Survey
* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project
Download Practicing genetics stuff
Document related concepts
no text concepts found
Transcript
GENETICS PRACTICE WHAT ARE THE POSSIBLE GAMETES THIS PARENT CAN MAKE? HETEROZYGOUS ROUND YELLOW Each gamete should get one of each kind of gene RrYy ___________ ____________ _____________ _____________ PRACTICE MAKING GAMETES WHAT ARE THE POSSIBLE GAMETES THIS PARENT CAN MAKE? HETEROZYGOUS ROUND YELLOW Each gamete should get one of each kind of gene RrYy R Y r y rY Ry ___________ ____________ _____________ _____________ RY Ry rY RY RRYY RRYy RrYY ry RrYy Ry RRYy RRyy RrYy Rryy rY RrYY RrYy rrYY rrYy RrYy Rryy rryy ry rrYy ____ Round & Yellow ____ Round & green ____ Wrinkled & yellow ____ wrinkled & green Sign of a ______________________ cross is a _____________ ratio in offspring. RY Ry rY ry RY RRYY RRYy RrYY RrYy ____ 9 Round & Yellow RRYy RRyy RrYy Rryy 3 Round & ____ green rY RrYY RrYy rrYY rrYy 3 Wrinkled ____ & yellow ry RrYy Rryy 1 wrinkled ____ & green Ry rrYy rryy heterozygous dihybrid cross is a Sign of a ______________________ _____________ 9:3:3:1 ratio in offspring. ____ 9 ____________ dominant TRAIT 1 ; ____________ dominant TRAIT 2 3 ____________ dominant TRAIT 1; _____________ recessive ____ TRAIT 2 ____ recessive TRAIT 1; _____________ dominant TRAIT 2 3 ____________ ____ TRAIT 2 1 ____________ recessive TRAIT 1; _____________ recessive 9:3:3:1 __________ratio is a clue that it’s a HETEROZYGOUS TWO gene _________________________cross (DIHYBRID) What is the probability? AaBBCcdd parent genome What is the probability of producing a gamete with this gene combination? ABCd _____________________________ AbCd ______________________________ abcd _______________________________ What is the probability? AaBBCcdd X AabbCCDd parents What is the probability of producing a offspring with this gene combination? AABbCcDd _____________________________ AaBBccdd______________________________ aaBbccDd_______________________________ What is the probability? AaBBCcdd parent genome What is the probability of producing a gamete with this gene combination? ABCd _____________________________ Abcd ______________________________ Abcc _______________________________ What is the probability? AaBBCcdd X AabbCCDd parents What is the probability of producing a offspring with this gene combination? AABbCcDd _____________________________ AaBBccdd______________________________ aaBbccDd_______________________________ PEDIGREES = male; doesn’t show trait = female; doesn’t show trait = shows trait = carrier; doesn’t show trait Write the genotype of each individual next to the symbol. 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? 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 The inheritance of the disorder in II-3 from his father rules out what form of inheritance? http://www.mybookezzz.org/ebook.php?u=aHR0cDovL21jYi5iZXJrZWxleS5lZHUvY291cnNlcy9tY2I0MS9wcmFjdGljZV9wcm9ibGVtc19hbnN3LnBkZgpQcmFjdGljZSBwc m9ibGVtcyAod2l0aCBhbnN3ZXJzKSBUaGlzIGlzIHRoZSBkZWdyZWUgb2YgZGlmZmljdWx0eSBvZiAuLi4= Is this trait inherited as AUTOSOMAL OR X-LINKED? DOMINANT or RECESSIVE? http://www.mansfield.ohio-state.edu/~sabedon/biol1128.htm#A1 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? A Wild type fruit fly (heterozygous for gray body and normal wings) is mated with a black fly with vestigial wings. OFFSPRING: 778- wild type 785- black-vestigial 158- black- normal wings 162- gray body-vestigial wings Is it 9:3:3:1? Is it 3 Wild type : 1 black vestigial? A Wild type fruit fly (heterozygous for gray body and normal wings) is mated with a black fly with vestigial wings. OFFSPRING: 778- wild type 785- black-vestigial 158- black- normal wings 162- gray body-vestigial wings A Wild type fruit fly (heterozygous for gray body and normal wings) is mated with a black fly with vestigial wings. OFFSPRING: 778- wild type 785- black-vestigial 158- black- normal wings 162- gray body-vestigial wings What is the recombination frequency between these genes? A Wild type fruit fly (heterozygous for gray body and normal wings) is mated with a black fly with vestigial wings. OFFSPRING: 778- wild type 785- black-vestigial 158- black- normal wings 162- gray body-vestigial wings What is the recombination frequency between these genes? A Wild type fruit fly (heterozygous for gray body and normal wings) is mated with a black fly with vestigial wings. OFFSPRING: 778- wild type 785- black-vestigial 158- black- normal wings 162- gray body-vestigial wings What is the recombination frequency between these genes? 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 eyes 751- black body/purple eyes 49- gray body/purple eyes 45- black body/red-eyes What is the recombination frequency between these genes? 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 eyes 751- black body/purple eyes 49- gray body/purple eyes 45- black body/red-eyes What is the recombination frequency between these genes? 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 eyes 751- black body/purple eyes 49- gray body/purple eyes 45- black body/red-eyes What is the recombination frequency between these genes? 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% 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% 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% 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% 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% 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 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% 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% 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% RY RY Ry rY RRYY RRYy RrYY ry RrYy ____ 9 Round & Yellow RRYy RRyy RrYy Rryy 3 Round & ____ green rY RrYY RrYy rrYY rrYy 3 Wrinkled ____ & yellow ry RrYy Rryy 1 wrinkled ____ & green Ry rrYy rryy heterozygous dihybrid Sign of a ______________________ cross is a 9:3:3:1 _____________ ratio in offspring. The genotype of F1 individuals in a tetrahybrid cross is AaBbCcDd X AaBbCcDd Assuming independent assortment of these four genes, what are the probabilities that F2 offspring will have the following genotypes? aabbccdd ______________________________ AaBbCcDd ______________________________ AaBBCCdd ______________________________
Related documents