Practice: Wild type fruit flies have red eyes. A white-eyed female fly is crossed with a red-eyed male fly. All of the females from the cross are red-eyed and all of the males, white-eyed. What type of inheritance pattern is this?
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Introduction to Mendel's Experiments | 7 mins | 0 completed | Learn |
Genotype vs. Phenotype | 17 mins | 0 completed | Learn |
Punnett Squares | 13 mins | 0 completed | Learn |
Mendel's Experiments | 26 mins | 0 completed | Learn |
Mendel's Laws | 16 mins | 0 completed | Learn |
Monohybrid Crosses | 17 mins | 0 completed | Learn |
Test Crosses | 15 mins | 0 completed | Learn |
Dihybrid Crosses | 21 mins | 0 completed | Learn |
Punnett Square Probability | 26 mins | 0 completed | Learn |
Incomplete Dominance vs. Codominance | 18 mins | 0 completed | Learn |
Epistasis | 7 mins | 0 completed | Learn |
Non-Mendelian Genetics | 14 mins | 0 completed | Learn |
Pedigrees | 6 mins | 0 completed | Learn |
Autosomal Inheritance | 21 mins | 0 completed | Learn |
Sex-Linked Inheritance | 41 mins | 0 completed | Learn |
X-Inactivation | 9 mins | 0 completed | Learn |
Concept #1: Sex-Linked Inheritance
Concept #2: Sex-Linked Inheritance
Practice: Wild type fruit flies have red eyes. A white-eyed female fly is crossed with a red-eyed male fly. All of the females from the cross are red-eyed and all of the males, white-eyed. What type of inheritance pattern is this?
Practice: When Thomas Hunt Morgan crossed red-eyed F1 generation flies to each other, the F2 generation included both red- and white-eyed flies. Remarkably, all the white-eyed flies were male. What was the explanation for this result?
Concept #3: Sex-Linked Inheritance
Concept #4: Sex-Linked Inheritance
Example #1: What is the inheritance pattern of the following pedigree?
Practice: The following pedigree is for the X-linked-recessive trait for color blindness. Using XN for the normal allele and Xn for the color blindness allele, fill in the top half of the boxes/circles with the genotype. Also, fill in the bottom half of the boxes/circles with the phenotype (Normal vision or color blind). If it is impossible to know for certain a specific allele in the genotype, then place a “?” to represent the allele that is in question.
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