Genetic Variation 3.0 / 5 based on 1 rating ? BiologyVariation and reproductionGCSEAQA Created by: AleenaCreated on: 04-01-13 18:24 What do your chromosomes determine? Whether you are female or male. 1 of 12 The 23rd pair are labelled? ** or XY 2 of 12 They are the 2 chriomosomes that decide whether... you turn out male or female 3 of 12 An allele that controls the development of a characteristic when it is present on only one of the chromosomes is a... dominant allele. 4 of 12 An allele that controls the development of characteristics only if the dominant allele is not present is a... recessive allele. 5 of 12 ) Chromosomes are made up of.. f large molecules of DNA (deoxyribo nucleic acid) which has a double helix structure. 6 of 12 What did Mendel realsie on his garden plot? noted how characteristics in plants were passed on from one generation to the next. 7 of 12 Mendel showed that the height characteristics in pea plants were determined by... separately inherited ("hereditary units") passed on from each parent. 8 of 12 Mendel reached... 3 important clonclusion 9 of 12 1. Characteristics in plants are determined by... genes 10 of 12 genes are passed on from.. both parents, one from each 11 of 12 genes can be dominant or recessive. If an individual has both the dominant and the recessive uit for a characteristic, the... dominant characteristic will be expressed. 12 of 12
Comments
No comments have yet been made