Quiz 2 - Dev Psych

19 flashcardsby Santiago
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1
What term refers to the thread-like structures in the nuclei of cells that contain genetic material?
Chromosomes
2
What term refers to the first 22 pairs of chromosomes?
Autosomes
3
What term refers to the 23rd pair of chromosomes? (Determines the child’s sex)
Sex Chromosomes
4
What term refers to a molecule composed of four nucleotide bases, the biochemical basis of heredity?
DNA
5
What term refers to the group of nucleotide bases that provide a specific set of biochemical instructions?
Gene
6
What term refers to a person’s hereditary makeup?
Genotype
7
What term refers to the physical, behavioral, and psychological features that result from the interaction between one’s genes and the environment?
Phenotype
8
What term refers to a variation of genes?
Alleles
9
What term refers to when the alleles in a pair of chromosones are the same?
Homozygous
10
What term refers to when the alleles in a pair of chromosomes differ from each other?
Heterozygous
11
What kind of allele’s chemical instructions are followed?
Dominant Alleles
12
What allele’s instructions are ignored in the presence of a dominant allele?
Recessive Allele
13
What disorder has individuals show signs of mild anemia?
Sickle Cell
14
What inherited disorder has infants lacking a liver enzyme?
PKU
15
What type of progressive, fatal type of dementia is caused by dominant alleles?
Huntington’s Disease
16
What branch of genetics studies the inheritance of behavioral and psychological traits?
Behavioral Genetics
17
What term refers to when phenotypes are the result of the combined activity of many separate genes?
Polygenic Inheritance
18
What variety of twins results from a single fertilized egg to form two new individuals?
Monozygotic Twins
19
What variety of twins results from two separate eggs fertilized by two sperm? (Fraternal)
Dizygotic Twins
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