Variation, Genes and Reproduction
- Created by: isabella newsum
- Created on: 16-11-14 11:53
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- Variation, Genes, Chromosomes and DNA and Reprodcution
- Variation
- Genetic Variation
- Characteristics are determined by the genes inherited form their parents
- Passed on in Gametes
- Some genes from mother and some from father cause genetic variation
- Environmental Variation
- Where organisms live and grow causes differences of the same species
- Wide range of differences
- Genetic Variation
- Genes, Chromosomes and DNA
- The Nucleus contains the genetic material in the form of Chromosomes
- Human cells contains 23 pairs of chromosomes
- Chromosomes carry genes which control the development of different characteristics
- A gene is a short length of the chromosome which is a long length of DNA
- The DNA is coiled up to from arms of the chromosome
- A gene is a short length of the chromosome which is a long length of DNA
- Chromosomes carry genes which control the development of different characteristics
- Human cells contains 23 pairs of chromosomes
- The Nucleus contains the genetic material in the form of Chromosomes
- Reproduction
- Sexual Reproduction
- Involves the fusion of male and female gametes. As there are two parents, the offspring contain a mixture of their parents' genes
- Produces variation of the offspring
- Involves the fusion of male and female gametes. As there are two parents, the offspring contain a mixture of their parents' genes
- Asexual Reproduction
- Only one parent. There's no fusion of gametes, no mixing of chromosomes and no genetic variation between parent and offspring
- The offspring are genetically identical- clones
- Only one parent. There's no fusion of gametes, no mixing of chromosomes and no genetic variation between parent and offspring
- Sexual Reproduction
- Variation
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