This site is 100% ad supported. Please add an exception to adblock for this site.

AP Bio Chapter 14 - vocab

(same as chapter 13 - vocab) for sub-scripts, just insert the number after the letter, don't make it a sub-script

Terms

undefined, object
copy deck
character
a _______ is a heritable feature, such as flower color, that varies among individuals
trait
each variant for a character, such as purple or white flower color, is called a _____
true-breeding
all the offspring are the same variety
hybridization
Mendle cross-pollinated two contrasting, true-breeding pea varieties, know as _________
P generation; F1 generation
the true-breeding parents are referred to as the _ ____________, and their hybrid offspring are the __ ___________
F2 generation
allowing F1 hybrids to self-pollinate would produce the __ _____________
alleles
alternative versions of a gene are called _______
dominant allele; recessive allele
if two alleles at a locus differ, then one, the ________ ________ determines the organism's appearance; the other, the _______ _____, has no noticeable effect on the organism's appearance
law of segregation
the two alleles for a heritable character separate (segregate) during gamete formation and end up in different gametes (what law is this?)
homozygous
an organism having a pair of identical alleles for a character is said to be _________ for the gene controlling that character
heterozygous
an organism that has two different alleles for a gene is said to be _________ for that gene
phenotype; genotype
an organism's traits are its _________, and its genetic makeup is its _________
testcross
the breeding of a recessive homozygote with an organism is dominant phenotype but unknown genotype is called a _________
monohybrids
all the F1 progeny produced in crosses of true-breeding parents were _________, meaning that they were heterozygous for one character
law of independent assortment
each pair of alleles segregates independently of other pairs of alleles during gamete formation (what law is this?)
complete dominance
in Mendle's F1 pea plant crosses, the F1 plants always looked like on of the two parental varieties because of the _______ _________ of one allele over another
codominance
the two alleles both affect the phenotype in separate distinguishable ways
Tay-Sachs disease
the brain cells of a baby are unable to metabolize certain lipids because a crucial enzyme doesn't work properly. As lipids accumulate in the brain cells, an infant begins to suffer seizures, blindness, and degeneration of motor and mental performance (what disease is this?)
pleiotrophy
most genes have multiple phenotypic effects, a property called _______
epistasis
in ________, a gene at one locus alters the phenotypic expression of a gene at a second locus
norm of reaction
a genotype generatlly isn't associated with a rigidly defined phenotype, but rather with a range of phenotypic possibilities due to environmental influences. this is called the _____ ____ ________ for a genotype
multifactorial
geneticists refer to characters such as skin color as ________, meaning that many factors, both genetic and environmental, collectively influence phenotype
amniocentesis
a physician inserts a needle into the uterus and extracts about 10 mL of amniotic fluid, the liquid that bathes the fetus
chorionic villus samplin
a physician inserts a narrow tube through the cervix into the uterus and suctions out a tiny sample of tissue from the placenta (hint: CVS)

Deck Info

24

permalink