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Biology DNA > DNA > Flashcards

DNA Flashcards

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AP® Biology flashcards Biology 101 flashcards
1
Q

What is Deoxyribonucleic acid (DNA)

A

A double helix made of nucleotides

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2
Q

What is the Watson crick model

A

The double helix structure of the DNA molecule

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3
Q

What is the phosphate group

A

One of the parts that make up a nucleotide

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4
Q

What are nitrogen rich bases

A 
Parts of the nucleotide: 
Guanine 
Cytosine 
Adenine 
Thymine
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5
Q

What does DNA stand for

A

Deoxyribonucleic acid

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6
Q

How do you spell the D work

A

Deoxyribonucleic

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7
Q

Who are the 4 important people and what did they do

A

Rosalind Franklin
Maurice Wilkins

Helped understand

James Watson
Francis Crick

Created the Watson crick model

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8
Q

What are chromosomes

A

Long, thin threadlike structures found in the nuclei of all the cells in the human body

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9
Q

What are chromosomes made up of

A

A string of DNA that wraps around beads of protein

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10
Q

How many chromosomes in your body

A

46

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11
Q

How many of the chromosomes in your body, sex chromosomes

A

2

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12
Q

What is a male

A

XY

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13
Q

What is a female

A

XX

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14
Q

What are the other 44 chromosomes called

A

Autosomes

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15
Q

How many autosome S are there

A

44

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16
Q

How many pairs do autosomes go into

A

22

17
Q

What are the chromosomes in each autosome pair called

A

Homologous (the same)

18
Q

Homologous chromosomes are……

A

The same length
Have genes for particular characteristics
Have a structure called a centromere

19
Q

Where is the centromere

A

The point on a chromosome

20
Q

What are genes

A

A unit of heresy which is transferred from a parent to offspring

21
Q

What is a karyotype

A

It shows the pairs of chromosomes for a human cell

22
Q

What is a nucleotide

A

A compound consisting of a nucleoside linked to a phosphate group

23
Q

What does A stand for. Spell it

A

Adenine

24
Q

What does T stand for. Spell it

A

Thymine

25
Q

What does C stand for. Spell it

A

Cytosine

26
Q

What does G stand for. Spell it

A

Guanine

27
Q

What matches with T

A

A

28
Q

What matches with A

A

T

29
Q

How many number of genes on a chromosomes

A

250-2000

30
Q

What matches with C

A

G

31
Q

What matches with G

A

C

32
Q

How many sex chromosomes do you have

A

1 pair

33
Q

What become the genetic code

A

T,A,C,G

34
Q

What is a nucleotide. Explain drawn example

A

Top - phosphate
Bottom - sugar
Side - base

35
Q

What is the difference between a gene and a chromosome

A

DNA is in genes

Genes are on the chromosomes

36
Q

How many hydrogen bonds do the pairs of the bases have

A

T and A - 2

G and C -3

Biology DNA (2 decks)

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