Which chemical are chromosomes and genes made from? , carbohydrates , proteins, DNA , fats, Which part of a cell contains the genetic material? , cytoplasm, nucleus, mitochondria, cell membrane, What word describe an organisms characteristics (physical features) i.e. a persons eye colour, genotype, phenotype, chromosome , allele, What word describe the combination of genes / alleles an organism has i.e. BB , genotype , phenotype, nucleus, DNA, B = allele for brown eyes. b = allele for blue eyes. A person with brown eyes has the alleles Bb. Is B dominant or recessive? , dominant , recessive, B = allele for brown eyes. b = allele for blue eyes. A person with brown eyes has the alleles Bb. Is b dominant or recessive? , dominant , recessive, What is the name of a piece of DNA which codes for a characteristic? , gene, nucleus , phenotype, genotype , What type of substance is made using the DNA code? , fat, protein , starch, sugar, A man has the alleles hh.  What word describes the alleles of the man? , homozygous , heterozygous , phenotype, The allele for having cystic fibrous is recessive (h). The allele for not having cystic fibrous is dominant (H). A man and woman both have Hh. What is the chance their child will have cystic fibrous? , 25 %, 50 %, 75 %, 100 %, Give one characteristic of the fish controlled only by the genes it has inherited from its parents , eye colour , scar, length, A cat breeder noticed that four kittens from one Siamese cat mother had a new blue colour at the tip of their tails. What has caused the new colour to appear? , Fertilization , Mitosis , Mutation , Give the combination of sex chromosomes present in a female cat. , YY, XX, XY, T = allele for tall. t = allele for short. A tall plant (TT) and short plant (tt) reproduce to produce 100 offspring. How many of these offspring would be tall?, 100, 75, 50, 25, 0, What is a mutation? , A change in a gene, Accidental damage to an organism , An organism with a new characteristic , The loss of a species , T = allele for tall. t = allele for short. A scientist crossed Plant 1 with Plant 2. All offspring were tall. Give the genotype of Plant 1., TT, Tt, tt, T = allele for tall. t = allele for short. A scientist crossed Plant 1 with Plant 2. All offspring were tall. Give the genotype of Plant 2., TT, Tt, tt.

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