genetics practice. r r y yr r y y heterozygous round yellow what are the possible gametes this...
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GENETICS PRACTICE
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R r Y y
HETEROZYGOUSROUND YELLOW
WHAT ARE THE POSSIBLE GAMETES THIS PARENT CAN MAKE?
Each gamete shouldget one of each kindof gene
___________ ____________ _____________ _____________
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R r Y y
HETEROZYGOUSROUND YELLOW
PRACTICE MAKING GAMETES
WHAT ARE THE POSSIBLE GAMETES THIS PARENT CAN MAKE?
Each gamete shouldget one of each kindof gene
___________ ____________ _____________ _____________R Y r y r Y R y
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RY Ry rY ry
RY
Ry
rY
ry
Sign of a ______________________ cross is a_____________ ratio in offspring.
____ Round & Yellow
____ Round & green
____ Wrinkled & yellow
____ wrinkled & green
RRYY RRYy RrYY RrYy
RRYy RRyy RrYy Rryy
RrYY RrYy rrYY rrYy
RrYy Rryy rrYy rryy
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RY Ry rY ry
RY
Ry
rY
ry
Sign of a ______________________ cross is a_____________ ratio in offspring.9:3:3:1
____ Round & Yellow
____ Round & green
____ Wrinkled & yellow
____ wrinkled & green
9
3
3
1
RRYY RRYy RrYY RrYy
RRYy RRyy RrYy Rryy
RrYY RrYy rrYY rrYy
RrYy Rryy rrYy rryy
heterozygous dihybrid
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__________ratio is a clue that it’s a _________________________cross
____ ____________ TRAIT 1 ; ____________ TRAIT 2 ____ ____________ TRAIT 1; _____________ TRAIT 2
____ ____________ TRAIT 1; _____________ TRAIT 2
____ ____________ TRAIT 1; _____________ TRAIT 2
9
3
3
1
9:3:3:1HETEROZYGOUS TWO gene(DIHYBRID)
dominant dominant
dominant recessive
recessive dominant
recessive recessive
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What is the probability? AaBBCcdd parent genome
What is the probability of producing a gamete with this gene combination?ABCd _____________________________
AbCd ______________________________
abcd _______________________________
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What is the probability? AaBBCcdd X AabbCCDd parents
What is the probability of producing a offspring with this gene combination?AABbCcDd _____________________________
AaBBccdd______________________________
aaBbccDd_______________________________
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What is the probability? AaBBCcdd parent genome
What is the probability of producing a gamete with this gene combination?ABCd _____________________________
Abcd ______________________________
Abcc _______________________________
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What is the probability? AaBBCcdd X AabbCCDd parents
What is the probability of producing a offspring with this gene combination?AABbCcDd _____________________________
AaBBccdd______________________________
aaBbccDd_______________________________
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PEDIGREES= male; doesn’t show trait
= female; doesn’t show trait
= shows trait
= carrier; doesn’t show trait
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Is it possible that this pedigree is for an autosomal recessive trait? Is it possible that this pedigree is for an X-linked recessive trait?
Write the genotype of each individual next to the symbol.
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The following is a pedigree of Dwarfism.
Is this trait inherited as AUTOSOMAL OR X-LINKED? DOMINANT or RECESSIVE?
Fill in the genotypes for A, B, C, and D
http://highered.mcgraw-hill.com/sites/0072485949/student_view0/chapter3/interactive_activity.html
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The inheritance of the disorder in II-3 from his father rules out what form of inheritance?
http://www.mybookezzz.org/ebook.php?u=aHR0cDovL21jYi5iZXJrZWxleS5lZHUvY291cnNlcy9tY2I0MS9wcmFjdGljZV9wcm9ibGVtc19hbnN3LnBkZgpQcmFjdGljZSBwcm9ibGVtcyAod2l0aCBhbnN3ZXJzKSBUaGlzIGlzIHRoZSBkZWdyZWUgb2YgZGlmZmljdWx0eSBvZiAuLi4=
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Is this trait inherited as AUTOSOMAL OR X-LINKED? DOMINANT or RECESSIVE?
http://www.mansfield.ohio-state.edu/~sabedon/biol1128.htm#A1
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a) Write the genotype of each individual next to the symbol.
b) Is it possible that this pedigree is for an autosomal recessive trait? EXPLAIN YOUR ANSWER
c) In this pedigree, two generations have been skipped.
What can you conclude about recessive traits skipping generations?
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A Wild type fruit fly (heterozygous for gray body and normal wings) is mated with a black fly with vestigial wings.OFFSPRING: 778- wild type785- black-vestigial158- black- normal wings162- gray body-vestigial wings
Is it 9:3:3:1?
Is it 3 Wild type : 1 black vestigial?
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A Wild type fruit fly (heterozygous for gray body and normal wings) is mated with a black fly with vestigial wings.OFFSPRING: 778- wild type785- black-vestigial158- black- normal wings162- gray body-vestigial wings
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A Wild type fruit fly (heterozygous for gray body and normal wings) is mated with a black fly with vestigial wings.OFFSPRING: 778- wild type785- black-vestigial158- black- normal wings162- gray body-vestigial wings
What is the recombination frequency between these genes?
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A Wild type fruit fly (heterozygous for gray body and normal wings) is mated with a black fly with vestigial wings.OFFSPRING: 778- wild type785- black-vestigial158- black- normal wings162- gray body-vestigial wings
What is the recombination frequency between these genes?
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A Wild type fruit fly (heterozygous for gray body and normal wings) is mated with a black fly with vestigial wings.OFFSPRING: 778- wild type785- black-vestigial158- black- normal wings162- gray body-vestigial wings
What is the recombination frequency between these genes?
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A Wild type fruit fly (heterozygous for gray body and red eyes) is mated with a black fly with purple eyes.OFFSPRING: 721- gray body/red eyes751- black body/purple eyes49- gray body/purple eyes45- black body/red-eyes
What is the recombination frequency between these genes?
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A Wild type fruit fly (heterozygous for gray body and red eyes) is mated with a black fly with purple eyes.OFFSPRING: 721- gray body/red eyes751- black body/purple eyes49- gray body/purple eyes45- black body/red-eyes
What is the recombination frequency between these genes?
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A Wild type fruit fly (heterozygous for gray body and red eyes) is mated with a black fly with purple eyes.OFFSPRING: 721- gray body/red eyes751- black body/purple eyes49- gray body/purple eyes45- black body/red-eyes
What is the recombination frequency between these genes?
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Determine the sequence of genes along a chromosome based on the following recombination frequencies
A-C 20%A-D 10%B-C 15%B-D 5%
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Determine the sequence of genes along a chromosome based on the following recombination frequencies
A-C 20%A-D 10%B-C 15%B-D 5%
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Determine the sequence of genes along a chromosome based on the following recombination frequencies
A-C 20%A-D 10%B-C 15%B-D 5%
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Determine the sequence of genes along a chromosome based on the following recombination frequencies
A-C 10%A-D 30%B-C 24%B-D 16%
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Determine the sequence of genes along a chromosome based on the following recombination frequencies
A-C 10%A-D 30%B-C 24%B-D 16%
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Determine the sequence of genes along a chromosome based on the following recombination frequencies
A-C 10%A-D 30%B-C 24%B-D 16%
CABD
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Determine the sequence of genes along a chromosome based on the following recombination frequencies
A-B 8%A-C 28%A-D 25%B-C 20%B-D 33%
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Determine the sequence of genes along a chromosome based on the following recombination frequencies
A-B 8%A-C 28%A-D 25%B-C 20%B-D 33%
![Page 36: GENETICS PRACTICE. R r Y yR r Y y HETEROZYGOUS ROUND YELLOW WHAT ARE THE POSSIBLE GAMETES THIS PARENT CAN MAKE ? Each gamete should get one of each kind](https://reader036.vdocuments.net/reader036/viewer/2022070400/56649f115503460f94c23b12/html5/thumbnails/36.jpg)
Determine the sequence of genes along a chromosome based on the following recombination frequencies
A-B 8%A-C 28%A-D 25%B-C 20%B-D 33%
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RY Ry rY ry
RY
Ry
rY
ry
Sign of a ______________________ cross is a_____________ ratio in offspring.9:3:3:1
____ Round & Yellow
____ Round & green
____ Wrinkled & yellow
____ wrinkled & green
9
3
3
1
RRYY RRYy RrYY RrYy
RRYy RRyy RrYy Rryy
RrYY RrYy rrYY rrYy
RrYy Rryy rrYy rryy
heterozygous dihybrid
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The genotype of F1 individuals in a tetrahybrid cross is AaBbCcDd X AaBbCcDdAssuming independent assortment of these four genes, what are the probabilities that F2 offspring will have the following genotypes?
aabbccdd ______________________________AaBbCcDd ______________________________AaBBCCdd ______________________________