genetics and molecular biology jeopardy!! potpourrimeiosis genetics 1genetics 2 10 20 30 40 50
TRANSCRIPT
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Genetics and Molecular Biology JEOPARDY!!
Potpourri Meiosis Meiosis Genetics 1 Genetics 2
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10 10 Potpourri
Phenotype is always determined by…
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Genotype
Potpourri
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2020 Potpourri
If both alleles show up in the phenotype of the heterozygote, they
are…
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20 20 Potpourri
Codominant
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3030 Potpourri
When a mutation occurs on a single chromosome, it’s called…
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30 30 Potpourri
Aneuploidy
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30 30 Community 1Community 1
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4040 Potpourri
When genes are placed in the reverse order on a chromosome, this
is called…
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40 40 Potpourri
An inversion.
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50 50 Potpourri
Living things obtain genetic diversity by…
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*crossing over during prophase 1*random orientation of
*chromosomes during metaphase 1*sexual reproduction
Potpourri
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When does crossing over occur and why?
Meiosis
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*Prophase 1 when homologous chromosomes undergo synapsis
and form a tetrad *for genetic diversity in gametes
1010 Meiosis
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2020
What are the products of meiosis?
Meiosis
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*4 genetically different haploid *4 genetically different haploid cellscells
*Sperm/egg cells (gametes)*Sperm/egg cells (gametes)
2020 Meiosis
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Why do homologous chromosomes Why do homologous chromosomes pair up during prophase 1 of meiosis pair up during prophase 1 of meiosis
but never in mitosis?but never in mitosis?
Meiosis
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*To reduce the number of *To reduce the number of chromosomes (stays the same in chromosomes (stays the same in
mitosis)mitosis)*to enable crossing over to occur *to enable crossing over to occur
(stays the same in mitosis)(stays the same in mitosis)
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What is the law of segregation?What is the law of segregation?
Meiosis
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*separation of chromosomes *separation of chromosomes during anaphase 1 of meiosis.during anaphase 1 of meiosis.*ensures gametes only have one *ensures gametes only have one copy of each allelecopy of each allele
4040 Meiosis
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What is the law of independent What is the law of independent assortment?assortment?
Meiosis
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Chromosomes with different alleles sort independently along the metaphase plate of meiosis 1.
Meiosis
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10 Meiosis 10 Meiosis
What term is used to describe chromosomes that carry the same genes, just different versions of those genes?
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Homologous Chromosomes
1010 Meiosis
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2020
When do homologous chromosomes pair up? What happens as a results?
Meiosis Meiosis
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Prophase 1- synapsis occurs, a Prophase 1- synapsis occurs, a tetrad forms, enabling tetrad forms, enabling
crossing over.crossing over.
2020 Meiosis Meiosis
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What is required before meiosis can What is required before meiosis can occur?occur?
Meiosis Meiosis
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3030 Meiosis Meiosis
*DNA replication in a diploid cell.
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Identify the phase of meiosis and explain.
Meiosis Meiosis
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4040 Meiosis Meiosis
Anaphase 1; *homologous chromosomes separate into individual chromosomes (sister chromatids)*cell is now haploid
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A cat has a diploid number of 38. A cat has a diploid number of 38.
What would the number of What would the number of chromosomes be in a cell in telophase chromosomes be in a cell in telophase 1 of meiosis in this cat? What would it 1 of meiosis in this cat? What would it
look like?look like?What would the number of chromatids What would the number of chromatids be in a cell in telophase 2 of meiosis in be in a cell in telophase 2 of meiosis in
this cat? What would it look like?this cat? What would it look like?
Meiosis Meiosis
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5050 Meiosis Meiosis
1.19, X (two sister chromatids)
2. 19, | 2. 19, | (one half of a chromosomes, (one half of a chromosomes,
individual chromatid)individual chromatid)
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1010 Genetics 1
Colorblindness and hemophilia are examles of…
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1010 Genetics 1
Sex-linked, recessive traits
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2020
The allele that is The allele that is expressed in the expressed in the
phenotype is phenotype is referred to as ….referred to as ….
Genetics 1
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2020 Genetics 1
DominantDominant
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3030 Genetics 1
After mating a brown bunny with a white bunny, the offspring are all brown. What are the genotypes of the parents? The offspring?
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3030 Genetics 1
Parents- BB X bb Offspring- Bb
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4040 Genetics 1
Since each pair of alleles Since each pair of alleles segregate separately from segregate separately from other pairs of alleles, Mendel other pairs of alleles, Mendel created…created…
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4040Genetics 1
*The Law of Independent Assortment*supported by *supported by homologous chromosome homologous chromosome random sorting during random sorting during metaphase 1 of meiosis. metaphase 1 of meiosis.
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5050 Genetics 1
Because alleles separate when Because alleles separate when homologous chromosomes homologous chromosomes split in anaphase 1 of meiosis, split in anaphase 1 of meiosis, this supports Mendel’s…this supports Mendel’s…
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5050 Genetics 1
Law of Segregation
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My name is Bond, Ionic Bond;Taken, not shared!
Genetics 2Genetics 2
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10 Population Growth
From: Mariano Cecowski <MCecowski#NoSpam.sif.com.ar>
Q: if both a bear in Yosemite and one in Alaska fall into the waterwhich one disolves faster?
A: The one in Alaska because it is
HIJKLMNO
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10 Population Growth
Alimentary: What Sherlock Holmes said to Dr. Watson.
Urinate: What a nurse would say if a patient asked her what room he's in.
Urine - The opposite of "You're out!"Benign: What we want when we are eight.
Intestine - Currently taking an exam
CARDIOLOGY: advanced study of poker playing
TERMINAL ILLNESS: getting sick at the airport
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1010 Genetics 2Genetics 2
Mendel discovered that a dihybrid cross between parents heterozygous for both traits will always show what kind of phenotypic ratio?
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1010 Genetics 2Genetics 2
9:3:3:1
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1010 Genetics 2Genetics 2
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2020 Genetics 2Genetics 2
To determine the genotype of a dominant trait, you can mate this individual with…
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An individual homozygous An individual homozygous recessive for the trait (called a recessive for the trait (called a
test cross)test cross)
2020Genetics 2Genetics 2
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3030 Genetics 2Genetics 2
When both alleles are When both alleles are expressed in an expressed in an offspring, this is called…offspring, this is called…
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3030 Genetics 2Genetics 2
*codominance
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3030 Genetics 2Genetics 2
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4040 Genetics 2Genetics 2
Skin color is an example of….
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4040 Genetics 2Genetics 2
Polygenic Inheritance
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5050 Genetics 2Genetics 2
The Chromosome Theory of The Chromosome Theory of Inheritance states…Inheritance states…
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5050 Genetics 2Genetics 2
It’s the behavior of It’s the behavior of chromosomes during chromosomes during meiosis and fertilization meiosis and fertilization that accounts for that accounts for inheritance patterns. inheritance patterns.