Edexcel Biology Unit 2 Quiz A quick quiz on Unit 2. 3.0 / 5 based on 13 ratings ? BiologyASEdexcel Created by: Ryan MartinCreated on: 30-04-12 19:25 In plant fertilisation, what is produced when one of the male nuclei fuses with the polar nuclei in the ovule? Endosperm 1 of 9 During Dawid and Sargent's example for differentiation, how is mRNA extracted from the cDNA? Reverse-Transcriptase reaction 2 of 9 In the mitosis core practical, what is the stain used called? Toludine blue 3 of 9 Woese (1971) classified animals into three groups: Bacteria, Eukaryota and_____? Archea 4 of 9 A gene pool is the number of different ______of genes in a population Alleles 5 of 9 In what stage of mitosis do spindle fibres contract? Anaphase 6 of 9 What causes crossing over during meiosis? Chiasma 7 of 9 In the general classification order, what stage comes after Kingdom? Phylum 8 of 9 What is the name of the reaction, involving the sperm, during fertilisation in mammals? Acrosome 9 of 9
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