Variation, Reproduction and New Technology

Variation, Reproduction and New Technology

6.1 Inheritance

• Organisms have similar characteristics to their parents.
• Genes are passed in sex cells from parents to offspring.
• Genes control the characteristics of your body.
• In most body cells, the chromosomes are in pairs.

6.2 Types of Reproduction

• In asexual reproduction there is no joining of gametes.
• Clones are produced by asexual reproduction.
• Clones are identical copies of one parent.
• Sexual reproduction involves two parents and leads to variety in the offspring.

6.3 Genetic and environmental differences

• Differences in individuals of the same kind can be due to their genes, the environment or both.
• Plants may be affected by the lack of light, nutrients or space to grow.
• Human development may be affected during pregnancy. If the mother smokes or drinks a lot of alcohol , the baby may have a small…