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Genetics

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Maddison Thiel

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Cards in this guide (6)
What are the remains of living things that have been preserved in the earth's crust

Fossils, although technically they are not preserved in the earths crust; the minerals in the bones and pore spaces have been replaced by other harder minerals which take much longer to weather.

There are a number of different fossilization processes. See this link :
How are Fossils Formed?

In which phase are chromosomes called chromatin

Interphase

By what process is the DNA code duplicated

replication

How many chromosomes are in a normal human body

There are 23 pairs of chromosomes in a normal human body which means 46 chromosomes. People with down's syndrome have 47 chromosomes.

During meiosis twin chromosomes split apart and move to the

poles

What form of asexual reproduction is shown here for a salamander

parthenogenesis

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