by: hannah miller 10.1 meiosis 10.2 dihybrid crosses 10.2 gene linkage 10.3 polygenic inheritance...
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![Page 1: By: Hannah Miller 10.1 Meiosis 10.2 Dihybrid Crosses 10.2 Gene Linkage 10.3 Polygenic Inheritance PotpourriMeiosis $ 200 $ 300 $ 400 $ 500 $ 100 $ 200](https://reader035.vdocuments.us/reader035/viewer/2022062516/56649d605503460f94a41955/html5/thumbnails/1.jpg)
By: Hannah Miller
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10.1
Meiosis
10.2
Dihybrid Crosses
10.2
Gene Linkage
10.3
Polygenic Inheritan
ce
Potpourri Meiosis
$200
$300
$400
$500
$100
$200
$300
$400
$500
$100
$200
$300
$400
$500
$100
$200
$300
$400
$500
$100
$200
$300
$400
$500
$100
$200
$300
$400
$100
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10.1
Meiosis
10.2
Dihybrid Crosses
10.2
Gene Linkage
10.3
Polygenic Inheritan
ce
Potpourri Meiosis
$100
$200
$300
$400
$500
$100
$200
$300
$400
$500
$100
$200
$300
$400
$500
$100
$200
$300
$400
$500
$100
$200
$300
$400
$500
$100
$200
$300
$400
![Page 4: By: Hannah Miller 10.1 Meiosis 10.2 Dihybrid Crosses 10.2 Gene Linkage 10.3 Polygenic Inheritance PotpourriMeiosis $ 200 $ 300 $ 400 $ 500 $ 100 $ 200](https://reader035.vdocuments.us/reader035/viewer/2022062516/56649d605503460f94a41955/html5/thumbnails/4.jpg)
WHAT IS MEIOSIS? WHAT IS MEIOSIS?
>>>
MEIOSIS IS A MEIOSIS IS A STEPSTEP
BY STEP BY STEP PROCESS BYPROCESS BY
WHICH A WHICH A DIPLOID CELL DIPLOID CELL
PRODUCES FOUR PRODUCES FOUR HAPLOID HAPLOID
DAUGHTER DAUGHTER CELLS.CELLS.
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WHAT ARE HOMOLOGOUS WHAT ARE HOMOLOGOUS CHROMOSOMES?CHROMOSOMES?
>>>
HOMOLOGOUS HOMOLOGOUS CHROMOSOMES CHROMOSOMES
ARE ARE CHROMOSOMES CHROMOSOMES THAT CARRY THE THAT CARRY THE SAME GENES AND SAME GENES AND ARE SIMILAR SIZE ARE SIMILAR SIZE
AND SHAPEAND SHAPE
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>>>
OUTLINE THE FORMATION OUTLINE THE FORMATION OF CHIASMATA IN THE OF CHIASMATA IN THE PROCESS OF CROSSING PROCESS OF CROSSING
OVEROVERAFTER THE PATERNAL & MATERNAL AFTER THE PATERNAL & MATERNAL
CHROMATIDS INTERTWINE & BREAK CHROMATIDS INTERTWINE & BREAK AT EXACTLY THE SAME POSITION, & THE AT EXACTLY THE SAME POSITION, & THE
TWO SEGMENTS CONNECT TO THE TWO SEGMENTS CONNECT TO THE CORRESPONDING POSTION ON THE OTHER CORRESPONDING POSTION ON THE OTHER CHROMATID, THE PLACE WHERE THE TWO CHROMATID, THE PLACE WHERE THE TWO
CONNECT TO EACHOTHER IS CALLED A CONNECT TO EACHOTHER IS CALLED A CHIASTMA (PLURAL CHIASMATA) CHIASTMA (PLURAL CHIASMATA)
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STATE MENDEL’S LAW STATE MENDEL’S LAW OF INDEPENDENT OF INDEPENDENT
ASSORTMENTASSORTMENT
>>>
WHEN GAMETES ARE WHEN GAMETES ARE FORMED, THE FORMED, THE
SEPARATION OF ONE SEPARATION OF ONE PAIR OF ALLELES PAIR OF ALLELES
BETWEEN THE BETWEEN THE DAUGHTER CELLS IS DAUGHTER CELLS IS
INDEPENDENT OF INDEPENDENT OF THE SERPARATION THE SERPARATION OF ANOTHER PAIR OF ANOTHER PAIR
OF ALLELESOF ALLELES
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EXPLAIN HOW MEIOSIS EXPLAIN HOW MEIOSIS RESULTS IN EFFECTIVELY RESULTS IN EFFECTIVELY
INFINITE GENETIC VARIETY IN INFINITE GENETIC VARIETY IN GAMETESGAMETES
>>>
THROUGH CROSSING THROUGH CROSSING OVER IN PROPHASE I OVER IN PROPHASE I
AND RANDOM AND RANDOM ORIENTATION IN ORIENTATION IN METAPHASE I.METAPHASE I.
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WHAT DOES THE WHAT DOES THE GENOTYPE XGENOTYPE XHHXXh h
INDICATE?INDICATE?
>>>
A HETEROZYGOUS FEMALEA HETEROZYGOUS FEMALE
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DISTINGUISH BETWEEN DISTINGUISH BETWEEN AUTOSOMESAUTOSOMES AND AND SEX SEX
CHROMOSOMESCHROMOSOMES
>>>
THE THE SEX CHROMOSOMESSEX CHROMOSOMES ARE THE X & Y ARE THE X & Y CHROMOSOMES, AND THEY ARE THE ONES THAT CHROMOSOMES, AND THEY ARE THE ONES THAT
DETERMINE WHAT SEX YOU ARE.DETERMINE WHAT SEX YOU ARE.ANY CHROMOSOME THAT IS NOT A SEX ANY CHROMOSOME THAT IS NOT A SEX
CHROMOSOME IS AN CHROMOSOME IS AN AUTOSOMEAUTOSOME..PEOPLE HAVE PEOPLE HAVE 22 PAIRS OF AUTOSOMAL 22 PAIRS OF AUTOSOMAL CHROMOSOMESCHROMOSOMES AND AND ONE PAIR OF SEX ONE PAIR OF SEX
CHROMOSOMESCHROMOSOMES. .
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EXPLAIN HOW CROSSING OVER EXPLAIN HOW CROSSING OVER BETWEEN NON-SISTER BETWEEN NON-SISTER
CHROMATIDS OF A CHROMATIDS OF A HOMOLOGOUS PAIR IN HOMOLOGOUS PAIR IN
PROPHASE I CAN RESULT IN AN PROPHASE I CAN RESULT IN AN EXCHANGE OF ALLELES EXCHANGE OF ALLELES
>>>
A MATERNAL CHROMOSOME CAN A MATERNAL CHROMOSOME CAN END UP WITH A SEGMENT OF END UP WITH A SEGMENT OF GENETIC MATERIAL FROM A GENETIC MATERIAL FROM A
PATERNAL CHROMOSOME AND PATERNAL CHROMOSOME AND VICE VERSA.VICE VERSA.
DURING ANY SINGLE CROSSING DURING ANY SINGLE CROSSING OVER EVENT, HUNDREDS OR OVER EVENT, HUNDREDS OR
THOUSANDS OF GENES CAN BE THOUSANDS OF GENES CAN BE TRADED IN THIS WAY.TRADED IN THIS WAY.
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IN GARDEN PEAS, THE PAIRS OF ALLELES CODING FOR SEED SHAPE AND
SEED COLOR ARE UNLINKED. THE ALLELE FOR SMOOTH SEEDS (S) IS DOMINANT OVER THE ALLELE FOR
WRINKLED SEEDS (s). THE ALLELE FOR YELLOW SEEDS (Y) IS DOMINANT OVER
THE ALLELE FOR GREEN SEEDS (y). IF A PLANT OF GENOTYPE Ssyy IS
CROSSED WITH A PLANT OF GENOTYPE ssYy, WHICH OFFSPRING ARE
RECOMBINANTS?
>>>
SsYy & ssyySsYy & ssyy
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WHAT IS THE DIFFERENCE IN WHAT IS THE DIFFERENCE IN NUMBER OF POSSIBLE OFFSPRING NUMBER OF POSSIBLE OFFSPRING FOR MONOHYBRID CROSSES AND FOR MONOHYBRID CROSSES AND
DIHYBRID CROSSES?DIHYBRID CROSSES?
>>>
MONOHYBRID CROSSES: DIHYBRID MONOHYBRID CROSSES: DIHYBRID CROSSES:CROSSES:
2 x 2 = 4 x 4 2 x 2 = 4 x 4 = =
4 POSSIBLE OFFSPRING4 POSSIBLE OFFSPRING 16 POSSIBLE 16 POSSIBLE OFFSPRINGOFFSPRING
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DEFINE LINKAGE GROUPDEFINE LINKAGE GROUP
>>>
ANY TWO GENES WHICH ARE FOUND ON THE ANY TWO GENES WHICH ARE FOUND ON THE SAME CHROMOSOME ARE SAID TO BE LINKED SAME CHROMOSOME ARE SAID TO BE LINKED
TO EACHOTHER. A GROUP OF GENES TO EACHOTHER. A GROUP OF GENES INHERITED TOGETHER BECAUSE THE ARE INHERITED TOGETHER BECAUSE THE ARE FOUND ON THE SAME CHROMOSOME ARE FOUND ON THE SAME CHROMOSOME ARE
CONSIDERED TO BE MEMBERS OF A LINKAGE CONSIDERED TO BE MEMBERS OF A LINKAGE GROUP.GROUP.
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WHAT IS THE LOCUS WHAT IS THE LOCUS OF A GENE?OF A GENE?
>>>
THE POSITION OF A GENE ON THE POSITION OF A GENE ON A CHROMOSOME.A CHROMOSOME.
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WHAT CONSTITUTES A WHAT CONSTITUTES A LINKAGE GROUP?LINKAGE GROUP?
>>>
GENES CARRIED ON GENES CARRIED ON THE SAME THE SAME
CHROMOSOME.CHROMOSOME.
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TWO GENES A & B ARE LINKED TOGETHER TWO GENES A & B ARE LINKED TOGETHER AS SHOWN BELOW.AS SHOWN BELOW.
IF THE GENES ARE FAR ENOUGH APART IF THE GENES ARE FAR ENOUGH APART SUCH THAT CROSSING OVER BETWEEN THE SUCH THAT CROSSING OVER BETWEEN THE ALLELES OCCURS OCASSIONALLY, WHICH ALLELES OCCURS OCASSIONALLY, WHICH STATEMENT IS TRUE OF THE GAMETES?STATEMENT IS TRUE OF THE GAMETES?
>>>
A.A.ALL OF THE GAMETES WILL BE Ab & aB.ALL OF THE GAMETES WILL BE Ab & aB.B.B.THERE WILL BE 25% Ab, 25% aB, 25% ab, & 25% AB.THERE WILL BE 25% Ab, 25% aB, 25% ab, & 25% AB.C.C.THERE WILL BE EQUAL NUMBERS OF Ab & ab GAMETES.THERE WILL BE EQUAL NUMBERS OF Ab & ab GAMETES.D.D.THE NUMBER OF Ab GAMETES WILL BE GREATER THAN THE NUMBER OF Ab GAMETES WILL BE GREATER THAN
THE NUMBER OF ab GAMETESTHE NUMBER OF ab GAMETES
A.A.ALL OF THE GAMETES WILL BE Ab & aB.ALL OF THE GAMETES WILL BE Ab & aB.B.B.THERE WILL BE 25% Ab, 25% aB, 25% ab, & 25% AB.THERE WILL BE 25% Ab, 25% aB, 25% ab, & 25% AB.C.C.THERE WILL BE EQUAL NUMBERS OF Ab & ab GAMETES.THERE WILL BE EQUAL NUMBERS OF Ab & ab GAMETES.D.D.THE NUMBER OF Ab GAMETES WILL BE GREATER THAN THE NUMBER OF Ab GAMETES WILL BE GREATER THAN
THE NUMBER OF ab GAMETESTHE NUMBER OF ab GAMETES
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A PARENT OF AN UNKOWN A PARENT OF AN UNKOWN GENOTYPE IS MATED IN A GENOTYPE IS MATED IN A TEST CROSS. HALF OF THE TEST CROSS. HALF OF THE
OFFSPRING HAVE THE SAME OFFSPRING HAVE THE SAME PHENOTYPE AS THE PHENOTYPE AS THE
PARENT. WHAT CAN BE PARENT. WHAT CAN BE CONCLUDED FROM THIS CONCLUDED FROM THIS
RESULT?RESULT?
>>>
THAT THE PARENT IS HETEROZYGOUSTHAT THE PARENT IS HETEROZYGOUS FOR THE TRAITFOR THE TRAIT
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DEFINE POLYGENETIC DEFINE POLYGENETIC INHERITANCEINHERITANCE
>>>
TWO OR MORE GENES INFLUENCING TWO OR MORE GENES INFLUENCING THE EXPRESSION OF ONE TRAIT.THE EXPRESSION OF ONE TRAIT.
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DISTINGUISH BETWEEN DISTINGUISH BETWEEN CONTINUOUSCONTINUOUS AND AND
DISCONTINUOUSDISCONTINUOUS VARIATION?VARIATION?
>>>
WHENWHEN AN ARRAY OF POSSIBLE PHENOTYPES AN ARRAY OF POSSIBLE PHENOTYPES CAN BE PRODUCED, IT IS CALLED CAN BE PRODUCED, IT IS CALLED
CONTINUOUS VARIATION CONTINUOUS VARIATION (SUCH AS HEIGHT). (SUCH AS HEIGHT). WHEN VARIATION IS NOT CONTINOUS IT IS WHEN VARIATION IS NOT CONTINOUS IT IS
REFERRED TO AS REFERRED TO AS DISCONTINUOUS DISCONTINUOUS
VARIATIONVARIATION (SUCH AS BLOODTYPE). (SUCH AS BLOODTYPE).
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TRUE OR FALSE:TRUE OR FALSE:
>>>
TRUETRUE (FOR EXAMPLE HUMAN SKIN COLOR)(FOR EXAMPLE HUMAN SKIN COLOR)
POLYGENETIC INHERITANCE POLYGENETIC INHERITANCE CAN CONTRIBUTE TO CAN CONTRIBUTE TO
CONTINUOUS VARIATIONCONTINUOUS VARIATION
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DOES SKIN COLOR DOES SKIN COLOR SHOW CONTINOUS SHOW CONTINOUS
VARIATION?VARIATION?
>>>
YES.YES. THE SKIN COLOR IS DUE TO THE SKIN COLOR IS DUE TO THE AMOUNT OF MELININ IN THE AMOUNT OF MELININ IN THE PERSONS SKIN, WHICH THE PERSONS SKIN, WHICH
IS AN EXAMPLE OF IS AN EXAMPLE OF CONTINOUS VARIATION.CONTINOUS VARIATION.
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WHICH OF THE FOLLOWING WHICH OF THE FOLLOWING ARE EXAMPLES OF ARE EXAMPLES OF
CONTINOUS VARIATION:CONTINOUS VARIATION:
>>>
A.A. BODY MASSBODY MASS
B.B. SHOE SIZESHOE SIZE
C.C. ABILITY TO ROLL TONGUEABILITY TO ROLL TONGUE
D.D. LEFT-HANDEDNESSLEFT-HANDEDNESS
E.E. FINGER SPANFINGER SPAN
F.F. PRESENCE OF HAIR BETWEEN PRESENCE OF HAIR BETWEEN KNUCKLES OF FINGERSKNUCKLES OF FINGERS
A.A. BODY MASSBODY MASS
B.B. SHOE SIZESHOE SIZE
C.C. ABILITY TO ROLL TONGUEABILITY TO ROLL TONGUE
D.D. LEFT-HANDEDNESSLEFT-HANDEDNESS
E.E. FINGER SPANFINGER SPAN
F.F. PRESENCE OF HAIR BETWEEN PRESENCE OF HAIR BETWEEN KNUCKLES OF FINGERSKNUCKLES OF FINGERS
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A WOMAN HAS A A WOMAN HAS A HETEROZYGOUS GENOTYPE FOR HETEROZYGOUS GENOTYPE FOR
BLOOD GROUP B. SHE IS BLOOD GROUP B. SHE IS EXPECTING A BABY WITH A MAN EXPECTING A BABY WITH A MAN WHO IS HOMOZYGOUS GROUP A WHO IS HOMOZYGOUS GROUP A WHAT ARE THE POSSIBLE BLOOD WHAT ARE THE POSSIBLE BLOOD
GROUPS FOR THE BABY?GROUPS FOR THE BABY?
>>>
A & A & ABAB
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HOW DOES THE X CHROMOSOME HOW DOES THE X CHROMOSOME DIFFER FROM THE Y DIFFER FROM THE Y
CHROMOSOME IN HUMANS?CHROMOSOME IN HUMANS?
>>>
SOME GENES ON SOME GENES ON THETHE
X CHROMOSOME X CHROMOSOME ARE ABSENT FROM ARE ABSENT FROM
THE Y THE Y CHROMOSOMECHROMOSOME
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A GENE HAS THREE A GENE HAS THREE ALLELES. HOW MANY ALLELES. HOW MANY
DIFFERENT GENOTYPES DIFFERENT GENOTYPES CAN BE FOUND FOR CAN BE FOUND FOR
THIS GENE?THIS GENE?
>>>
66
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IF THE HAPLOID NUMBER OF AN IF THE HAPLOID NUMBER OF AN ORGANISM IS 8, HOW MANY ORGANISM IS 8, HOW MANY
DIFFERENT VARIETIES OF DIFFERENT VARIETIES OF GAMETES ARE POSSIBLE, NOT GAMETES ARE POSSIBLE, NOT CONSIDERING THE EFFECTS OF CONSIDERING THE EFFECTS OF
CROSSING OVER?CROSSING OVER?
256256
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WHAT DOES IT MEAN FOR WHAT DOES IT MEAN FOR A TRAIT TO BE “SEX A TRAIT TO BE “SEX
LINKED”?LINKED”?
>>>
THAT THE TRAIT OR GENE THAT THE TRAIT OR GENE MUST HAVE ITS LOCUS ON A MUST HAVE ITS LOCUS ON A
SEX CHROMOSOME. WHERE A SEX CHROMOSOME. WHERE A GENE IS LOCATED GENE IS LOCATED
DETERMINES WHETHER OR DETERMINES WHETHER OR NOT THE TRAIT IT CONTROLS NOT THE TRAIT IT CONTROLS IS MORE COMMON IN MALES IS MORE COMMON IN MALES
OR FEMALES.OR FEMALES.
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>>>
WHICH PHASE OF MEIOSIS IS WHICH PHASE OF MEIOSIS IS SHOWN BELOW?SHOWN BELOW?
METAPHASEMETAPHASE
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>>>
TRUE OR FALSE:TRUE OR FALSE:SOME CELLS SKIP THE SOME CELLS SKIP THE
PHASE TELOPHASE I, AND PHASE TELOPHASE I, AND JUST START MEIOSIS II.JUST START MEIOSIS II.
TRUETRUE
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>>>
WHICH PHASE OF MEIOSIS IS SHOWN BELOW?
ANAPHASEANAPHASE
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WHAT PROCESS IS WHAT PROCESS IS OCCURRING IN THE OCCURRING IN THE DIAGRAM BELOW?DIAGRAM BELOW?
INTERPHASEINTERPHASE
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DESCRIBE THE DESCRIBE THE BEHAVIOR OF THE BEHAVIOR OF THE CHROMOSOMES IN CHROMOSOMES IN EACH PHASE OF EACH PHASE OF
MEIOSISMEIOSIS