RUFF! MY EARS ARE DOMINANT! Dihybrid Crosses - Problem 2 THIS ONE ISN'T REAL (DOG EARS / COLORING ISN'T CONTROLLED BY A SINGLE GENE!) The allele for floppy ears (F) is dominant over the allele for pointed ears. The allele for grey markings (G) is dominant over the allele for brown markings. STEP 2 Parent 1 is homozygous recessive for ear type and homozygous dominant for fur markings. Parent 2 is heterozygous for both traits. Work out the possible offspring genotypes and phenotypes and give the expected probability of each phenotype. WORK OUT THE PARENT GENOTYPES AND GAMETE ALLELES. FOIL reminder! Outer STEP 1 Parent 1 genotype: Parent 1 gametes: FG, F4,FG Parent 2 genotype: Fr Parent 2 gametes: FF, FGrifg FFGg FfGg FFGg FF G g First Dihybrid Crosses - Problem 2 PUT THE PARENT ALLELES IN EACH GAMETE ACROSS THE TOP AND SIDE OF THE GRID. F F G g F F G g F F G g FFG BbYy Inner Last OH YEAH? WELL MY FUR MARKINGS ARE DOMINANT! Emmatheteachie 2020 STEP 3 READ ACROSS & DOWN TO WORK OUT OFFSPRING GENOTYPE. STEP 4 T THE FIGURE OUT THE OFFSPRING PHENO- TYPES. STEP 5 WORK OUT THE PROBABILITY OF EACH OFFSPRING PHENOTYPE. Gray markings & floppy ears = FF G C F F G G FFGG FFGG & pointed ears = Brown markings 0/16 & floppy ears = 8/16 9/16 Brown markings 0/16 & pointed ears = Emmathe teachie 2020 Floppy lars-F or F Grey markings or GG Pointed eacus Brown mu gg
RUFF! MY EARS ARE DOMINANT! Dihybrid Crosses - Problem 2 THIS ONE ISN'T REAL (DOG EARS / COLORING ISN'T CONTROLLED BY A SINGLE GENE!) The allele for floppy ears (F) is dominant over the allele for pointed ears. The allele for grey markings (G) is dominant over the allele for brown markings. STEP 2 Parent 1 is homozygous recessive for ear type and homozygous dominant for fur markings. Parent 2 is heterozygous for both traits. Work out the possible offspring genotypes and phenotypes and give the expected probability of each phenotype. WORK OUT THE PARENT GENOTYPES AND GAMETE ALLELES. FOIL reminder! Outer STEP 1 Parent 1 genotype: Parent 1 gametes: FG, F4,FG Parent 2 genotype: Fr Parent 2 gametes: FF, FGrifg FFGg FfGg FFGg FF G g First Dihybrid Crosses - Problem 2 PUT THE PARENT ALLELES IN EACH GAMETE ACROSS THE TOP AND SIDE OF THE GRID. F F G g F F G g F F G g FFG BbYy Inner Last OH YEAH? WELL MY FUR MARKINGS ARE DOMINANT! Emmatheteachie 2020 STEP 3 READ ACROSS & DOWN TO WORK OUT OFFSPRING GENOTYPE. STEP 4 T THE FIGURE OUT THE OFFSPRING PHENO- TYPES. STEP 5 WORK OUT THE PROBABILITY OF EACH OFFSPRING PHENOTYPE. Gray markings & floppy ears = FF G C F F G G FFGG FFGG & pointed ears = Brown markings 0/16 & floppy ears = 8/16 9/16 Brown markings 0/16 & pointed ears = Emmathe teachie 2020 Floppy lars-F or F Grey markings or GG Pointed eacus Brown mu gg
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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check if my answers are correct, and answer the questions.
Transcribed Image Text:RUFF! MY
EARS ARE
DOMINANT!
Dihybrid Crosses - Problem 2
OH YEAH? WELL
THIS ONE ISN'T REAL (DOG EARS / COLORING ISN'T CONTROLLED BY A SINGLE GENE!) MY FUR MARKINGS
ARE DOMINANT!
The allele for floppy ears (F) is dominant
over the allele for pointed ears.
The allele for grey markings (G) is dominant
over the allele for brown markings.
Parent 1 is homozygous recessive for ear type and homozygous dominant
for fur markings. Parent 2 is heterozygous for both traits.
Work out the possible offspring genotypes and phenotypes
and give the expected probability of each phenotype.
FOIL reminder!
WORK OUT THE PARENT GENOTYPES AND GAMETE ALLELES.
Outer
STEP 2
STEP 1
Parent 1 genotype:
Parent 1 gametes: ,,PG, F4,FGC
Parent 2 genotype:
FAGO
Parent 2 gametes: FG, F, FG,fg
FFGg FfGg FFGg FFGg
21
First
ff G a ff Gg FFGg FFG₂
| f g
BbYy
nner
Dihybrid Crosses - Problem 2
PUT THE PARENT ALLELES IN EACH GAMETE ACROSS THE TOP AND SIDE OF THE GRID.
Last
Emmatheteachie 2020
STEP 4
STEP 3
READ ACROSS &
DOWN TO WORK
OUT OFFSPRING GENOTYPE.
FIGURE OUT THE
OFFSPRING PHENO-
TYPES.
STEP 5
WORK OUT THE
PROBABILITY OF
EACH OFFSPRING PHENOTYPE.
Gray markings
& floppy ears =
8/16
Gray markings
FF G G FFGG FFGG FFGG & pointed ears =
9/16
Brown markings 0/16
& floppy ears =
Brown markings 0/16
& pointed ears =
Emmathe teachie 2020
or FF
Floppy ears =FF
Grey markings = Gg
or GG
Pointed eates=ff
Brown markings-
99
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