Chapter 8 Turning Point
Assessment
Rules
•
•
•
•
Remain silent during test
Use clickers to answer question
Keep both hands on table
Keep notes and bags under the table
Scoring
• Easy: 1 may get wrong
• Medium: 2 may get wrong
• Hard: 3 may get wrong
1. When two members of the F1 generation is crossed,
the offspring is referred to as the ________ generation
1.
2.
3.
4.
P
P1
F
F2
2. A trait that is determined by a gene found only on
the X chromosome is said to be a(n) ________ trait.
1.
2.
3.
4.
Autosomal
Sex linked
Dominant
Recessive
3.Crossing two pea plants heterozygous for flower color
should produce a phenotypic ratio of ________ in the
offspring.
25%
25%
1:
2:
2:
1:
4:
2:
1:
...
25%
9:
3:
3:
1
25%
1:
2:
1
1:3
1:2:1
9:3:3:1
1:2:2:1:4:2:1:2:1
1:
3
1.
2.
3.
4.
4.The genotype PP is an example of
this.
.. .
zy
go
us
r
...
He
te
ro
zy
go
us
d
He
te
ro
sd
om
...
oz
yg
ou
Ho
m
oz
yg
ou
sr
ec
..
.
25% 25% 25% 25%
Ho
m
1. Homozygous
recessive
2. Homozygous
dominant
3. Heterozygous
dominant
4. Heterozygous
recessive
5.The diagram used to predict the outcome of a genetic
cross is called the
1. Heterozygous
diagrams
2. Punnet squares
3. Probability
4. Family trees
tre
es
Fa
m
ily
ty
Pr
ob
a
bi
li
s
ar
e
ts
qu
Pu
nn
e
He
te
r
oz
yg
ou
sd
...
25% 25% 25% 25%
6.When several genes influence a trait,
the trait is said to be
1. Polygenic
2. Codominant
3. Incompletely
dominant
4. Completely
dominant
.. .
do
m
ly
te
Co
m
pl
e
m
pl
e
te
ly
d.
..
t
In
co
Co
do
m
in
an
Po
l
yg
en
ic
25% 25% 25% 25%
7.Which of the following genetic disorders is caused by
a sex-linked allele?
Sickle cell anemia
Hemophelia A
Hypercholestolemia
Tay-Sachs Disease
Di
se
.. .
...
Sa
c
Ta
y-
rc
ho
le
Hy
pe
hs
st
ol
A
ia
el
He
m
op
h
le
ce
ll a
n.
..
25% 25% 25% 25%
Sic
k
1.
2.
3.
4.
8. Which of the following is NOT one
of Mendel’s major hypotheses?
le
l. .
.
tw
o
n
W
he
ca
et
es
Ga
m
al
rry
lt .
..
ha
v
ea
...
Ge
ne
s
du
al
ivi
in
d
...
25% 25% 25% 25%
An
1. An individual receives two
copies of a gene for each
trait
2. Genes have alternative
versions, which we now
call alleles
3. Gametes carry several
alleles for each inherited
trait
4. When two alleles appear
together, one may be
dominant
9. A gene with two dominant alleles that are expressed
at the same time is (this is not referring to genes that
are shared)
In
co
m
pl
e
te
ly
yg
en
ic
Po
l
M
ut
a
do
m
in
tio
an
t
na
l
t
25% 25% 25% 25%
Co
do
m
in
an
1. Codominant
2. Mutational
3. Incompletely
dominant
4. Polygenic
10. The law of segregation states that
pairs of alleles
1. Separate when
gametes form
2. Separate when
somatic cells form
3. Are always the same
4. Are always different
..
sd
if.
.. .
al
Ar
e
wa
y
al
Ar
e
wa
y
st
he
. ..
n
wh
e
e
ar
at
Se
p
Se
p
ar
at
e
wh
e
n
. ..
25% 25% 25% 25%
11. An individual’s ______ is often depends of the
condition in the environment
ty
pe
25%
Pr
ot
o
yp
e
no
t
Ph
e
25%
yo
ty
pe
25%
yp
e
25%
Ka
r
Genotype
Phenotype
Karyotype
Prototype
Ge
no
t
1.
2.
3.
4.
12. This diagram is used to see the probability of two
traits in one generation
Monohybrid cross
Dihybrid cross
Triploid cross
Family Tree
ee
ily
Fa
m
cr
lo
id
Tr
ip
Tr
os
s
os
s
cr
Di
hy
br
id
on
oh
y
br
id
cr
o.
..
25% 25% 25% 25%
M
1.
2.
3.
4.
13. The branch of biology that studies heredity is ____
25%
Te
st
c
gy
ol
o
Bi
m
ist
25%
ro
ss
25%
ry
25%
Ch
e
Genetics
Chemistry
Biology
Test cross
Ge
ne
tic
s
1.
2.
3.
4.
14. These are the first two individuals that
are crossed in a breeding experiment
25%
X
io
n
Ge
ne
ra
t
at
io
ge
n
er
ge
n
F1
er
at
io
n
at
io
er
ge
n
25%
n
25%
n
25%
F2
P generation
F1 generation
F2 generation
Generation X
P
1.
2.
3.
4.
15. For each inherited character, an individual has this
many copies of the gene.
25%
25%
4
25%
3
25%
2
1
2
3
4
1
1.
2.
3.
4.
16. Alternative versions of genes are
called _____
le
s
an
t
25%
Al
le
ist
te
r
ra
c
Ch
a
25%
in
ic .
..
25%
Do
m
25%
ts
Traits
Characteristics
Dominant
Alleles
Tr
ai
1.
2.
3.
4.
17. In a test cross, an individual with an unknown
genotype but whose phenotype is dominant is crossed
with this kind of individual.
.
oz
yg
ou
sr
ec
..
.. .
Ho
m
zy
go
us
r
He
te
ro
sD
om
. ..
Ho
m
oz
yg
ou
oz
yg
ou
sD
. ..
25% 25% 25% 25%
He
te
r
1. Heterozygous
Dominant
2. Homozygous
Dominant
3. Heterozygous
recessive
4. Homozygous
recessive
18. This is the likelihood that a specific
event will occur
n
To
ss
25%
Co
i
25%
tio
bi
li
ty
25%
Pr
ob
a
tis
tic
s
25%
Ra
Statistics
Probability
Ratio
Coin Toss
St
a
1.
2.
3.
4.
19. This genetic disorder is a dominant
disorder
Sickle cell anemia
Cystic fibrosis
Hemophelia
Huntingdon’s
disease
...
ia
Hu
nt
in
gd
o
n’
sd
el
He
m
op
h
si.
.
fib
ro
Cy
st
ic
le
ce
ll a
n.
..
.
25% 25% 25% 25%
Sic
k
1.
2.
3.
4.
20. This process allows scientists to replace the
defective genes with copies of healthy ones
Di
hy
br
id
25%
gr
ee
s
cr
y
er
ap
Th
25%
Pe
di
25%
os
s
25%
Ge
ne
tic
s
Gene Therapy
Dihybrid cross
Genetics
Pedigrees
Ge
ne
1.
2.
3.
4.