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28 Cards in this Set

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  • Back
In Mendel's time most people believed that heredity characteristics were ____________
Blended
Mendel worked on ___________ ________
garden peas
Mendel was the first scientist to use ___________
Math (numerical analysis of results)
Mendel was a____________, _____________, and a ____________
monk, a teacher and a gardener
Mendel was a contemporary of __________
Darwin
Define: Gene
Portion of DNA that codes for traits
Define: Alleles
Different molecular forms of the same gene
Location of an allele on a chromosome
Locus
Define: Law of Dominance
One allele masks another
Law of Segregation
Alleles sparate (segregate) during Meiosis
Assortment Genes sparate independently during Meiosis
Law of Independent
What is Genetic code for a trait (aaBB)
Genotype
Define: Phenotype
Physical appearance of the trait (curly brown hair)
Same alleles (AA or aa)
Homozygous
Different alleles (Aa)
Heterozygous
Did Mendel know about sex chromosomes?
no
Mendel removed the stamens from male________ to prevent unwanted fertilization.
flowers
Give an example of a homozygous genotype for two traits.
aaBB
Cross RR with rr. The offspring will have the same____________as parent RR.
phenotype
The boxes inside a Punnett square represent the probability of the ______________ genotypes.
offspring
What Law cannot be demonstrated in a monohybrid cross?
Law of Independent Assortment
Blood types are controlled by____________ ______________
multiple alleles
Blood type AB is known as the universal _____________; blood type O is known as the universal__________________.
receiver
Doner
If a child is blood type O, one of its parents can not be blood type__________
AB
Epistasis is where___________ gene masks the effect of____________at a different location.
Epistasis is where ONE gene masks the effect of ANOTHER GENE at a different location.
Sickle-cell anemia is an example of___________
pleiotropy
The color Siamese cat feet and ears is controlled by________________ effects on the phenotype.
environmental
Continuous variation or Polygenic inheritance:
1. Many genes result in_________ trait
2. Characteristic is a__________-shaped curve
one
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