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25 Cards in this Set
- Front
- Back
Genotype |
The genetic make-up of an organsm |
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Phenotype |
The physical characteristics of an individual e.g. hair, eye colour |
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Heterozygous |
When the alleles are different e.g. Hh |
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Homozygous |
When the alleles are the same e.g. HH,hh |
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Allele |
Different forms of a gene |
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Dominant |
A allele that will always show if present in the genotype |
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Recessive |
A allele that will only show if more than one of it is present in the genotype |
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Gene |
A unit of heredity, that determines some of the characteristics of the offspring |
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DNA |
DNA is a large molecule that resembles a double helix shape and is responsible for determining the physical characteristics of organisms. |
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Chromosome |
A structure found in the Nucleus of Cells that contains DNA and carries genes |
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Base Pairing Rule |
The double helix is held together by rungs that contain pairs of chemical called bases. The pairs are A+T and G+C |
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Trait |
Our characteristics and features that make us look and act a certain way. |
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Mitosis |
A type of cell division that produces new body cells. All the cells produced have the same genes as the original cell. |
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Meiosis |
Meiosis is the type of cell division that produces that produces new sex cells. All new cells formed are genetically different to each other |
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Sexual Reproduction |
The production of a new living organism by combining genetic information from two people of different sexes |
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Asexual Reproduction |
A type of reproduction that only requires one parent. The offspring are identical to the parent and to each other |
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Sex cell |
A sperm or egg. Only has half the amount of chromosomes to a body cell |
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Zygote |
A fertilised egg |
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Fertilisation |
The process of fertilizing an why, involving the fusion of make and female gametes to form a zygote. |
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Nucleus |
Inside the cell what the genetic material is found |
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How many chromosomes do we each have in our body? |
46 |
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Cell>_______________________ |
Cell>Nucleus>Chromosomes>DNA |
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Where in the cell is DNA found? |
In the chromosomes |
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What is a trait? |
All the things that make us different like eye colour, hair colour, skin colour etc |
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Do we have the same traits? |
No because we all have different genes. |