Lab Exam Flashcards

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1
Q

F to C

A

(F - 32)/1.8

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2
Q

C to F

A

(C x 1.8)+32

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3
Q

Types of tests for reducing simple sugars

A

-benedicts
- iodine test–IKI
-lipids test–methylene blue
-biuret test–biuret

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4
Q

Hypertonic

A

-High concentration

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5
Q

Hypotonic

A

-low concentration

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6
Q

isotonic

A

-equal concentration

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7
Q

what happens to cells during diffusion?

A

-the movement of the molecule across the cell membrane
-higher to lower

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8
Q

what happens to cells during osmosis?

A

-the diffusion of a water molecule across a selectively permeable membrane
-higher to lower

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9
Q

plant cells

A

-rigid walls chloroplasts
-nucleus on side

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10
Q

animal cells

A

-no walls
-nucleus in center

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11
Q

what is pH

A

-expresses acidity or alkalinity
-7 = nutral
-under 7 acidic
-above 7 base

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12
Q

nondisjunction

A

-the failure of one or more pairs of homologous chromosomes

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13
Q

autosomal recessive

A

-received two copies of an autosomal gene, one copy from each parent

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14
Q

autosomal dominant

A

-abnormal gene from one parent

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15
Q

x linked recessive

A

-always expressed in males and in females who are homozygous

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16
Q

x linked dominant

A
  • dominant gene is carried on the X chromosome
17
Q

DNA electrophoresis pos and neg

A
  • moves towards positive
18
Q

hardy Weinburg 5 conditions

A

-very large population
-no immigration or emigration
-no mutations
-random mating
-no natural selection

19
Q

what does hardy weinburg teach us

A

-population’s allele and genotype frequencies will remain constant throughout generations

20
Q

why is detergent used in dna extraction

A

-Separate the lipids and fats from DNA

21
Q

why is salt used in DNA extraction?

A

-help protect the negatively charged phosphate groups

22
Q

Turner syndrome

A

-one sex chromosome
-XO

23
Q

Poly-X syndrome

A

-three x chromosomes
-XXX

24
Q

Klinefelter syndrome

A
  • XXY
25
Q

Jacob syndrome

A

-XYY

26
Q

Mitosis

A

-occurs in diploid and haploid cells
-one division
-daughter cells = 2

27
Q

miosis

A

-occurs in diploid
-two divisions
-daughter cells = 4

28
Q

volume

A

-liter

29
Q

mass

A

-grams

30
Q

lenth

A

-meter