DNA Flashcards

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1
Q

What structure is DNA

A

Double helix

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2
Q

How many chromosomes in a human body

A

46

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3
Q

What does DNA stand for

A

Deoxyribonucleic Acid

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4
Q

What are nucleotides made of

A

Deoxyribose sugar, phosphate, and one base

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5
Q

What are the bases in DNA

A

Adenine, thymine, guanine, and cytosine

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6
Q

What are chromosomes

A

DNA wrapped in proteins

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7
Q

What are reproductive cells called (humans)

A

Gametes

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7
Q

What are pairs of chromosomes called

A

Homologous chromosomes

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8
Q

How many chromosomes do we get from each parent

A

23

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8
Q

What is the first step in DNA replication

A

The DNA starts to unzip

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9
Q

What is the second step of DNA replication

A

Copying of the DNA molecules begin with complementary bases attaching to both strands of the DNA

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9
Q

What is the order in which the amino acids begin then is followed by what they make

A

Amino acids, proteins, cells, tissues, organs, organisms

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10
Q

What are codons

A

Codons are a 3 letter code made by DNA base pairs

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11
Q

What do codons make

A

Codons make amino acids

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12
Q

What is a gene

A

A gene is a pack of DNA passed down through a generation

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13
Q

What are base pairs - what are the pairs

A

They are complementary bases that pair together - A,T and C,G

14
Q

What can genes code for

A

Hair colour, eye colour, personality traits like anger issues