Question : 91. When Charlie was three years old, he fell off the : 1246225

 

 

91. When Charlie was three years old, he fell off the slide at the playground and damaged the left hemisphere of his brain. Despite this injury, as Charlie grew older he still retained some of his language abilities because the right hemisphere of his brain took control over the language function. Which of the following mechanisms of brain damage repair is apparent in this example? 
A. Collateral sprouting
B. Substitution of function
C. Neurogenesis
D. Lobotomy

92. Which of the following is true about neurogenesis? 
A. Neurogenesis cannot occur in human adults.
B. No neurons, only increased connections between neurons, could be formed following infancy.
C. Researchers have documented neurogenesis in only two brain regions; the hippocampus and the olfactory bulb.
D. The different functions that these new brain cells perform are now known and they have been found to last for several years.

93. _____ are unique primitive cells that have the capacity to develop into most types of human cells. 
A. Schwann cells
B. Neurons
C. Glial cells
D. Stem cells

94. In the human cell, threadlike structures that come in 23 pairs, one member of each pair originating from each parent, and that contain DNA are called _____. 
A. chromosomes
B. ergosomes
C. ribosome
D. polysomes

95. _____ is a complex molecule in the cell’s chromosomes that carries genetic information. 
A. RNA
B. DNA
C. Ribosome
D. Polysome

96. Genes _____. 
A. consist of short segments of ribosomes composed of RNA
B. match and link small pieces of RNA
C. enable cells to reproduce and manufacture the proteins that are necessary for maintaining life
D. act independently and do not collaborate with another gene

97. According to the dominant-recessive genes principle, _____. 
A. the recessive gene overrides the dominant gene
B. a recessive gene exerts its influence only if one gene of a pair is recessive
C. a recessive gene exerts its influence only if both genes are dominant
D. the dominant gene overrides the recessive gene

98. _____ is a term used to describe the influences of multiple genes on behavior. 
A. The all or none principle
B. Polygenic inheritance
C. Phenotype
D. Genotype

99. _____ is a genetic method in which organisms are chosen for reproduction based on how much of a particular trait they display. 
A. Selective breeding
B. Experimental evolution
C. Polymorphism
D. Natural selection

100. Dr. Cardinale is interested in the effects of heredity and environment on intelligence. She compares the similarity of IQ scores of identical twins to the similarity of IQ scores of fraternal twins. Dr. Cardinale is conducting a _____ study. 
A. human genome
B. molecular genetics
C. behavior genetics
D. selective breeding

101. A _____ is a person’s genetic heritage, his or her actual genetic material. 
A. prototype
B. phenotype
C. endophenotype
D. genotype

102. Molly’s natural hair color is brown but she has had it dyed blonde. Molly changed her _____. 
A. phenotype
B. genotype
C. chromosomes
D. genetic heritage

 

 

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