Biology Inheritance and Genetics 0.0 / 5 ? BiologyDNA and inheritanceIGCSEAQA Created by: flissjonesssCreated on: 26-11-15 17:14 Natural Selection Species adapting to their surrounding in order to survive to reproduce 1 of 19 Meiosis Cell dividing to form gametes, sexual reproduction. Cell divides twice to form 4 gametes with a single set of chromosomes. 2 of 19 Mitosis Growth and repair. Assexual Reproduction. Copy of each chromosome made before so new cell has same info as each other. genes the same as parent cells. 3 of 19 DNA DeoxyriboNucleic Acid, the material that contains the information that determines inherited characteristics. 4 of 19 Deoxyribose sugar Sugar used in DNA to make up the "backbone". 5 of 19 Nucleotide Is made up of one sugar, a base and a phosphate group. 6 of 19 Complimentary base pairs A and T. C and G 7 of 19 Gene Segment of DNA that is located in a chromosome and that codes for a specific hereditary trait. 8 of 19 Chromosome A coiled structure of DNA and protein that forms in the cell nucleus during cell division. 9 of 19 Chromatids Two identical chromosomes that split and contain the same genetic material. 10 of 19 Centromere Hold 2 chromatids together 11 of 19 Diploid A cell that contains the full 46 chromosomes 12 of 19 Haploid Contains half the number (23) 13 of 19 Homologous pairing at meiosis and having the same structural features and pattern of genes. 14 of 19 Homozygous 2 of the same alleles 15 of 19 Hetrozygous 2 different alleles 16 of 19 Introns Do not code directly for a protein 17 of 19 Exon Code directly for a protein 18 of 19 Locus Location of a chromosome on a gene 19 of 19
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