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!B1 - B3 > B1.2.1 - DNA > Flashcards

B1.2.1 - DNA Flashcards

1
Q

Where is DNA located in prokaryotic cells?

A

The nucleus

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2
Q

What is a chromosome?

A

A long molecule of DNA

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3
Q

How many chromosomes are there in each of your cells?

A

46

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4
Q

How many chromosomes do chickens have?

A

78

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5
Q

How many chromosomes do you inherit from your parents?

A

Half from each of them

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6
Q

What are the only organisms that share the same DNA?

A

Identical twins / clones

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7
Q

What is DNA arranged in?

A

Small sections

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8
Q

What are the short sections in DNA that code for a characteristic called?

A

Genes

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9
Q

What does a code that a gene contains create?

A

Specific proteins

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10
Q

What do the proteins made from the codes in genes determine?

A

How the cell functions

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11
Q

What binds to oxygen in red blood cells in order for it to be transported around the body?

A

Protein haemoglobin

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12
Q

What do the genes in an organism control?

A

What an organism looks like and how it functions

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13
Q

What is DNA made of?

A

2 strands

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14
Q

What are the strands in DNA joined by?

A

Bases

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15
Q

What shape do the strands in DNA form when twisted together?

A

Double helix

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16
Q

What are the monomers in DNA?

A

Nucleotides

17
Q

Why is DNA a polymer?

A

It is made up of many monomers

18
Q

What are nucleotides made of?

A

Deoxyribose sugar
Phosphate
Base

19
Q

What are the 4 bases in nucleotides called?

A

Adenine
Thymine
Guanine
Cytosine

20
Q

How do the strands of DNA hold together?

A

The bases from each strand bond with the bases on the other strand

21
Q

What is a base pair?

A

A pair of bases joined together, each from a different strand of the same DNA

22
Q

What is complementary base pairing?

A

The process of bases from different strands of the same DNA bonding together

23
Q

What does adenine combine with?

A

Thymine

24
Q

What does cytosine combine with?

A

Guanine

!B1 - B3 (44 decks)

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