Biology- genetics

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What is an allele?
A version gene
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What is a nucleus?
The control center of the cell that contains genetic material
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What is a gene?
A section of DNA that gives instructions to a cell on how to make a protein
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What is a chromosome?
Long, thin structures in the nucleus of a cell that are made from molecules of DNA. They carry genes
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What is DNA?
A chemical that makes up chromosomes and carries the genetic code which controls development
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How many chromosomes do human's have?
46 chromosomes (23 pairs)
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What does recessive mean?
An allele that needs two copies to be expressed
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What is a carrier?
Somebody that carries the gene but doesn't express it
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Does Mitosis form unidentical cells?
No, it form identical cells?
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How many daughter cells does Meiosis have?
4
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How many daughter cells do Mitosis have?
2
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How many chromosomes do daughter cells of Meiosis have?
23
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What are 3 ethical objections to embryo screenings?
It can damage or kill embryos, embryos cannot consent, murder, encourages abortions of disabled children
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What are 3 reasons for embryo screenings?
It can prevent the birth of disabled children, the embryos can be used in stem cell treatment, allows parents to prepare for child
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Other cards in this set

Card 2

Front

What is a nucleus?

Back

The control center of the cell that contains genetic material

Card 3

Front

What is a gene?

Back

Preview of the front of card 3

Card 4

Front

What is a chromosome?

Back

Preview of the front of card 4

Card 5

Front

What is DNA?

Back

Preview of the front of card 5
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