4-6 Inheritance Biology – 1.0 Figure 1 shows a cell from the small intestine. Figure 1 1.1 Which part of the cell contains chromosomes? Choose one part from the list. [1 mark] Cell membrane Cytoplasm Nucleus Mitochondria Chromosomes contain many genes. Genes have different forms. 1.2 What is the name given to different forms of a gene?............................................ [1 mark 1.3 Eye colour is controlled by genes. In a genetic diagram: B = brown • b = blue • The genotype of one individual is bb. Which words can be used to describe the genotype of this person? Choose two words from the list. [2 marks] Dominant Heterozygous Homozygous Recessive Phenotype Tobacco plants have 48 chromosomes. 1.4 State how many chromosomes do tobacco plant pollen cells have. [1 mark] _______________________________________________________________ 2.0 Mitosis and meiosis are of cell division. 2.1 For each feature in the table, tick () one box to show if the feature occurs: only in mitosis • only in meiosis. • [2 marks] Only in Only in Feature mitosis meiosis () () Produces new cells during growth and repair
4-6 Inheritance – Biology 1.0 Figure 1 shows a cell from the small intestine. Figure 1 1.1 Which part of the cell contains chromosomes? Choose one part from the list. [1 mark] Cell membrane Cytoplasm Nucleus Mitochondria 1.2 Chromosomes contain many genes. Genes have different forms. What is the name given to different forms of a gene?............................................ [1 mark 1.3 Eye colour is controlled by genes. In a genetic diagram: • B = brown • b = blue The genotype of one individual is bb. Which words can be used to describe the genotype of this person? Choose two words from the list. [2 marks] Dominant Heterozygous Homozygous Recessive Phenotype 1.4 Tobacco plants have 48 chromosomes. State how many chromosomes do tobacco plant pollen cells have. [1 mark] _______________________________________________________________ 2.0 Mitosis and meiosis are of cell division. 2.1 For each feature in the table, tick () one box to show if the feature occurs: • only in mitosis • only in meiosis. [2 marks] Feature Only in mitosis () Only in meiosis () Produces new cells during growth and repair
biology_separate_inheritance-topic-test-aqa.docx