Psychology 1000 Lecture Notes - Lecture 4: Molecular Cloning, Human Cloning, Genetic Counseling

• School: Western University
• Department: Psychology
• Course: Psychology 1000
• Professor: Laura Fazakas- De Hoog

Document Summary

Cells 100 trillion in the body (except red blood cells) Arranged in 23 pairs (1 of each pair from each parent) Chromosome contain numerous genes in 2 long twisted strands. Genes segments of dna that have instructions to make protein (the building blocks of life) Genotype i(cid:374)di(cid:448)idual"s spe(cid:272)ifi(cid:272) ge(cid:374)eti(cid:272) (cid:373)akeup, prese(cid:374)t at (cid:271)irth and never changes. Phenotype observable characteristics produced by genes. Dominant genes if the gene received by either parent is dominant the trait will be expressed. Recessive genes if the gene is recessive, the trait will not be expressed unless the paired gene from the other parent is also recessive. Mother (blue gene) + father (blue gene) child has blue eyes. Eye color - mother (brown gene) + father (blue gene) child has brown eyes. Polygenic effects- numerous gene combine to determine a trait. Genetic counseling identify whether a person has the specific genes that will result in certain diseases. Splice and combine dna from 2 different organisms.