1) Plant cells have a membrane? a) True b) False 2) animal cells have a membrane? a) True b) False 3) animal cells have a cell wall? a) True b) False 4) plant cells have a cell wall? a) True b) False 5) All cells have cytoplasm? a) True b) False 6) All cells have chloroplasts? a) True b) False 7) All cells have organelles? a) True b) False 8) Mitochondria and ribosomes are organelles in cells a) True b) False 9) ribosomes are where proteins are synthesised a) True b) False 10) Only animal cells have chromosomes in the nucleus? a) True b) False 11) DNA hasa double helix structure? a) True b) False 12) genes are a part of chromosomes? a) True b) False 13) A gene can code for several types proteins a) True b) False 14) genes control which proteins a cell makes a) True b) False 15) genes are not found in plant cells? a) True b) False 16) meiosis produces cells in the body? a) True b) False 17) meiosis produces sperm and egg cells a) True b) False 18) meiosis does not produce pollen or ova in plants? a) True b) False 19) mitosis can produce either 2 or 4 daughter cells? a) True b) False 20) meiosis can produce 4 identical cells? a) True b) False 21) mitosis can produce identical cells? a) True b) False 22) meiosis produces variation? a) True b) False 23) another name for sex celss is gametes? a) True b) False 24) ova are male sex cells in plants? a) True b) False 25) A zygote has a whole set of chromosomes? a) True b) False 26) A zygote will develop into an embryo and then a foetus? a) True b) False 27) A zygote develops into an embryo because its cells divide by meiosis? a) True b) False 28) Human sperm contains 23 pairs of chromosomes? a) True b) False 29) A human egg contains 23 single chromosomes? a) True b) False 30) A zygote carries 1 set of chromosomes from each parent? a) True b) False 31) Chromosomes swap sections of their DNA during meiosis? a) True b) False 32) Mitosis makes sex cells? a) True b) False 33) mitosis makes cells for growth and repair? a) True b) False 34) The first stage in the cell cycle (cell division) is the number of organelles increases? a) True b) False 35) When a cell divides the cytoplasm divides up before the chromosomes? a) True b) False 36) Meiosis only takes place in animals in the testes and ovaries? a) True b) False 37) Sperm and egg fuse to make a zygote? a) True b) False 38) DNA is found in the cytoplasm and nucleus? a) True b) False 39) RNA is forund in the cytoplasm and nucleus? a) True b) False 40) DNA is a genetic code for proteins? a) True b) False 41) DNA is made up of 2 different bases? a) True b) False 42) Adenine pairs with thymine? a) True b) False 43) cytosine pairs with guanine? a) True b) False 44) sometimes adenine pairs with guanine? a) True b) False 45) proteins can be made inside or outside the nucleus? a) True b) False 46) information stored in genes is transferred to the cytoplasm by mRNA? a) True b) False 47) mRNA means messenger RNA? a) True b) False 48) The ribosomes are found in the nucleus? a) True b) False 49) Ribosomes attach themselves to strands of DNA? a) True b) False 50) The sequence of bases in a gene decides which amino acids will link up to make proteins? a) True b) False 51) Sets of four base pairs code for one amino acid? a) True b) False 52) A triplet code is made of 3 base pairs? a) True b) False 53) Amino acids join together to make polypetides? a) True b) False 54) Another name for polypetide is protein? a) True b) False 55) Triplet codes on mRNA are decoded by ribosomes? a) True b) False 56) A sten cell can develop into any other type of cell? a) True b) False 57) The cells in an embryo contain different genes? a) True b) False 58) An embryo up to the 8 cell stage has no specialised cells? a) True b) False 59) Embryonic stem cells are onlyuseful in the 8 cell stage? a) True b) False 60) In specialised cells some genes are missing? a) True b) False 61) In cells some genes are switched off? a) True b) False 62) One gene codes for one protein? a) True b) False 63) Sten cells are found in adults? a) True b) False 64) Stem cells from adults are just as useful as embryonic stem cells? a) True b) False 65) Stem cells can treat diseases but not repair tissues? a) True b) False 66) A clone is a genetically identical copy of its parent? a) True b) False 67) Dolly the sheep was a clone? a) True b) False 68) Therapeutic cloning is uses egg cells and the nucleus of a cell? a) True b) False

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