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LECTURE 5 ,[object Object],[object Object]

OBJECTIVES ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Lethal Genes ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

If we cross two heterozygotes, expect a 3:1 ratio in progeny But, in yellow x yellow cross, get: 2 yellow : 1 nonyellow Explanation:

Coat color of rodents P : Yellow X Yellow Yy Yy G : Y y Y y F1: YY Yy yY yy Yellow Yellow Yellow Grey (Die)

[object Object],[object Object],[object Object],[object Object],[object Object]

Inheritance of Huntington’s allele

Linked Genes ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

SEX DETERMINATION IN HUMANS ,[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object]

Sex Linked Genes ,[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object]

X c X c Color blind X X C Y Normal X C X c X C X c X c Y X c Y Parent gamete progeny 100% carrier 100% color blind X c X c X C Y

Transmission of sex-linked genes

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