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ASU BIO 182 EXAM 1,2 &3 QUESTIONS AND VERIFIED ANSWERS 100% (LATEST UODATE
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ASU BIO 182 EXAM 1,2 &3QUESTIONS AND VERIFIED
ANSWERS 100% (LATEST
UODATE
How many species live in planet earth?
Unknown-roughly 3 to 5 million
Why is life so incredibly diverse, yet so strangely similar?
Organisms can contain similar features. Planes have wings, birds have wings-
this feature is useful for different things (different for penguins, pelicans, bats,
eagles)
True or false: biodiversity on earth will likely decrease in the near future?
True or false: scientists believe in evolution even though they currently lack
evidence for the theory
False
True or false: opposition to irrational numbers was based on evidence that such
numbers cannot exist
False
True or false: opposition to irrational numbers stemmed from a worldview
involving naturalistic evolution
False
True or false: the belief that irrational numbers cannot exist reflects religion
more than science
True
True or false: modern mathematicians accept irrational numbers because such
numbers provide more accurate solutions to problems than whole numbers do
True
,The scientific method relies on....
Models, observations, and experiments
A model is a formal description of a scientific hypothesis. Which provides the
most precise description of a hypothesis?
True or false: an experiment enables one to demonstrate that a correlation
between two variables results from cause and effect
True
A well designed experiment...
Controls for environmental and genetic factors, involves replications of
experimental subjects, and randomizes experimental subject among treatments
True or false: unlike wallace, darwin did not believe that natural selection
required variation among individuals
False
True or false: wallace used induction to develop a model of evolution by natural
selection
True
Unlike wallace, darwin's conceived his theory of evolution without observing
species living on islands
False
True or false: both darwin and wallace must have assumed that differences
among individuals were passed onto their offspring
True
True or false: similar to wallace, darwin conceived a theory of evolution by
natural selection while voyaging around the world
False
True or false: both wallace and darwin adopted a worldview described as either
naturalistic evolution or theistic evolutions
True
True or false: a probability of 0.98 means that an event occurs rarely
,False
True or false: when a parent is heterozygous, the probability of passing the
dominant allele to its offspring is 25%
False
True or false: when both parents are heterozygous (aa), the probability of an
offspring being homozygous recessive (aa) equals 0.25
True
True or false: a punnett square enables one to determine the frequency of
observed genotypes without using a mathematical formula to calculate the joint
probability
True
True or false: when both parents are heterozygous (aa) equals 0.75
False
When one copy of an allele determines the phenotype of an individual
Dominant
When two copies of an allele are needed to express a certain phenotype
Recessive
When an individual carries two different alleles for a gene
Heterozygous
When an individual carries two identical alleles for a gene
Homozygous
When two chromosomes contain the same genes
Homologous
When the variation in a phenotype depends on genes
Heritable
When a cell contains two copies of each chromosome
Diploid
When a cell contains one copy of each chromosome
Haploid
, A characteristic of an organism that varies genetically
Trait
A description of an organism's appearance or behavior
Phenotype
An error in the sequence of nucleotides when copying dna
Mutation
A form of a gene that affects the way an organism looks or behaves
Allele
The set of alleles that determine how an organism looks or behaves
Genotype
A place on a chromosome where a certain gene occurs
Locus
A linear sequence of dna that codes for a certain protein
Gene
A process in which a diploid cell produces four haploid cells
Meiosis
A process in which a diploid cell produces two diploid cells
Mitosis
A highly condensed molecule of dna that codes for many proteins
Chromosome
A hapliod cell that develops into a sperm or an egg
Gamete
The diploid cell that results from fertilization between sperm and egg
Zygote
When a cell prepares to divide, it must copy its dna such that each daughter
cells ends up with all of the necessary genetic material
Dna replication
Thought there was an inheritance of acquired traits-like giraffes and their long
necks
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