science Flashcards
where are genes located?
in your chromosomes
what genes are inherited by bacterial offspring
all of the genes are inhereited
is this false? offspring inherit 23 alleles for each gene from each parent
yes
how many total chromosomes does a regular human cell have
46
when chromosomes combine from each parent sex cell what is the chance of inheriting a particular pair of chromosomes?
25%
how many possible chromosome combinations can a person inherit??
4
if the parent alleles are Bb what is the appropriate title for this
heterozygous
how many total chromosomes does a regular human cell have
46
when chromosomes combine from each parent sex cell what is the chance of inheriting a particular pair of chromosomes
25%
what percentage of the offspring would inherit the dominant allele with parent alleles of RR and Rr
75%
the chance that a specific outcome will occur each time an event happens
probability
a diagram that shows the potential allele combinations an offspring could inherit from its parents
punett square
the different combinations of alleles found in a species
genetic variation
the process by which one organism produces offspring that are genetically identical to it and each other
asexual reproduction
the process by which female and male sex cells from two parent organisms combine genetic information to produce offspring
sexual reporduction
an event that happens in which the outcome cannot be predicted before it occurs
random
an allele that id expressed even if only one copy is present
Dominant
an allele that is expressed when two copies are present
recessive
blonde hair is an example of what
phenotype
are all mutations harmful?
no
does nature refer to the genes that influence traits?
yes
most traits are strongly influenced by what?
both genes and the environment
a variable that changes in an experiment
independent
all factors that stay constant are
controlled
