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15 Cards in this Set
- Front
- Back
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dominant traits?
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brown eyes
widow's peak free earlobes |
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genotype?
_______of a specific______? same variation of that gene? two diff var of the gene? |
genetic constitution of a character
allelic makeup of a specific gene homozygous heterozygous |
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Phenotype-
what kind? what is it? exs? ________+________=phenotype |
measurable trait
expression in a subset of individuals w/in a population eye color,cystic fibrosis, schizophrenia genotype+environment=phenotype |
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Dominance-
eye color?presence?earlobe? Punnett Square |
brown,widow's peak,free
prediction in phenotype |
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Tay-Sachs-
Homozygous: what is TT? what is tt? Heterozygous: what is Tt? |
normal alleles (enzyme prod)
normal phenotype mutant alleles(no enzyme prod) Tay-Sachs phenotype partial enzyme production normal phenotype |
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Modes of Biological Inheritance-
1.)# of what? two types? 2.) Involved what? three types? |
# of genes
monogenetic/polygenetic chromosomes autosomal-nonsex, down syndromes gonosomal-sex chroms -extra x or y or missing one mitochondrial DNA |
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Genetic Disorders-
how many known? ratio of what? |
4,000 genetic disorders
1 in 20 w/ at least one copy of the defective gene |
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Single Gene Disorders-
name four. |
Cystic fibrosis
sickle cell anemia muscular dystrophy tay-sachs disease |
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Polygenic disorders-
name seven. |
ADHD
Asthma Alzheimer's disease Arthritis Autism Alcoholism Schizophrenia |
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___+___=phenotype
what map=genotype |
genotype/environment
human genotype map |
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mapping the human genome-
began?rough draft? completion? cost? |
1990
2000 2003 $3.5 billion |
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human genome-
how many base pairs? genes? what percent of total genome? what is 98.5% of total genome? |
3 billion
20,000-25,000 genes 1.5% of total genome non-coding "junk" DNA |
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minisatellites-
range of base pairs? repeating units? range? two subgroups? related to? |
10 to 100 base pairs
4 to 5/ 100 to 200 individual variations mendelian inheritance DNA fingerprinting |
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Transposons-
what? func? what percent of human DNA? what kind of DNA sequences? what do they do? |
jumping genes/ unknown
50% of human DNA Parasitic DNA sequences latch on to DNA |
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Applications of Human Genome-
name 5. |
Genetic testing
research in diseases new therapeutic procedures evolution of human species ethnic group disease vulnerab. |
