Learning Set 2

Front 1

carpel

Back 1

the femalepart of fl owers.

Front 2

stigma

Back 2

the toppart of the carpelwhere the pollen isdeposited.

Front 3

style

Back 3

the slender,tube-like part ofthe carpel.

Front 4

ovule

Back 4

a tiny,egg-like structurein fl owering plantsthat containsthe female traitsand developsinto a seed afterfertilization

Front 5

pistil

Back 5

the femalereproductive organof a fl ower; maybe made up of asingle carpel or oftwo or more fusedcarpels.

Front 6

stamen

Back 6

the malepart of the flower.

Front 7

anther

Back 7

thestructure on thestamen of fl owerswhere pollenand sperm areproduced.

Front 8

sperm cells

Back 8

structures thatcontain the malechromosomes.

Front 9

petal

Back 9

a fl ower’souter protectivecovering, usuallycolored. Used alsoto attract insectsand animals forpollination.

Front 10

sepal

Back 10

a flower’souter protectivecovering, usuallygreen.

Front 11

receptacle

Back 11

themain stem of aflower.

Front 12

cross-pollination

Back 12

the transfer ofpollen on one plantto the female partof another plant.

Front 13

self-pollination

Back 13

the transfer ofpollen on one plantto the female partof the same plant.

Front 14

Inherit

Back 14

receivetraits from previousgeneration.

Front 15

expressed

Back 15

shown(to show).

Front 16

theory

Back 16

a broadexplanation that isstrongly supportedby a body ofevidence.

Front 17

blending

Back 17

an equalmixing of traits.

Front 18

cross

Back 18

to breedtwo differentvarieties ofplants to produceoffspring with amixture of traitsfrom the twoparents.

Front 19

true-breeding

Back 19

organisms thatalways pass theirtraits on to thenext generation.

Front 20

hybrid

Back 20

theoffspring of thecross betweenparents withdifferent traits.

Front 21

chromosomes

Back 21

strands of geneticmaterial inside thecell that containinformation thatcodes for the traitsof an organism.

Front 22

genetic material

Back 22

genetic informationin an organism thatis passed downfrom generation togeneration

Front 23

gene

Back 23

thelocation on thechromosomethat contains theinstructions for aparticular trait.

Front 24

alleles

Back 24

differentforms of a gene.

Front 25

dominant

Back 25

theallele that masksthe expression ofthe recessive allele.

Front 26

recessive

Back 26

the allele whoseexpression ismasked by thedominant allele.

Front 27

phenotype

Back 27

the physicalcharacteristics ofan organism

Front 28

genotype

Back 28

thegenetic makeup ofan organism.

Front 29

homozygous

Back 29

when an organismhas two identicalalleles for aparticular gene.

Front 30

heterozygous

Back 30

when an organismhas two differentalleles for the samegene.

Front 31

incomplete dominance

Back 31

oneallele of a paircannot completelyhide the traitsof its partner;this results in a“blending” of traitsin the offspring.

Front 32

co-dominance

Back 32

neither allele ofa pair hides theother. Both allelesare dominant tothe same extent;no blending occurs

Front 33

multiple alleles

Back 33

more than twoalleles for the samegene.

Front 34

probability

Back 34

the chance thatsomething willhappen.

Front 35

Punnett Square

Back 35

a tool scientistsuse to investigatethe possiblecombinations ofgenetic crosses.

Front 36

P generation

Back 36

theparental generationin a breeding.

Front 37

F1 generation

Back 37

the fi rst generationof offspring from abreeding.

Front 38

F2 generation

Back 38

the secondgeneration ofoffspring from abreeding.

Front 39

Cysticfibrosis

Back 39

hereditarydisease thatcauses the bodyto produce thick,sticky mucus inthe lungs, liver,pancreas, andintestines.

Front 40

mucus

Back 40

asecretion of thebody.chest

Front 41

chest physiotherapy

Back 41

atreatment used forremoving the thickmucus that formsin the lungs of aperson with CF.

Front 42

mutation

Back 42

changes to thegenetic material ofan organism.

Front 43

Huntington's Disease

Back 43

a fatalgenetic diseasecaused by adominant allele,which affects thenervous system.

Front 44

Sickle-cell anemia

Back 44

a geneticdisease, carriedby a recessiveallele, that affectsthe ability of theblood cells to carryoxygen.

Front 45

anemia

Back 45

a lownumber of redblood cells, whichcarry oxygen in theblood to the bodycells.

Front 46

jaundice

Back 46

acondition whenpigments from thegall bladder invadethe blood. The skinand eyes becomeyellow.

Front 47

adult leukemia

Back 47

cancer of the whiteblood cells inadults.