F2 phenotype ratio

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#Id: 6328

#Unit 8. Inheritance Biology

XX-XO SEX DETERMINATION

The mechanism of sex determination in the grasshoppers studied by McClung

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#Id: 6329

#Unit 8. Inheritance Biology

XX-XY SEX DETERMINATION

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#Id: 6330

#Unit 8. Inheritance Biology

Pseudoautosomal 

Region Small region of the X and Y chromosomes that contains homologous gene sequences.

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#Id: 6331

#Unit 8. Inheritance Biology

ZZ-ZW SEX DETERMINATION

The female is heterogametic, and the male is homogametic. The ZZ-ZW system is found in birds, some reptiles, butterflies, some amphibians, and some fishes. 

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#Id: 6332

#Unit 8. Inheritance Biology

Genic sex determination  - Sex determination in which the sexual phenotype is specified by genes at one or more loci In mammals, a gene (SRY) located on the Y chromosome determines the male phenotype.

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#Id: 6333

#Unit 8. Inheritance Biology

Environmental Sex Determination