BIO 182 EXAM 1-ASU QUESTIONS &
ANSWERS (RATED A+)
how many species live in planet Earth? - ANSWERunknown-roughly 3 to 5 million
why is life so incredibly diverse, yet so strangely similar? - ANSWERorganisms 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? - ANSWER
true or false: scientists believe in evolution even though they currently lack evidence
for the theory - ANSWERfalse
when one copy of an allele determines the phenotype of an individual -
ANSWERdominant
when two copies of an allele are needed to express a certain phenotype -
ANSWERrecessive
when an individual carries two different alleles for a gene - ANSWERheterozygous
when an individual carries two identical alleles for a gene - ANSWERhomozygous
when two chromosomes contain the same genes - ANSWERhomologous
when the variation in a phenotype depends on genes - ANSWERheritable
when a cell contains two copies of each chromosome - ANSWERdiploid
when a cell contains one copy of each chromosome - ANSWERhaploid
a characteristic of an organism that varies genetically - ANSWERtrait
a description of an organism's appearance or behavior - ANSWERphenotype
an error in the sequence of nucleotides when copying DNA - ANSWERmutation
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 - ANSWERDNA replication
thought there was an inheritance of acquired traits-like giraffes and their long necks -
ANSWERIdeas of Lamarck
ANSWERS (RATED A+)
how many species live in planet Earth? - ANSWERunknown-roughly 3 to 5 million
why is life so incredibly diverse, yet so strangely similar? - ANSWERorganisms 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? - ANSWER
true or false: scientists believe in evolution even though they currently lack evidence
for the theory - ANSWERfalse
when one copy of an allele determines the phenotype of an individual -
ANSWERdominant
when two copies of an allele are needed to express a certain phenotype -
ANSWERrecessive
when an individual carries two different alleles for a gene - ANSWERheterozygous
when an individual carries two identical alleles for a gene - ANSWERhomozygous
when two chromosomes contain the same genes - ANSWERhomologous
when the variation in a phenotype depends on genes - ANSWERheritable
when a cell contains two copies of each chromosome - ANSWERdiploid
when a cell contains one copy of each chromosome - ANSWERhaploid
a characteristic of an organism that varies genetically - ANSWERtrait
a description of an organism's appearance or behavior - ANSWERphenotype
an error in the sequence of nucleotides when copying DNA - ANSWERmutation
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 - ANSWERDNA replication
thought there was an inheritance of acquired traits-like giraffes and their long necks -
ANSWERIdeas of Lamarck
