesis of carcinogens.
- B.
activate enzymes that cut DNA into same-sized pieces.
- C.
Cause mitochondria to replicate their DNA.
- D.
Alter the cell surface so that viruses can more easily enter.
- 12.The organelles that contain DNA are the
- A.
Golgi apparatus and lysosome.
- B.
Mitochondrion and plasma membrane.
- C.
Nucleus and mitochondrion.
- D.
Nuclear lamina and endoplasmic reticulum.
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