Dna Flashcards

1
Q

DNA IS

A

A polymer

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2
Q

Four bases and pairs

A
Adenine 
Thymine
Cytosine 
Guanine 
Pairs
A+t
C+g
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3
Q

Structure of DNA is called

A

Double helix

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4
Q

Chromosomes are

A

Long, coiled up molecules of DNA

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5
Q

Use of detergent in extracting DNA

A

It breaks down the cell membrane to release the DNA

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6
Q

Use of salt in extracting DNA

A

It makes the DNA stick together

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7
Q

What does cold ethanol do

A

It makes the DNA detach itself from the be able to fish out the DNA

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8
Q

Alleles are

A

Different versions of the same gene

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9
Q

What are the two types of genes

A

Recessive and dominant

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10
Q

Genotype is

A

The combination of alleles you have

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11
Q

Phenotype is

A

The characteristics YOU display

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12
Q

inheritance of a single characteristic is

A

Called monohybrid intelligent

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13
Q

XX and XY

A

Males are XY

Female are XX

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14
Q

How does meiosis show variation

A

Meiosis has a combination of two organisms which each have a unique set of DNA

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15
Q

What is the human genome project

A

It is the global mission to find every single human gene.

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16
Q

Benefits of the project

A
  • CAN prevent diseases
  • testing for inherited diseases
  • new better medicines
17
Q

Drawbacks

A
  • increased stress
  • pressure to not have kids
  • discrimination