แผ่นงานPunnett Squares
คำถามทั้งหมด: 15
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1.
T - tall and t = short
In the punnett square below, what belongs in the missing square
In the punnett square below, what belongs in the missing square
a)
tt
b)
Tt
c)
Bb
d)
TT
2.
B = brown fur b = white fur
In the punnett square, what is the probability for white fur?
In the punnett square, what is the probability for white fur?
a)
0%
b)
25%
c)
50%
d)
75%
3.
In plants, tall (T) is dominant to short (t). Perform the following cross: Tt x Tt. What is the probability of producing a short plant?
a)
0%
b)
25%
c)
50%
d)
75%
4.
What is the probability of heterozygous offspring?
a)
25%
b)
50%
c)
0%
d)
100%
5.
What allele combination should go in the missing box?
a)
AA
b)
Aa
c)
aa
d)
none of these
6.
In a flowering plant species, red flower color (R) is dominant over white flower color (r). What is the genotype of any red-flowering plant resulting from this species?
a)
rr
b)
R
c)
RR
d)
RR or Rr
7.
What is the phenotype of the offspring? (A-Brown hair; a-blond hair)
a)
50 % Brown Hair and 50% Blond Hair
b)
25 % Brown Hair and 75% Blond Hair
c)
75 % Brown Hair and 25% Blond Hair
d)
0% Brown Hair and 100% Blond Hair
8.
If a heterozygous parent and a homozygous recessive parent mate, what percentage of their offspring will be dominant?
a)
25%
b)
50%
c)
75%
d)
100%
9.
Two brown eyed parents (Bb) have a baby. What is the chance the baby is blue eyed?
a)
0 %
b)
25%
c)
50%
d)
75%
10.
In a heterozygous genotype, the ___________ allele takes over in the phenotype.
a)
recessive
b)
dominant
c)
both
11.
T - tall and t = short
In the Punnett square, what belongs in the missing square?
a)
tt
b)
Tt
c)
TT
12.
G = green, g = yellow
The genotype for a yellow plant is...
a)
GG
b)
Gg
c)
gg
d)
all of the choices result in yellow
13.
Which of the following alleles is purebred recessive?
a)
Tt
b)
tt
c)
TT
14.
Each one of the boxes on the Punnett square represents what probability of an offspring's genotype?
a)
25%
b)
1%
c)
10%
d)
0%
15.
Which of the following genotypes is homozygous dominant?
a)
aa
b)
Aa
c)
AA
แป้นคำตอบPunnett Squares
คำถามทั้งหมด: 15
1.
a) tt
2.
c) 50%
3.
b) 25%
4.
b) 50%
5.
b) Aa
6.
d) RR or Rr
7.
c) 75 % Brown Hair and 25% Blond Hair
8.
b)
50%
9.
b) 25%
10.
b)
dominant
11.
a)
tt
12.
c)
gg
13.
b)
tt
14.
a)
25%
15.
c)
AA
140 %