PSYC 1000 Lecture Notes - Lecture 3: Tay–Sachs Disease, Punnett Square, Albinism
Document Summary
Each version of the gene: give an example of a gene and an allele. Gene hair color, eye color, hair type. 2 dominant alleles same allele on each chromosome (pp) The trait an organism shows (e. g. , red, disease, etc. : describe how to make a punnett square (i. e. , how many squares, what goes in each column of the square, etc. ). Albinism = a columns = mothers eggs // rows = fathers sperm. All pigmented = phenotype a a: draw a punnett square for a cross between two heterozygous individuals. 1/4 offspring are going to be homozygous dominant (aa) Many human disorders are controlled by a single gene, autosomal gene. An individual who has 1 recessive allele for disease, but no symptoms (don"t have the disease but have the ability to pass it to its offspring: what possible genotype(s) can a carrier have, list examples of recessive disorders. Lethal dominant disorder can remain if it doesn"t kill until after person has kids.
