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Biology Final Exam
Biology Final Exam
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A #BiologyFinal Quiz
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143 cards
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143
Answers
1
oxygen with an atomic number of 8, has __ electrons in first shell and __ in second shell
2;8
3;3
2;6
1;6
2
Rough endoplasmic reticulum contains _______ and therefore makes proteins
mitochondria
amino acids
ribosomes
carbohydrates
3
determining the phylogenic relationship among species is acomplished by analyzing
all of the above
biochemical comarisons
body form and function
patterns of development
4
which of the following is true of water?
the oxygen end is slightly electropositive
hydrogen bonds hold water molecules together
5
light-dependant reactions of photosynthesis replace electrons from splitting of:
carbon dioxide
oxygen
water
6
show a distinct male or female phenotype, such as many birds
directional selection
polygenetic mutations
sexual dimorphism
7
in condensation reactions, ________ is a byproduct
proteins
carbons
electron
water
8
Chromatids that are attached at the centromere are called what kind of chromatids?
sister
mother
daughter
9
which is not a major element that makes up living organisms?
carbon
selenium
nitrogen
oxygen
10
the peppered moths change in wing color (industrial revolution). EX: ____ selection
bipolar
stablizing
disruptive
directional
11
sexual reproduction
leads to uniform characteristics in a population
results in new combinations of genetic traits
12
hydrophilic molecules are _______ water
repelled to
attracted to
13
krebs cycle takes place in the
ribosomes
mitochondria
14
The study of body plans and structures among groups of organisms is termed:
physiology
taxonomy
comparative morphology
15
according to the first law of thermodynamics,
the energy of a system may increase if there is a correspo..
the ammount of energy in the universe is constant
all of these
chem. reactions do not create nor destroy one another
16
Whats the phenotype if homozygous dominant for skin texture where S,dry skin and s,oily skin?
dry skin
SS
oily skin
17
The chromosomes are aligned at the spindle equator during
interphase
anaphase
metaphase
18
natural selection acts directly on ____, indirectly on _____
genotypes;phenotypes
phenotypes;genotypes
19
which is the smallest unit of an element that retains the properties of the element?
compound
molecule
atom
ion
20
which kingdom is comprised of eukaryotes?
virus
protista
eubacteria
21
Which is NOT correct regarding the difference between DNA and RNA:
DNA is double stranded; RNA is single stranded
DNA contains the nitrogenous base thymine; RNA- uracil
Deoxyribose sugar of the DNA contains an OH on the 2’ carbon
deoxy sugar conatins an H on the 2' carbon
22
a codon is ____ base pairs long
9
3
12
23
Diploid Organisms
have corresponding alleles on homologous chromosomes.
are usually the result of the fusion of two haploid gametes.
all of the above
have 2 sets of chromosomes
24
50. This type of cloning occurs in nature and results in identical twins
embryo cloning
theraputic cloning
monohybrid cloning
25
movement of alleles into and out of a population
gene flow
founder effect
26
the ____ pathway of photosynthesis probably evolved first
cylic
non cylic
27
carbon has an atomic number of 6. How many hydrogen atoms are needed to form a stable compound
4
6
28
form, function, behavior or development that improves odds of surviving in particular enviro
evolutionary adaption
founder effect
inbreeding
29
this molecule probably gave rise to the first living cells
tRNA
DNA
RNA
30
Mendel removed which part of the plant to prevent unwanted fertilizations?
petals
pistils
anthers
31
genetic equilibrium is often observed in natural populations
true
false
32
if all offspring of a monohybrid cross have the genotype
AA
the parents of the cross are likely
AA x AA
Aa x Aa
AA x Aa
33
a ____ is a photograph of an individuals chromosome
chromotype
autograph
karyotype
34
a transport protein is responsible for:
moving substances in and out of the cell
protein synthesis
35
The way in which DNA replicates is termed:
semiconservative replication
conservative replication
36
a clad is
a group of organisms that shares a set of chromosomes
a group of organisms that shares DNA
37
mutation that drastically changes phenotypes, usually resulting in death, called a ___ mutation
neutral
lethal
38
allele frequencies shift in 1 direction causing the bell to curve to be skewed to the left or
directional
stablizing
39
analogous structures are products of
homologous
morphological
cladistical
none of the above
40
The reason why eukaryotic mRNA is shorter than the DNA strand which it transcribes is because
Eukaryotic DNA contains exon which do not code for specific
Eukaryotic DNA contain introns which do not code forspecific
41
The set of sixty four different codons is the _____________
nitrogen code
genetic code
42
In glycolysis, glucose splits into two 3-carbon molecules called
citrate
pyruvate
43
16
.
Chromosomes are duplicated during what portion of the cell cycle?
M
S
G1
D
44
through meosis
the diploid chromosome number is reduced to haploid.
alternate forms of genes are shuffled.
all of these
offspring are provided with new gene combinations.
45
an autosomal recessive disorder
appear only in children of parents who both carry the gene
requires that only one parent be a carrier
46
dome shaped fossils
limestone
stromatolites
47
in a punnet square, the letters on the outside of the boxes represent
gemete genotypes
karyotypes
48
On the DNA strand, adenine always binds to
uracil
thymine
cytosine
49
change from the body form of a common ancestors such as forelimbs of verterbraes
morphological convergance
fitness
morphological divergance
50
ATP contains potential energy because:
the adenosine molecule contains stored energy in heat
the phosphate groups contain postive and negative charges
phosphate groups each contain a neg. charge, therby repellin
51
which of the following statements about endergonic reactions is true?
they require an input energy
they destroy energy
they release energy
52
which process drives the energy to make ATP during the light dependant reaction of photosynthes
closing of the stomata
movement of hydro ions across the thykaloid membrane into..
the splitting of water
53
molec. are broken apart in aerobic respiration, the energy released is converted into __ molec.
oxygen
glucose
ATP
54
this pathway of photosynthesis, no oxygen byproduct is produced
cyclic
non cyclic
55
the 3 main domains of life include all of the following EXCEPT
archaea
bacteria
protista
56
the essence of meiosis is that
each gamete receives 1 member of each pair of homo chromoso.
somatic cells can reproduce exact copies of themselves.
57
radiometric dating. most common used isotope used for this procedure is:
uranium 32
Carbon 14
58
Glycolysis
occurs in ribosomes
occurse in the cytoplasm
59
17.The interval before the onset of DNA replication is the
S stage
G2 stage
G1 stage
60
Frameshift mutations include
deletions
insertions
both a and b
61
the activation energy of a reaction refers to the minimum amount of energy
in the products
in the reactants
necessary to cause it to proceed on its own
released by the reaction
62
Aerobes use __________ as the final electron acceptor
water
carbon
oxygen
63
In mitosis if a parent cell has 16 chromosome each daughter cell will have how many chromosome?
32
16
48
64
Which of the following statements is false?
lipids are non polar
when lipids and water are mixed, the lipids dissolve and en.
65
fungi are included in the ____ domain
eukarya
protista
66
carbohydrates are composed of:
carbon, hydrogen, oxygen
proteins, lipids, water
carbon, hydrogen, water
carbon, nitrogen, amino acids
67
_______ is the longest phase of the cell cycle
G1
meisosis
mitosis
68
anabolic reactions
break down molecules such as in cellular respiration
builds up molecules such as in photosynthesis
69
_____ selection occurse when both ends of a variation are favored and intermediate is against
directional
disruptive
stablizing
70
prokaryotes
may have cell walls
are unicellular
all of these
are either bacteria or archaens
71
the nucleus of an atom contains
neutrons and protons
protons only
electrons
neutrons only
72
field of biology concerned with identifying, naming and classifying speicies is termed
cladistics
phylogenetic biology
comparative morpology
taxonomy
73
birth weight of human babies is an example of
sexual selection
stabilizing selection
74
which is NOT a form of prezygotic isolation?
all are forms of prezygotic isolation
mechanical isolation
behavioral
temporal
75
most of the functions of plasma membranes are carried out by
nucleic acids
golgi bodies
proteins
the nucleus
76
hydrolysis is a type of ________ reaction.
electron tranfer
cealvage
77
Plants store carbohydrates as
fat
starch
78
Mitosis and cytoplasmic division function in
all of these
growth
replacement of worn out ells
repair of damaged tissue
79
lipids are:
nonpolar
polar
80
which of the following organelles is correctly matched with its function?
mitochondria: energy
nucelus: protein synthesis
golgi bodies: energy
81
isolation mechanisms that act on the embryo, causing early death, sterility or low survival ra.
postzygotic isolation
behavioral
prezygotic
82
form of bottlenecking, when genetic diversity reduces to the original gene pool
founder effect
gene flow
the founder principle
83
autosomes include
only sex chromosomes
all chromosomes except sex chromosomes
84
which included evidence of endosymbiosis?
about same size and structure as bacteria
replicate independantly
all the above
own DNA with few or no introns
85
for genetic equilibirum to occur, all of the following conditions must be met except
the population must be infinetley large
mating must be non random
mating must be random
86
which of the following colors of light are absorbed by cholorophylls a and b?
yellow
blue (violet) and red
orange
violet
87
24
.
Different, or alternative, forms of the same gene are
mutants
geneotomorphs
alleles
88
prokaryotic domains include
fungi and bacteria
bacteria and prokarya
bacteria and archaea
89
down syndrome involves trisomy
5
3
21
90
The chromosomes move to opposite poles during
interphase
anaphase
metaphase
91
movement of ions or molecules against a concentration gradient is termed:
exocytosis
active transport
condensation
diffusion
92
The correct order of information transfer in the process of protein synthesis is:
DNA-mRNA-ribosomes-proteins
mRNA - DNA - mitochondria - proteins
DNA - tRNA- mRNA-rRNA-proteins
93
which of the following is thought to be the descendant of engulfed ancient bacteria?
endoplasmic reticulum
nuclei
mitochondria
golgi bodies
94
The subatomic particles with a negative charge is?
the proton
neutron
electron
both electron and neutron
95
aerobic respiration is an example of a ______ reaction
endergonic
exergonic
96
which is the correct genotype of a person with blood type O?
i^bi
ii
i^a
97
mutations that have very little or no influence in natural selection are termed:
non effective mutations
neutral mutations
98
Which enzyme is respons. for catalyzing the formation of 2 strand of DNA from free nucleotides?
DNA polymerase
DNA ligase
helicase
99
small scale changes in allele frequencies that arise as an outcome of mutation, nat. selection,
microevolution
macroevolution
100
which best describes atmosphere earth's first few years
no oxygen
two of the aboveĢ
high water level
it contained high concentration of gas
101
enzymes:
slow down metabolic reactions
both a and c are true
speed up metabolic reaction
lower the activation energy of metabolic reactions
102
hox gene is present, it will supress Dlx gene on a snake to prevent expression of _____
apendages
hair
103
What type of bonds hold nitrogenous bases together?
nitrogen bonds
ionic bonds
hydrogen bonds
104
the wings of bats,birds, insects are examples of:
homologous structures
analogous structures
105
the allosteric site of an enzyme is:
the region of the enzyme other than the active sites
the religion of the enzyme where substrates come together
2 of the above are correct
where enzyme activity can be niether inhibited or enhanced
106
bacterial resistance to antibiotics is an example of
macroevolution
microevolution
107
the presence of which of the following distinguishes prokaryotic cells from eukaryotic cells?
cytoplasm
ribosomes
presence of membrane-bound organelles such as a nucleus
dna
108
15
.
Proteins that resemble spools on which DNA molecules are wound are called
kinetochores
centrioles
histones
109
physical barriers that stop gene flow among populations is:
both a and b
a form of geographic isolation
allopatric speciation
none of the above
110
sickle cell anemia persists in africa, leads to malaria resistance, results in..?
balanced polymorphism
dimorphism
111
the human genome does not contain homeotic genes
true
false
112
when a cell contains has a lower concentration of solutes than surrounding extracellular fluid?
isotonic
osmotic
hypotonic
hypertonic
113
40. Concerning the sex chromosomes, which of the following is correct?
Y chrom carry a greater number of genes for nonsexual trait
The X chromosome carries more genes than does the Y.
114
in humans, the ___ pair is the sex chromosome
23rd
21st
5th
115
Which of the following is NOT an advantage of sexual reproduction?
it is energetically costly
it is adaptive in coevolution
116
34. The most accurate description of an organism with genotype
AaBb
is
homozygous dominant.
heterozygous
homozygous recessive
117
NAD and FAD are
both are true
electron carries
coenzymes
118
darwin's theory- species change over time when species differ on_____ traits that allow a speci
genotypic
heritable
119
23. Which of the following statements is NOT true?
Sexual reproduction produces clones.
sexual reproduction, a human offspring receives two genes
Sexual reproduction puts together new combinations of genes.
asexual reproduction the parent pass a complete set of genes
120
27.Meiosis typically results in the production of
4 diploid cells
4 haploid cells
2 diploid cells
121
people with blood type AB are "universal donors"
true
false
122
what kind of reaction produces large molecules by linking small molecules?
reduction
oxidation
condensation
hydrolysis
123
these types of genes are involved in developmental patterns and sequences
autosomal genes
cyclic genes
homeotic genes
124
this type of RNA deliver the appropriate amino acid to the polypeptide chain during translation
rRNA
mRNA
tRNA
125
baterial lineage that is thought to be the first aerobic organisms, contributing to the accum
cyanobacteria
arcchaebacteria
126
earth is how old?
13-15 bil
5000
4.6 bil
127
each codon specifies
protein
amino acid
polypeptide
128
this type of reaction splits molecules apart into 2 smaller ones
covalent
condensation
celavage
129
there are ____ amino acids
12
4
20
130
the atom present in all organic compounds is
carbon
sulfur
131
the basic raw materials needed by plants for photosynthesis?
N2
carbohydrates
o2
none of these
132
representatives of all major lineages had evolved in the seas by
900 mil.
4.6 billion years ago
3.1 bil.
133
one of the generalizations of the cell theory is that
all cells have a nucleus
all cells have cell walls
the cell is smallest unit that displays properties of life
134
which of the following are accessory pigments in plant photosynthesis?
cartonoids
xanthophylls
anthocyanis
all of these
135
amino acids contain ______ that give them their unique characteristics
r groups
polar heads
136
crossing over of non sister chromatids occurs during:
Prophase I of Meosis I
metaphase of meiosis II
137
the most inclusive taxonomic category is....
species
kingdom
genus
phylum
138
type of enzyme are involved in recognizing and snip out a damage site or mismatch DNA replic,
dna ligase
repair enzymes
139
when ATP gives up a phosphate group, the ATP molecule becomes
MDP
ADP
NAD
SNP
140
theory of endosymbiosis, ___ and ____ were once prokaryotes that got engulfed by larger cell
protists and viruses
mitochondria and chloroplasts
DNA and RNA
141
Lactic acid fermentation produces less ATP than aerobic respiration
false
true
142
total net ATP yield from the metabolism of one glucose molecule from cellular respiration is
16
24
36
143
an organisms ability to survive and reproduce is termed:
sexual selection
fitness