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9A inheritance @ajhs

9A Inheritance, breeding & genetics

QuestionAnswer
breed A set of animals that are in some way different from other members of the same species.
breeding To mate two organisms of the same species to produce offspring.
characteristics The features of an organism.
cross-breeding When different varieties or breeds are mated with one another.
DNA A large molecule that contains genes.
environment The surroundings of an organism.
environmental factors Things in an environment that can change something about an organism.
fertilisation Fusing of a male sex cell with a female sex cell.
gamete Scientific word for sex cell.
gene A length of DNA that controls one inherited characteristic of an organism.
genetic information The instructions that control your characteristics. These instructions are found on genes.
inherited Passed on to an organism from its parents.
ovary Part of the female reproductive organs in a plant. It contains ovules, each of which contains an egg cell.
ovule Contains egg cells in plants. Found in the ovary.
pollen The male sex cell (gamete) in plants.
pollen tube Tube that grows from a pollen grain down through the stigma and style and into the ovary.
pollination Transfer of pollen from an anther to a stigma.
resistant Something that is not affected by disease is said to be resistant to it.
seed Grows into a new plant. Made by conifers and flowering plants.
selective breeding When humans choose certain animals and plants that have useful characteristics and breed more of these organisms.
species A group of organisms that can reproduce with each other to produce offspring that will also be able to reproduce.
stigma Part of the female reproductive organs in a plant. It is where pollen lands.
variation The differences between things or organisms.
variety A set of plants that are in some way different from other members of the same species.
yield How much of something useful to humans that an organism produces.
Created by: johncl
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