Maths 0.0 / 5 ? ScienceChromosomesYears 7-9 (KS3)AQA Created by: Michael EzeCreated on: 31-10-23 18:06 Who invented chromosomes? Walther Flemming 1 of 12 What year as chromosomes discovered? 1879 2 of 12 What are chromosomes? thread-like structures located inside the nucleus of animal and plant cells 3 of 12 How are chromosomes structured? Each chromosome has two short arms called p arms and two long arms 4 of 12 How many years since chromosomes had been discovered? 144 5 of 12 How many chromosomes are in the human body? 46 chromosomes 6 of 12 What's an sex chromosome? a type of chromosome involved in sex determination 7 of 12 Who discovered sex chromosomes? Nettie Stevens 8 of 12 What year were they discovered? 1905 9 of 12 How is your gender decided through chromosomes? Two of the chromosomes (the X and the Y chromosome) determine your sex as male or female when you are born. 10 of 12 What is a gene? the basic physical and functional unit of heredity 11 of 12 What is an mutation? a change in the DNA sequence of an organism 12 of 12
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