IB35ACS Study Guide

O wilson fired for his work social insects help sister

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: ion depends on whether the allele is inherited by the mother and father o Example- Prader- Willi syndrome and angelman syndrome (chromosome 15 deletions) Angelman Syndrome o only functioning copy is the father o Symptoms- Development delay, speech impairment, puppet like movements, seizures of laughter, mental retardation. Prader- Willi syndrome: o Only functioning copy is the mother o Weak as infants, trouble sucking, by age 4- 5 uncontrollable appetite, obesity, mental retardation Turner Syndrome: o monosomy of the X chromosome o phenotypically female o affect on behavior depends on parental origin of the X o paternally derived o maternally derived Chromosomes: 23 pairs, Autosomes/ Sex Chromosomes Biological Sex o Mammals: Female is XX o Male is XY o Birds: Female is ZW o Male is ZZ o Heterogametic*- refers to the sex of a species in which the sex chromosomes are not the same. X Chromosome o Inactivation- Barr Bodies o Dosage compensation between males and females CC the cloned cat X Chromosome o 1098 genes o contains...
View Full Document

{[ snackBarMessage ]}

Ask a homework question - tutors are online