"medium","totalMarks":4,"sourceTitle":null,"calculatorUse":null,"isCalculation":false,"parts":[{"id":"b7eb328e-4de0-4e76-a6f9-5de685c47fde","label":null,"content":"Explain how chromosomes and hormones interact to determine biological sex during development, and describe how a disruption to this typical process can result in a Difference in Sex Development (DSD).","markscheme":"- Explains that sex chromosomes (e.g., $XX$ or $XY$) establish the genetic sex of an embryo at fertilization B1\n- States that the SRY gene on the Y chromosome triggers the development of testes, which begin to secrete testosterone B1\n- Explains that prenatal hormones direct the sexual differentiation of internal and external genitalia (e.g., testosterone drives male development, absence of it leads to female development) B1\n- Describes how a disruption (DSD), such as Androgen Insensitivity Syndrome (AIS), occurs when an $XY$ individual's body cannot respond to testosterone, resulting in female physical characteristics despite male genetics B1","marks":4,"order":0,"markingRubric":null,"tableImages":[],"explanation":null,"options":[]}],"options":[],"explanation":null,"firstAttemptFullMarks":null,"walkthroughVideo":null},{"id":"b9e78187-9a93-45e9-8051-08786456503a","revisionId":"7121181e-b264-453e-bbd8-2abba08b6fc0","questionNumber":null,"questionType":"LA","specification":"","difficulty":3,"difficultyBand":"medium","totalMarks":4,"sourceTitle":null,"calculatorUse":null,"isCalculation":false,"parts":[{"id":"73bdcadb-fe03-4136-8dab-1f942abeddf6","label":null,"content":"Describe the role of hormones in sex and gender.","markscheme":"- Defines hormones as chemical substances that regulate the activity of target organs and play a role in physical sex development and gender-related behaviours B1\n- Describes the role of testosterone (e.g., produced in testes, controls male prenatal development of sex organs, linked to aggressive or competitive behaviours) B1\n- Describes the role of oestrogen (e.g., produced in ovaries, determines female sexual characteristics, regulates menstrual cycle, linked to emotional sensitivity) B1\n- Describes the role of oxytocin (e.g., bonding hormone, facilitates social bonding, empathy, and lactation/maternal behaviours) B1","marks":4,"order":0,"markingRubric":null,"tableImages":[],"explanation":null,"options":[]}],"options":[],"explanation":null,"firstAttemptFullMarks":null,"walkthroughVideo":null}],"subjectCode":"a_level_psychology__aqa","summaries":[{"id":"0390f993-46af-4203-bc48-aa0f0f787c28","difficultyBand":"hard","calculatorUse":null,"totalMarks":10},{"id":"0c841e0d-90e3-4e68-8cfd-b4b99782be82","difficultyBand":"medium","calculatorUse":null,"totalMarks":4},{"id":"10917e7a-286d-495f-8fc8-54a0eec5d0e3","difficultyBand":"medium","calculatorUse":null,"totalMarks":4},{"id":"18e54870-71a2-4b6d-a126-e338f55431b0","difficultyBand":"easy","calculatorUse":null,"totalMarks":2},{"id":"1ac2049f-55f5-4289-9397-8b9270f0d5fe","difficultyBand":"hard","calculatorUse":null,"totalMarks":10},{"id":"9339d317-9e02-4c46-b81e-5a504408f010","difficultyBand":"medium","calculatorUse":null,"totalMarks":4},{"id":"95018304-54dd-49b0-abae-1ea68b3f062b","difficultyBand":"medium","calculatorUse":null,"totalMarks":4},{"id":"9dfbb5db-deb6-4ed8-a7cd-e325eff37213","difficultyBand":"hard","calculatorUse":null,"totalMarks":16},{"id":"aa554d4d-b7e2-4b69-b0b3-7caa7876f37b","difficultyBand":"medium","calculatorUse":null,"totalMarks":4},{"id":"b9e78187-9a93-45e9-8051-08786456503a","difficultyBand":"medium","calculatorUse":null,"totalMarks":4},{"id":"bba97d31-bc8e-44de-8435-07573db4156b","difficultyBand":"hard","calculatorUse":null,"totalMarks":16},{"id":"ce09522b-b38a-4972-a9a8-ac718243af33","difficultyBand":"easy","calculatorUse":null,"totalMarks":2},{"id":"df11ec08-4787-4b9e-94e5-80fe893e27c4","difficultyBand":"hard","calculatorUse":null,"totalMarks":10}],"title":"Chromosomes, hormones and DSD","topicId":"744f9afc-7003-5fe3-ac03-fc122146c38

Chromosomes, hormones and DSD

Question 5

Chromosomes, hormones and DSD Questions

Chromosomes, hormones and DSD

Question 5

Chromosomes, hormones and DSD Questions