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science year 10 > half yearlies > Flashcards

half yearlies Flashcards

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Biology 101 flashcards
1
Q

DNA

A

an acid which stores genetic information

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2
Q

Chromosomes

A

twisted strands of DNA

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3
Q

mutations

A

change in genetic code or structural DNA

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4
Q

mutagens

A

cause of mutations. can be due to environmental factors

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5
Q

chromatids

A

two long strands of chromosomes which divide in cell division

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6
Q

nucleotide

A

sugar, phosphate and base

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7
Q

helicase

A

enzyme which breaks hydrogen bonds during DNA replication

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8
Q

polymerase

A

protein which organises complimentary strands during DNA replication

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9
Q

mitosis

A

cell division through mother cells dividing and creating two daughter cells. only happens in the somatic cells

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10
Q

meiosis

A

cell division through sex cells. dividing into four cells and combining with female/ male cells

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11
Q

diploid number

A

46

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12
Q

haploid number

A

23

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13
Q

convection

A

heat is transferred through particles. less dense particles rise and denser particles sink

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14
Q

conduction

A

heat is transferred through particles. the collision of particles transfers heat

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15
Q

radiation

A

heat is transferred through waves in a vaccum

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16
Q

interpolate

A

using data given to predict a value within two known valuws

17
Q

extrapolate

A

using data to predict a value beyond the known values

18
Q

gene

A

a section of chromosome coding for a characteristic

19
Q

newtons second law

A

The acceleration of an object is proportional to and in the same direction as the net force acting on it

20
Q

inference

A

using data to predict what will happen through observation

21
Q

hypothesis

A

a guess that is backed up with scientific research

22
Q

prediction

A

a guess of what will happen regardless of research

23
Q

homologous

A

pair of 23 chromosomes in cells

24
Q

mass

A

how much matter an object contains

25
Q

weight

A

how much force is exerted on the object

26
Q

spindle fibres

A

protein structure used in mitosis to divide genetic material of a cell

27
Q

gamete

A

sex cells

science year 10 (3 decks)

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