DNA Protein Synthesis Replication. DNA carries a code for proteins.

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Presentation transcript:

DNA Protein Synthesis Replication

DNA carries a code for proteins

What are proteins used for?

DNA protein

DNA protein Stays in nucleus made by ribosomes

DNA messenger protein

1. One side of DNA is ‘transcribed’ to messenger RNA Messenger RNA is ‘translated’ to make proteins.

Replication: making copies of DNA so cell can divide into two new cells

Replication in Prokaryotes

Replication in Prokaryotes

Replication in Eukaryotes (they have a nucleus) Mitosis

Meiosis This replication makes Sperm or Egg cells for reproduction. Note they are all different.

Asexual reproduction No mixing of DNA You get the same organism

Sexual reproduction DNA is mixed to make new organism Egg and Sperm Plants

Sexual reproduction DNA is mixed to make new organism Egg and Sperm Fungi

Sexual reproduction DNA is mixed to make new organism Egg and Sperm Animals

Sexual reproduction DNA is mixed to make new organism Egg and Sperm Humans are Animals

Some organisms reproduce in different ways for different reasons.

Everything is fine. No reason to change.

Everything is fine. No reason to change. Tsunami or big waves. Coral is in pieces.

Everything is fine. No reason to change. Tsunami or big waves. Coral is in pieces. Environment changes. Rapid evolution needed.

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