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Leaving Certificate Biology Genetics & Inheritance 1 iQuiz SECOND Press the F5 Key to Begin, Then click on this Blue Box FIRST In PowerPoint 2007 if you see a Security Warning click HERE on Options… and then click on Enable this content
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Who is regarded as the father of genetics? PunnettMendel HarveyFleming
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Alternative forms of a gene are known as … AutosomesAlleles Junk genesHeterosomes
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The diploid number of chromosomes is restored as a result of … MitosisMeiosis Gamete formation Fertilisation
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Which of the following refers to the formation of an intermediate phenotype from the heterozygous condition? Incomplete dominance Linkage Independent assortment Segregation
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Alleles are not found in pairs in … Fertilised eggsMuscle cells Nerve cellsSperm cells
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The physical appearance of an individual as a result of the interaction of the genotype with the environment is called the … Gene expressionPhenotype GenotypeGene pharming
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Which of the following are possible gametes from TTRr? TR, TrTT, Rr TT, TRTT, Tr
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A person with blood type A may receive a transfusion of which type(s) of blood? A & ABA & O AB & OAB
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Which of the following is a cross which results in 75% of the progeny having the dominant phenotype? TT x ttTt x tt Tt x TtTT x Tt
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The process of changing the information in a gene into a protein and the effect that protein has on the organism is called … Gene pharmingGenotype Gene expressionPhenotype
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Two heterozygous tall plants, each with a recessive gene for dwarfism, are crossed. What proportion of their offspring will be dwarf? 1 in 21 in 4 1 in 31 in 8
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A normal man marries a woman who is a carrier of the recessive haemophilia gene, which is sex-linked. What proportion of their offspring could have the condition? 1 in 21 in 4 1 in 61 in 8
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What term is given to pieces of DNA that do not code for a protein and seem to have no function other than to separate genes? They are also known as junk genes. InteronsGenotype ExonsPhenotype
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A colour-blind man marries a woman with normal vision, whose father was colour blind. What are the chances that a son of theirs will be colour-blind? 75%100% 25%50%
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What ratio would you expect in a dihybrid cross between a parent heterozygous for both traits and a parent homozygous recessive for both traits (Independent assortment occurs). 9:3:3:11:1:1:1 1:13:1
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How did you do? Click this Blue Box to find out Genetics & Inheritance 1 iQuiz
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