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12 Cards in this Set
- Front
- Back
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A monohybrid cross looks at ____characteristic
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one
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Dominant vs Recessive
When both alleles are present but only one is expressed=_____ Recessive: the trait appears lost in F1 generation recessive allele _____by the dominant one two alles separate with equal probability into the gamates= _________ |
dominant
masked principle of segragation |
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What is mandel's first law?
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two alleles seperate a dipliod organism with only ONE allele per gamete
-segrate at equal proportions |
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Meiosis and genetic crosses
– one maternal & one paternal chromosome =_____ – During S phase, replicate chromosomes = ____ – Segregate during anaphase I, separates alleles – During anaphase II of meiosis, each gamete carries one allele as the _______ would predict |
chromosome theory of heredity
two copies of each allele, one on each chromatid laws of segregation |
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what is a punnet square ?
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A graphical way of determining genetic crosses & the phenotypes and genotypes
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What are the two things the monohybrid crosses reveal?
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Principle of segragatoin and concept of dominance
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What is a test cross
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test for dominant and recessive traits
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Incomplete Dominance confuses the ...
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concept of
dominance |
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what does a dihybrid cross reveal?
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principle of independant assortment
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• Dhybrid Crosses: looking at ___ traits
• The Principle of __________ • Relating the Principle of Independent Assortment to _______ |
two
independant assortment meiosis |
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How are the principles of segration and independent assortment related and how are they different?
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Genes encoding diffenent characteristics seperate and assort independently of one another when they do not locate close together on the same chromosome
during the process two alleles of the same gene encoding one characteristic still have to be segregated from each other during the formation of gametes |
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what is probability and how is it calulated ?
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likely of the occurrence of any particular event
the number of times a particular event occurs divides by all the number of possible outcomes |
