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Ccea Gcse Das Biology > Chromosome, Genes And DNA > Flashcards

Chromosome, Genes And DNA Flashcards

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1
Q

What are the 4 names of bases?

A

Adenine
Thymine

Guanine
Crytosine

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2
Q

What does one nucleotide consist of?

A

A base connected to a sugar and phosphate

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3
Q

What is the name of the structure of DNA?

A

Double Helix

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4
Q

What are genes?

A

They are short sections of chromosomes that control specific characteristics

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5
Q

Explain what a ‘Base triplet’ is

A

The bases in DNA are read in sequences of three. Each group of 3 bases is called a Base Triplet. Each Base Triplet codes for a certain amino acid.

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6
Q

In discovering the structure of DNA, who analysing the chemistry worked out that in terms of number of bases, A=T and C=G?

A

Chargaff

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7
Q

What did Chargaff discover about the structure of DNA?

A

In discovering the structure of DNA, who analysing the chemistry worked out that in terms of number of bases, A=T and C=G?

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8
Q

In discovering the structure of DNA, what did Franklin and Wilkins find?

A

Using X-Ray diffraction worked out the overall shape of the DNA molecule

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9
Q

Who found Using X-Ray diffraction worked out the overall shape of the DNA molecule?

A

Franklin and Wilkins

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10
Q

What did Watson and Crick discover about the structure of DNA?

A

By building models (modelling) worked out that A joined with T and C joined with G and the double helix structure

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11
Q

What are genes?

A

They are short sections of chromosomes that control specific characteristics

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12
Q

Explain what a ‘Base triplet’ is

A

The bases in DNA are read in sequences of three. Each group of 3 bases is called a Base Triplet. Each Base Triplet codes for a certain amino acid.

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13
Q

In discovering the structure of DNA, who analysing the chemistry worked out that in terms of number of bases, A=T and C=G?

A

Chargaff

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14
Q

What did Chargaff discover about the structure of DNA?

A

In discovering the structure of DNA, who analysing the chemistry worked out that in terms of number of bases, A=T and C=G?

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15
Q

In discovering the structure of DNA, what did Franklin and Wilkins find?

A

Using X-Ray diffraction worked out the overall shape of the DNA molecule

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16
Q

Who found Using X-Ray diffraction worked out the overall shape of the DNA molecule?

A

Franklin and Wilkins

17
Q

What did Watson and Crick discover about the structure of DNA?

A

By building models (modelling) worked out that A joined with T and C joined with G and the double helix structure

Ccea Gcse Das Biology (6 decks)

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