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19 terms

Genetics

STUDY
PLAY
Law of Independent Assortment
Genes for different traits segregate independently during gamete formation
Principle of Segregation
During gamete formation, alleles for the same trait are separated from one another. Thus gametes, only carry one copy of each gene so each parent only passes one copy of each gene to their offspring.
Down Syndrome Notation
Down Syndrome Notation
45, XO
Turner Syndrome Notation
47, XXY
Klinefelter Sydnrome
47, XXX
Metafemales
47, XYY
Jacob Syndrome
Autosomal Dominant
Appears in every generation
Approx. equal # of males and females affected
Ex. Huntington's Disease
Autosomal Recessive
Appear to "skip" generations
Males and females equally affected
Sex-linked Recessive
Appears to "skip" generations
More males are affected than females
Females can be carriers
Gregor Mendel
Who was the father of genetics?
1822
When was Gregor Mendel born?
Austrian Monk
What was Gregor Mendel before he became interested in genetics?
Pea Plants
How did Gregor Mendel study heredity?
Non-disjunction of chromosomes during meiosis
Chromosomal abnormalities during crossing-over in meiosis
Mutations in DNA
Name three ways disorders arise.
Abnormal numbers
What are aneuplodies?
Deletions, inversions, translocations, duplications
Name 4 other errors that can occur in chromosomes?
1st law of probability
Past outcomes do not affect future outcomes
2nd law of probability
The probability of 2 events happening at the same time is the product of the probability that the vents will occur independently.