Psych 111 Practice Test 2
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Practice Test #2 for Psych. Chapters 3 & 4.
- 1.Structures in the cell bodies that are made up of genes are called:
- A.
Genotypes
- B.
Chromosomes
- C.
Phenotypes
- D.
DNA
- 2.Complete the Sequence: Human Body -> Cell -> _________ -> __________ -> ___________
- A.
Genes, DNA, Chromosomes
- B.
DNA, Chromosomes, Genes
- C.
Chromosomes, DNA, Genes
- D.
Genes, Chromosomes, DNA
- 3.How many pairs of chromosomes are in a normal human?
- A.
23
- B.
24
- C.
12
- D.
13
- E.
None of the Above
- 4.Genes are segments are DNA that are involved in what?
- A.
Determining whether someone is a twin or not
- B.
Estimating heritability
- C.
Genes do nothing
- D.
Producing chemicals that make up the structure of cells and direct their activities
- 5.According to the Human Genome Project, how many genes do humans approximately have?
- A.
13000
- B.
18000
- C.
30000
- D.
36000
- 6.Which of the following is not an example of an Allele?
- A.
Dominant Gene
- B.
Recessive Gene
- C.
Genotype
- D.
Red Hair Gene
- 7.The Phenotype is:
- A.
The combination of two alleles that makes up an organism
- B.
A chemical that gives a specific social response in members of the same species
- C.
Observable physical characteristics resulting from genes and the environment
- D.
A gene that is expressed in the offspring whenever it is present.
- 8.Bob has the alleles for Blue Hair (Dominant) and Pink Hair (Recessive). Which of the following are true about Bob (check all that apply).
- A.
Bob's Hair Color is Pink
- B.
Bob's Hair Color is Blue
- C.
Bob's Phenotype is Blue
- D.
Bob's Phenotype is Pink
- E.
Bob's Genotype is homozygous
- F.
Bob's Genotype is heterozygous
- G.
Bob probably looks pretty weird
- 9.The male has two X chromosomes and the Female has an X and Y chromosome.
- A.
True
- B.
False
- 10.Which of the following statements is genetically correct? (Choose all that apply)
- A.
Asians are superior at Math
- B.
White men can't jump
- C.
Women's brains are dumber than men's brains.
- D.
All of the above
- E.
None of the above
- 11.Who used Pea Plants to learn about Genotypes and Phenotypes?
- A.
Mendel
- B.
Mendelev
- C.
Luscher
- D.
Karlson
- 12.Characteristics and disorders involving a number of genes are known as "polygenic"
- A.
True
- B.
False
- 13.The Egg and Sperm are each individually known as what?
- A.
Reproductive organs
- B.
Zygotes
- C.
Genome
- D.
Gametes
- 14.The genetic potential of variation from any two human parents is roughly:
- A.
23
- B.
46
- C.
512
- D.
8,000,000
- 15.Behavioral Genetics methods of study generally focuses on twins and adopted peoples.
- A.
True
- B.
False
- 16.What does Heritability tell us about?
- A.
The specific genes contributing to a trait
- B.
An estimate of a population's shared characteristics
- C.
The percentage of genes causing a trait in an individual
- D.
The underlying mechanism of a trait
- 17.A heritability of 1.0 tells us that:
- A.
Genes do not contribute to phenotypical individual differences
- B.
Genes contribute to individual differences as equally as environment does
- C.
Genes are the sole reason for individual differences
- 18.Cystic Fibrosis has a disease concordance of 100%. In a pair of monozygotic twins, if one twin has cystic fibrosis, the other will have it too.
- A.
True
- B.
False
- 19.Genes completely dictate who we are
- A.
True
- B.
False
- 20.How many genes distinguish one race from another?
- A.
-1
- B.
0
- C.
6
- D.
3.14159...
- 21.Neurons are specialized for which function?
- A.
Thinking
- B.
Storing Information
- C.
Communication
- D.
Playing ice hockey
- 22.Which of the following is not a function of a neuron?
- A.
Taking in information from neighboring neurons
- B.
Integrating signals
- C.
Passing signals along
- D.
Enzyme deactivation
- 23.The All-Or-None principle says that the nodes of Ranvier will either fire or they won't.
- A.
True
- B.
False
- 24.Match the following description with its part of the neuron:Short, branchlike appendages that increase the neuron's receptive field and detect chemical signals from neighboring neurons.
- A.
Dendrites
- B.
Cell Body
- C.
Axon
- D.
Terminal buttons
- E.
Synaptic cleft
- F.
Myelin sheath
- G.
Nodes of Ranvier
- 25.Match the following description with its part of the neuron:A long, narrow outgrowth that electrical impulses are transmitted along.
- A.
Cell body
- B.
Axon
- C.
Terminal buttons
- D.
Synaptic cleft
- E.
Myelin sheath
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