Genetics

Genetics, selection, speciation

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  • Created by: tcrj
  • Created on: 02-01-15 10:24
What is an allele?
A different form of a gene
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What does recessive mean?
Only shows effect when the dominant is absent
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What does co-dominance mean?
Both alleles are expressed in the phenotype
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In complete dominance is where alleles are at the same strength. If a homozygous white and a monozygous red were to mate, what phenotype would the offspring have if white and red are incomplete dominance?
Pink
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Red is dominant to black, but white is dominant to red. What is the order of dominance
White, Red, Black
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If the genotypes AO and BO were to mate. What would the offsprings Phenotype be?
AB,O,A,B
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What is the autosome?
All the chromosomes apart from the sex chromosomes
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Using the Hardy- Weinberg principle, is there a allele frequency change from generations?
No
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What is the Hardy- Weinberg equation?
P2 + q2 + 2Pq= 1
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In the Hardy- Weinberg criteria, what does the F stand for
Fertility (equal)
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In the Hardy- Weinberg equation what does q2 mean?
Homozygous recessive
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In selection, what does the R stand for?
Reproductive success
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In selection what does the A not stand for
Adverse
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If being yellow is advantageous to being blue, more yellow would survive. What type of selection is thing?
Directional
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What type of selection is when the range is reduced?
Stabilising
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How many gene pools does speciation start with?
1
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What is the acronym for speciation?
MIST
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If two groups are seperwted by a forest. What type of isolation is this?
Geographic
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Other cards in this set

Card 2

Front

What does recessive mean?

Back

Only shows effect when the dominant is absent

Card 3

Front

What does co-dominance mean?

Back

Preview of the front of card 3

Card 4

Front

In complete dominance is where alleles are at the same strength. If a homozygous white and a monozygous red were to mate, what phenotype would the offspring have if white and red are incomplete dominance?

Back

Preview of the front of card 4

Card 5

Front

Red is dominant to black, but white is dominant to red. What is the order of dominance

Back

Preview of the front of card 5
View more cards

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