EXAM 3 BIO LAB Flashcards
fundamental law of law of inheritance=Law of Dominance
one gene express itself in the presence of its allele
fundamental law of law of inheritance= Law of segregation
members of an allelic pair separate during formation of gametes
fundamental law of law of inheritance= Law of assortment
each gene pair (alleles) tends to assort independently of each other genes pairs are located on non-homologous chromosomes during the formation of gametes
simple dominance and example
inheritance in which one gene expresses itself in the presence of its recessive allele
P=purple
p=yellow
incomplete dominance and example
inheritance in which on allele is not dominate over the other offspring are intermediate in characteristics between the parent
RR=red
RW=pink
WW=white
Mutiple alleles and example
inheritance in which the gene for a given character exits in the from of there or more alleles
ABO blood groups
X-lined (sex-lined) and example
inheritance of traits from genes located on the x (or rarely Y) chromosome
eye color in fruit flies
red/green color blindness
hemophilia in humas
sex influenced and example
which in the expression of the gene or genes is affected by the presences or absence of sex hormones
early baldness in humas
Define Genetics
the science of heredity: The study of the transmission of characteristics from one generation to the next
Define Dominant
A gene that expresses itself in the presence of its recessive allele. “stronger” can express
define Recessive
a gene that cannot express itself in the presence of its dominant allele “weaker”
Define Allele
A form of gene: allele of a gene determines different expression of the same trait
Define Genotype/ example
The actual makeup of an individual
*Code * PP-Pp-pp
Define Phenotype/example
The physical appearance of an individual
*ph=physical *purple vs yellow
define homozygous /example
member of allelic pair is the same
*Homo=same *Same letter upper case/lower case
Define Heterozygous/example
members of an allelic pair are different case
*Hetero=different
* Different letters together
in autosomal of kennel color, the gene for _____kernels is dominate over the gene for ______ kernels. This example of SIMPLE DOMINACE
purple
yellow
why do we use corn for genetic study?
purple is dominant to yellow corn
purple is more dominant because there is more
what did we do with the corn experiment
counted all corn down the row
by calculating a ______we can accept or reject our hypothesis by comparing our observed data with expected data
test statistic
formula for chi square
and the chi square test the ______ of collected data to a hypothesis
E
Goodness of fit
do simple monohybrid cross
be able to work sex- linked inheritance questions about your results
The most succesfull most advanced land plants are the
land plants
list the three part of the seed
seed coat
embryo plant
stored food
radicle
root
hypotocotyl
stem
plumule
leaves
The ______acts as the food source until the plant establishes its roots. sometimes they are the first leaves of the plant
cotyledon
label the parts of the seed
gymnosperms mean
naked seeds
angiosperms
naked vessels
Ovules- immature seeds
Ovary- becomes the fruit of the plants and encloses the seeds
two kinds of seed plants found on earth today are
Gymnosperms
Angiosperm
the angiosperm possess flowers ______ (immature seeds) are enclosed in an ____ and the seeds are enclosed in a ___
Flowes
ovule
cupule
The gymnosperms are classified in 4 divisions
cycads
ginkgo
genotypes
conifers
Conifers are the most common of the gymnosperms
pines
junipers
cedars
bald cypress
red wood
giant sequoia
characteristics of coniferophyta that are gymnosperms
cones present but not flowers
seeds borne naked on scale of cones
leaves mostly needle- like or scale like
pollination by wind
in addiction to food we obtain _____ _____ _____ ____ most important _____ from angiosperms
oils waxes fibers wood medicines
There are more than _____ described species of living angiosperms compared to only about ____ gymnosperms
250,000
600
characteristics of Anthophyta that are angiosperms
flowers present but not cones
seeds enclosed immature ovary
leaves mostly broad and flat
pollination largely by animals
compare Gymnosperms and angiosperms
GY=not present vs AN= flowers present
GY =leaves needle like vs AN= leaves broad/flat
of cotyledons (seeds leaves)
MONOCOTS
1 cotyledons
cotyledons (seeds leaves)
DICOTS
2 cotyledons
of flowers parts
MONOCOTS
flowers parts in 3 multiples of 3
of flowers part
DICTOTS
flower parts in 4 or 5 multiples of 4 or 5
leaf veins
MONOCOTS
parallel leaf veins
leaf veins
DICTOTS
netted leaf veins
arrangement of vascular bundles in the stem
MONOCOTS
fibrous roots
arrangement of vascular bundles in the stem
DICOTS
tap roots with laterales
type of roots
MONOCOTS
vascular bundles in stem arranged randomly
type of roots
DICOTS
vascular bundles in stem arranged in a ring
Examples
MONOCOTS
lilies
grasses
orchids
palms
Examples
DICOTS
roses
sunflowers
oaks
magnolias
stamen
male structure (consists of 2 parts, anther and filament)
Anther
produces pollen
filament
holds up anther (helps ensure pollen gets on pollinator)`
pollen
sperm
pollen tube
how sperm travels to ovary and is built by pollen (many in one flower pistil because a new one is made with each pollen grain that lands on stigma & it drills a pollen tube all the way from the stigma down the style to the ovary for fertilization)
petal
attraction and direction
sepal
protects flower bed
pistil
female structure (consists of 3 part; stigma style and ovary)
stigma
collects pollen
style
how pollen travels to ovary
ovary
contains ovules
ovule
immature seeds
receptacle
holds flower
type of meristem tissues
Primary (apical)
increase length
found in tips of roots/shoots
apical: tip
type of meristem tissues
secondary
increase diameter/girth
found around trunks/limbs
An oak tree grows at a rate on foot per year. In 2000 you craved your initials in the bark at the height of five feet from the ground. When you return to the tree in the year 2020, how high off the ground will your initials be? why
Your initials will be in the same height because the trunk does not grow only the limbs
Most angiosperm are pollinated by insects an adaptation called ________from Greek words meaning “love of insects”
ENTOMOPHILLY
what does Entomophily mean
love of insects
define ecology
is the study of interactions between living organisms and their environment
Define Population
Organisms is a group of individuals of the same species occupying a given area at a given time
Define Habitat
The place you are occupying the lab room is your habitat
Define Community
consists of all those populations of all species occupying a given area at a given time