BIOL 1000 Lecture Notes - Lecture 26: Thomas Hunt Morgan, Mendelian Inheritance, Allosome
17 May 2017
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Mendelian genes have specific loci on chromosomes: 2. A generation can be bred every two weeks. They have only 4 pairs of chromosomes populations: traits alternative to the wild type are called mutant type. In one experiment morgan mated male flies with white eyes(mutant) with female flies with red eyes (wild type: f1 generation all had red eyes, f2 generation showed the 3:1 red: white ratio, but only, males had white eyes. Half of males had red, half of males had white eyes: genes that thomas found were found on sex chromosomes, y chromoso(cid:373)e did(cid:374)"t ha(cid:448)e (cid:272)olor for e(cid:455)e ge(cid:374)e. In humans and some other animals there is a chromosomal basis of sex determination. *humans and most animals have an xy system: sex chromosomes have genes for many characters unrelated to sex, a gene located on either sex chromosome is called a sex linked gene.
