If straight hair is dominant (H) and curly hair is recessive (h) what is the genotype shown? (1 Point), What allele is always expressed in the phenotype? (1 Point), What term is given to a genotype made up of two different alleles? (1 Point), Why do we not always see the same ratio of offspring that is expected? (1 Point), What structure produces the female sex cells in plants? (1 Point), What structure produces the male sex cell in plants? (1 Point), On the board draw a diagram showing the reflex arc pathway (2 Points), What is the CNS made up of? (1 Point), Give 4 examples of continuous variation and discrete variation (2 of each) (2 Points), Define the term polygenic inheritance (1 Point), Which term refers to the description of a characteristic of an organism? (1 Point), What area of the brain controls balance and co-ordination? (1 Point), Where is the medulla located and what does it control? (2 points), What does the cerebrum control? (1 point), What do neurones use to transmit signals? (1 Point), Describe how fertilisation occurs in flowering plants (2 Points), Describe how a hormone travels from where it is produced to where it has an effect (2 points), State the term used to describe the chromosome compliment of gametes. (1 point), Which organ is stimulated by glucose levels to produce insulin and glucagon? (1 point), If two parents, one truebreeding recessive for attached lobes and one heterozygous mate together, what chance do the F1 generation have of inheriting detached lobes? (2 points).

National 5 Unit 2.4 Zap Quiz

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