heredity ca review
DESCRIPTION
HEREDITY CA REVIEW. What is an adaptation?. A change in DNA An over production of offspring A competition between two members of the same species A modification in a species for survival I need help. Which of the following is true about the rate of evolution for most species?. - PowerPoint PPT PresentationTRANSCRIPT
HEREDITY CA REVIEW
What is an adaptation?
A chan
ge in
DN...
An over p
roduc..
.
A competi
tion ...
A mod
ificati
on...
I nee
d help.
0% 0% 0%0%0%
a) A change in DNAb) An over production of
offspringc) A competition
between two members of the same species
d) A modification in a species for survival
e) I need help.
Which of the following is true about the rate of evolution for most species?
Evolutio
n can ...
Evolutio
n occu
...
Evolutio
n occu
...
Evolutio
n occu
...
I nee
d help!
0% 0% 0%0%0%
a) Evolution can occur over a weekend
b) Evolution occurs in several months
c) Evolution occurs over one year
d) Evolution occurs over millions of years
e) I need help!
If trees grew taller over time, what physical characteristics of giraffes would allow them to survive?
Thick ne
ck
Thin neck
Long nec
k
Short ne
ck
I nee
d help!
0% 0% 0%0%0%
a) Thick neckb) Thin neckc) Long neck d) Short necke) I need help!
Which of the following is a result of adaptations over a long period of time?
Diversi
ty with
...
Competitio
n wi...
Extincti
on of ...
I nee
d help!
0% 0%0%0%
a) Diversity within a species.
b) Competition within a species.
c) Extinction of a species.
d) I need help!
Darwin’s studies of finches on the Galapagos Islands suggest that the finches’ differences in beak structure were most directly due
to….
Acquir
ed ch
ara...
Mati
ng behav
io...
Adaptat
ions of...
I nee
d help!
0% 0%0%0%
a) Acquired characteristics in the parent finches
b) Mating behaviors of different finch species
c) Adaptations of the finches to different environments
d) I need help!
Which of the following is better adapted for a water environment?
Haw
k D
uck
sparr
ow
0% 0%0%
a) Hawkb) Duckc) sparrowA
.B
C
Which of the following is a piece of evidence for evolution?
a) D
iffere
nt...
b) Sim
ilarit
...
c) N
umbe
r of...
d) Competi
ti...
e) I
need he
...
0% 0% 0%0%0%
a) Different body structures
b) Similarities in early development
c) Number of members of species
d) Competition e) I need help!
When some members of a species become isolated
They become ex..
.
They cannot r
e...
They are more ...
Their populati...
0% 0%0%0%
a) They become extinctb) They cannot reproducec) They are more likely to
form a new speciesd) Their population
increases
Diversity between individuals of a population or species is caused by:
Overproducti
on...
Random mutatio...
Extincti
on
Graduali
sm
0% 0%0%0%
a) Overproduction b) Random mutationsc) Extinctiond) Gradualism
We are learning to: describe how asexual reproduction increases or decreases chances for survival. We are looking for :Increases survival: due to no variation, it allows for survival in a stable environment.
Decreases survival: due to no variation, the organism is not able to adapt to a changing environment.
Paramecia usually reproduce asexually. Fish reproduce sexually. Suppose the environmental conditions in the lagoon change. What advantage will
the fish populations have over the paramecium population?
Offs
pring a
re ide
ntical
..
Gen
etic v
ariab
ility d
e...
Only
a single
indivi
dua...
Offs
pring a
re ab
le to ...
Help
! I do
n’t unde
rstan
d.
0% 0% 0%0%0%
a) Offspring are identical to the parents
b) Genetic variability decreases in the fish populations
c) Only a single individual is required to reproduce
d) Offspring are able to adapt to new conditions over fewer generations.
e) Help! I don’t understand.
Which of the following is NOT an example of asexual reproduction?
budding
rege
neratio
n
Fission
Fertiliz
ation
Help! I
don’t .
..
0% 0% 0%0%0%
a) buddingb) regenerationc) Fissiond) Fertilizatione) Help! I don’t
understand.
Which of the following statements is true regarding asexual reproduction?
Requir
es a
lot of e
nergy
Allows f
or dive
rsity
Does not
allow fo
r di...
Requir
es tw
o differen
...
Help! I
don’t u
nderst
and.
0% 0% 0%0%0%
a) Requires a lot of energy
b) Allows for diversityc) Does not allow for
diversityd) Requires two different
organismse) Help! I don’t
understand.
How has sexual reproduction enhanced a species’ chance for survival?
It pro
duces o
ffsprin
g ...
It alw
ays p
roduce
s of...
It do
es not a
llow fo
r ...
It pr
oduce
s offs
pring ...
Help! I
don’t u
nderst
and.
0% 0% 0%0%0%
a) It produces offspring with unique traits
b) It always produces offspring that are identical
c) It does not allow for genetic variation
d) It produces offspring that cannot reproduce if two different species mate
e) Help! I don’t understand.
We are learning to: recognize that likenesses between parents and offspring are inherited while some are learned. We are looking for:example of traits that are inherited and traits that are learned.
From whom does a male offspring get its traits?
Mom
Dad
Both a and b
Neither a
or b
Help! I don’t u
nderstand!
0% 0% 0%0%0%
a) Mom b) Dadc) Both a and bd) Neither a or be) Help! I don’t
understand!
Which of the following is a learned trait?
Hair color
Eye co
lor
Table m
anners
Height
0% 0%0%0%
a) Hair colorb) Eye colorc) Table mannersd) Height
Which of the following terms describe the physical appearance of the organisms caused by inherited traits?
Allele
Genotype
Homozygous
Phenotype
Help! I don’t u
nderstand!
0% 0% 0%0%0%
a) Allele b) Genotypec) Homozygousd) Phenotypee) Help! I don’t
understand!
Which term describes an inherited trait that is always expressed when present?
Dominant
Genotype
Phenotype
Recessive
Help! I need help
0% 0% 0%0%0%
a) Dominantb) Genotypec) Phenotyped) Recessivee) Help! I need help
We are learning to: recognize the differences between inherited traits and learned traits.
We are looking for: probability about inheritance using Punnett squares.
What is the phenotype of the F1 generation from the Punnett square below? (T = tall, t = short)
100%
Tall
100%
short
50% ta
ll, 50
% short
75% ta
ll, 25
% short
0% 0%0%0%
a) 100% Tallb) 100% shortc) 50% tall, 50% shortd) 75% tall, 25% short
T
t
T t
Which of the following statements describes the offspring in the Punnett Square below?
All o
ffspri
ng ...
Half
of the o
f...
The offs
pring .
..
The offs
pring .
..
0% 0%0%0%
T
t
t t
a) All offspring will be homozygous recessive.
b) Half of the offspring should have the recessive phenotype.
c) The offspring will all have the dominant trait.
d) The offspring are all heterozygous.
Two adults decide to have a baby. If one parent has brown eyes (BB), which is a dominant trait and the other parent has blue
eyes (bb) which is a recessive trait. What is the probability that they will have a baby with blue eyes?
0% 0% 0%0%0%
a) 100%b) 75%c) 50%d) 25%e) 0%
In rabbits, brown fur (B) is dominant over white fur (b). If two brown, heterozygous rabbits mate, what is the probability that their offspring will have white fur?
0% 0% 0%0%0%
a) 100%b) 75%c) 50%d) 25%e) 0%
In humans, free ear lobes (E) is dominant over attached ear lobes (e). Which of the following describe the outcomes if a
homozygous dominant man and a heterozygous female have a baby?
0% 0%0%0%
a) All of their children will have attached ear lobes
b) ½ of their children will have attached ear lobes
c) All of their children will have free ear lobes
d) ½ of their children will have free ear lobes.