genetics and molecular biology jeopardy!! potpourrimeiosis genetics 1genetics 2 10 20 30 40 50
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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…
1010
Genotype
Potpourri
2020 Potpourri
If both alleles show up in the phenotype of the heterozygote, they
are…
20 20 Potpourri
Codominant
3030 Potpourri
When a mutation occurs on a single chromosome, it’s called…
30 30 Potpourri
Aneuploidy
30 30 Community 1Community 1
4040 Potpourri
When genes are placed in the reverse order on a chromosome, this
is called…
40 40 Potpourri
An inversion.
50 50 Potpourri
Living things obtain genetic diversity by…
5050
*crossing over during prophase 1*random orientation of
*chromosomes during metaphase 1*sexual reproduction
Potpourri
1010
When does crossing over occur and why?
Meiosis
*Prophase 1 when homologous chromosomes undergo synapsis
and form a tetrad *for genetic diversity in gametes
1010 Meiosis
2020
What are the products of meiosis?
Meiosis
*4 genetically different haploid *4 genetically different haploid cellscells
*Sperm/egg cells (gametes)*Sperm/egg cells (gametes)
2020 Meiosis
3030
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
*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)
3030 Meiosis
4040
What is the law of segregation?What is the law of segregation?
Meiosis
*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
5050
What is the law of independent What is the law of independent assortment?assortment?
Meiosis
5050
Chromosomes with different alleles sort independently along the metaphase plate of meiosis 1.
Meiosis
10 Meiosis 10 Meiosis
What term is used to describe chromosomes that carry the same genes, just different versions of those genes?
Homologous Chromosomes
1010 Meiosis
2020
When do homologous chromosomes pair up? What happens as a results?
Meiosis Meiosis
Prophase 1- synapsis occurs, a Prophase 1- synapsis occurs, a tetrad forms, enabling tetrad forms, enabling
crossing over.crossing over.
2020 Meiosis Meiosis
3030
What is required before meiosis can What is required before meiosis can occur?occur?
Meiosis Meiosis
3030 Meiosis Meiosis
*DNA replication in a diploid cell.
4040
Identify the phase of meiosis and explain.
Meiosis Meiosis
4040 Meiosis Meiosis
Anaphase 1; *homologous chromosomes separate into individual chromosomes (sister chromatids)*cell is now haploid
5050
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
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)
1010 Genetics 1
Colorblindness and hemophilia are examles of…
1010 Genetics 1
Sex-linked, recessive traits
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
2020 Genetics 1
DominantDominant
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?
3030 Genetics 1
Parents- BB X bb Offspring- Bb
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…
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.
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…
5050 Genetics 1
Law of Segregation
1010
My name is Bond, Ionic Bond;Taken, not shared!
Genetics 2Genetics 2
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
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
1010 Genetics 2Genetics 2
Mendel discovered that a dihybrid cross between parents heterozygous for both traits will always show what kind of phenotypic ratio?
1010 Genetics 2Genetics 2
9:3:3:1
1010 Genetics 2Genetics 2
2020 Genetics 2Genetics 2
To determine the genotype of a dominant trait, you can mate this individual with…
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
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…
3030 Genetics 2Genetics 2
*codominance
3030 Genetics 2Genetics 2
4040 Genetics 2Genetics 2
Skin color is an example of….
4040 Genetics 2Genetics 2
Polygenic Inheritance
5050 Genetics 2Genetics 2
The Chromosome Theory of The Chromosome Theory of Inheritance states…Inheritance states…
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.
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