Lab Exam Flashcards
F to C
(F - 32)/1.8
C to F
(C x 1.8)+32
Types of tests for reducing simple sugars
-benedicts
- iodine test–IKI
-lipids test–methylene blue
-biuret test–biuret
Hypertonic
-High concentration
Hypotonic
-low concentration
isotonic
-equal concentration
what happens to cells during diffusion?
-the movement of the molecule across the cell membrane
-higher to lower
what happens to cells during osmosis?
-the diffusion of a water molecule across a selectively permeable membrane
-higher to lower
plant cells
-rigid walls chloroplasts
-nucleus on side
animal cells
-no walls
-nucleus in center
what is pH
-expresses acidity or alkalinity
-7 = nutral
-under 7 acidic
-above 7 base
nondisjunction
-the failure of one or more pairs of homologous chromosomes
autosomal recessive
-received two copies of an autosomal gene, one copy from each parent
autosomal dominant
-abnormal gene from one parent
x linked recessive
-always expressed in males and in females who are homozygous
x linked dominant
- dominant gene is carried on the X chromosome
DNA electrophoresis pos and neg
- moves towards positive
hardy Weinburg 5 conditions
-very large population
-no immigration or emigration
-no mutations
-random mating
-no natural selection
what does hardy weinburg teach us
-population’s allele and genotype frequencies will remain constant throughout generations
why is detergent used in dna extraction
-Separate the lipids and fats from DNA
why is salt used in DNA extraction?
-help protect the negatively charged phosphate groups
Turner syndrome
-one sex chromosome
-XO
Poly-X syndrome
-three x chromosomes
-XXX
Klinefelter syndrome
- XXY
Jacob syndrome
-XYY
Mitosis
-occurs in diploid and haploid cells
-one division
-daughter cells = 2
miosis
-occurs in diploid
-two divisions
-daughter cells = 4
volume
-liter
mass
-grams
lenth
-meter
