Describe the purpose of a null hypothesis
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The purpose of the null hypothesis is to see if the test is supported or not
(null hypothesis states that there will be no difference, effect, or
relationship between the variables).
How do mutations act?
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randomly with respect to the phenotypes they produce
,A population of the endangered Tennessee cone flower consists of 15 individuals.
There are two alleles in the population that determine the alcohol dehydrogenase
enzyme: a1 and a2
In the population, there's:
10 a1 a1 homozygotes
1 a1 a2 heterozygote
4 a2 a2 homozygotes
What is the frequency of the a1 allele?
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70%
Tay-Sachs is a recessive trait. Among Ashkenazi Jews of central European ancestry,
about 1 in 3,600 children is born with the disease. What percent of individuals in this
population are carriers (heterozygous genotype)?
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3.3%
How do orgamisms choose mates?
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"honest signals": organisms select traits that signal health and quiality in an
individual (not always)
,Explain the process of transcription
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This is the process of turning DNA into RNA. When you are given the DNA
strand, find the matching nucleotides (bases) that compose the RNA strand.
Remember, for RNA, C=G and A=U.
EX: AGCTTCAGTAAGC -> UCGAAGUCAUUCG
alternative versions of individual genes are called what?
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alleles
What do mutations create?
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new alleles in the gene pool
Describe the nature of science
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, Scientific ideas change over time as new info is discovered.
Is evolution goal oriented?
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No, it is random.
Mutation is random and natural selection only acts upon existing variation.
stabilizing selection
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individuals with intermediate phenotypes are favored
EX: sickle cell anemia
What does meiosis produce?
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gametes
What is sexual selection? Example?
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The purpose of the null hypothesis is to see if the test is supported or not
(null hypothesis states that there will be no difference, effect, or
relationship between the variables).
How do mutations act?
Give this one a try later!
randomly with respect to the phenotypes they produce
,A population of the endangered Tennessee cone flower consists of 15 individuals.
There are two alleles in the population that determine the alcohol dehydrogenase
enzyme: a1 and a2
In the population, there's:
10 a1 a1 homozygotes
1 a1 a2 heterozygote
4 a2 a2 homozygotes
What is the frequency of the a1 allele?
Give this one a try later!
70%
Tay-Sachs is a recessive trait. Among Ashkenazi Jews of central European ancestry,
about 1 in 3,600 children is born with the disease. What percent of individuals in this
population are carriers (heterozygous genotype)?
Give this one a try later!
3.3%
How do orgamisms choose mates?
Give this one a try later!
"honest signals": organisms select traits that signal health and quiality in an
individual (not always)
,Explain the process of transcription
Give this one a try later!
This is the process of turning DNA into RNA. When you are given the DNA
strand, find the matching nucleotides (bases) that compose the RNA strand.
Remember, for RNA, C=G and A=U.
EX: AGCTTCAGTAAGC -> UCGAAGUCAUUCG
alternative versions of individual genes are called what?
Give this one a try later!
alleles
What do mutations create?
Give this one a try later!
new alleles in the gene pool
Describe the nature of science
Give this one a try later!
, Scientific ideas change over time as new info is discovered.
Is evolution goal oriented?
Give this one a try later!
No, it is random.
Mutation is random and natural selection only acts upon existing variation.
stabilizing selection
Give this one a try later!
individuals with intermediate phenotypes are favored
EX: sickle cell anemia
What does meiosis produce?
Give this one a try later!
gametes
What is sexual selection? Example?
