Atypical sex chromosome patterns

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Atypical sex chromosome patterns by Mind Map: Atypical sex chromosome patterns

1. Turner's Syndrome

1.1. Absence of one or two X chromosomes

1.2. 45 chromosomes instead of 46

1.3. Characteristics

1.3.1. Physical Characteristics Do not have menstrual cycle Sterile -Ovaries fail to develop Do not develop breasts Low ears Webbed Neck High hip to waist ratio Appearance of pre pubescent girl

1.3.2. Psychological characteristics Higher than average reading ability lower performance in mathematical tasks socially immature Trouble fitting in

2. Klinefelter's syndrome

2.1. Anatomical appearance of a male

2.2. Additional X chromosome

2.2.1. XXY

2.3. Biological males

2.4. Characteristics

2.4.1. Psychological characteristics Poorly developed language and readingg skills Passive and shy Lack interest in sexual activity Memory and problem solving difficulties

2.4.2. Show physical characteristics (female characteristics Reduced body hair Breast development at puberty more prone to breast cancer Rounding of body contours Underdeveloped Genitals Problems with coordination

3. AO3

3.1. Nature Vs Nurture

3.1.1. Stduies of these individuals are useful for nature/nurture debate

3.1.2. contribute to our understanding of gender development

3.1.3. Allows us to compare physiological and behavioural characteristics to normal males and feales

3.1.4. This suggests that nature has a powerful effect on psychology and behaviour Genetic make up can determine physiology, behaviour and psychology

3.2. Environmental Explanations

3.2.1. Cant establish cause and effect Effects may be caused by social and environmental issues May be treadted differently because the way that they look, might now fit in or get bullied Social immaturity may be cause due to their treatment as immature due to prepubescent look.

3.3. Practical application

3.3.1. Research is much more likely to lead to earlier diagnosis This will result in much more positive futures for people with these diseases Australian study

3.4. Generalising findings

3.4.1. Atypical individuals are an unrepresentative sample of the population

3.4.2. 2/3 do not know that they have it and only a small percentage has been studied.