Biology 5.1 Inheritance 0.0 / 5 ? BiologyDNA and inheritanceGCSEOCR Created by: KarimahJCreated on: 01-12-17 15:16 Alleles different versions of the same gene 1 of 24 Asexual Reproduction reproduction which requires only one parent; results in clones. 2 of 24 continuous variation variation which can take any value between a minimum and a maximum 3 of 24 Diploid cells cells which contain two sets of chromosomes 4 of 24 discontinuous variation. characteristic which falls in distinct groups 5 of 24 dominant allele allele which controls the characteristics whenever it is present. 6 of 24 environmental variation variation caused by the environment 7 of 24 fertilisation joining together of two gametes 8 of 24 Gametes sex cells 9 of 24 Genetic cross variation caused by an organism’s genetic material 10 of 24 Genome all of the genetic material present in an organism 11 of 24 Genotype the combination of alleles present in an organism 12 of 24 Haploid cells cells which contain one pair of chromosomes 13 of 24 Heterozygous when two alleles are different. 14 of 24 Homozygous when two alleles are identical 15 of 24 Meiosis cell division which produces gametes 16 of 24 Mutation change in the sequence of DNA bases 17 of 24 Phenotype physical appearance of an organism. 18 of 24 Punnett square diagram used to show the possible genetic makeup of an offspring, based on the mother and fathers genes. 19 of 24 Recessive Allele gene whose characteristics are only expressed if two copies are present in the genotype . 20 of 24 Zygote fertilised egg. 21 of 24 Chromosome long thin structures that carry genes 22 of 24 DNA chemical that makes up our genes 23 of 24 Gene section of DNA that give the cell instructions about how to make one kind of protein 24 of 24
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