WorksheetsGenetics Int Bio
Total questions: 62
Worksheet time: 1hrs 4mins
Name
Class
Date
1.
The passing of traits from parent to offspring
a)
Heredity
b)
Genetics
c)
Hybrid
d)
Probability
2.
Who was the father of genetics
a)
Sagan
b)
Issac Newton
c)
Gregor Mendel
d)
C.jenkins
3.
which is heterozygous ?
a)
Tt
b)
TT
4.
A homozygous dominant dog with brown fur is crossed with a heterozygous dog with brown fur. What are the percentages of the possible genotypes?
a)
100% BB
b)
75% BB and 25%Bb
c)
50 % BB and 50% Bb
d)
50% Bb and 50% bb
5.
An offspring will receive how many alleles from each parent to determine a specific trait?
a)
one
b)
two
c)
three
d)
five
6.
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%
7.
G = green, g = yellow
The genotype for a yellow plant is...
The genotype for a yellow plant is...
a)
GG
b)
Gg
c)
gg
d)
all of the choices result in yellow
8.
Two heterozygous (Tt) tall pea plants are crossed. Which describes their offspring?
a)
50% tall and 50% short
b)
75%tall and 25% short
c)
100%short
9.
This is an example of what?
a)
Complete dominance
b)
Incomplete dominance
c)
Codominance
d)
None of the above
10.
If T=Tall & t=short, what is the genotypic ratio?
a)
1:3
b)
3:1
c)
1:2:1
d)
2:2
11.
If a Homozygous red snapdragon and a Heterozygous pink snapdragon were crossed - what percentage of the offspring would be homozygous white?
a)
0%
b)
25%
c)
50%
d)
75%
12.
An organism's appearance is known as its
a)
heredity
b)
phenotype
c)
genotype
d)
pedigree
13.
The inherited combination of alleles is known as the offspring's
a)
heredity
b)
phenotype
c)
genotype
d)
redigree
14.
W=white hair
w= non-white hair
If you cross a horse with WW and a horse with ww what fraction of the offspring would be expected to have white hair?
w= non-white hair
If you cross a horse with WW and a horse with ww what fraction of the offspring would be expected to have white hair?
a)
none
b)
3/4
c)
1/2
d)
all
15.
This type of inheritance pattern shows BOTH traits in possible offspring
a)
complete dominance
b)
incomplete dominance
c)
co-dominance
d)
dominant pattern
16.
In humans, skin tone is caused by 3 genes, each with 2 alleles. This is an example of
a)
codominance
b)
incomplete dominance
c)
polygenic inheritance
d)
multiple alleles
17.
Which of Mendel's laws states that alleles are separated during meiosis?
a)
Law of Dominance
b)
Law of Segregation
c)
Law of Independent Assortment
d)
Law of Meiosis
18.
If a person has a genotype of Rr, what do you know about their gametes (sex cells)?
a)
They will all carry the R allele.
b)
They will all carry Rr.
c)
Some will carry R, some will carry r.
d)
They will all carry the r allele.
19.
Which of the following does NOT describe the flowers in the F1 Generation?
a)
Hybrid
b)
Heterozygous
c)
Purebred
20.
If a father is AA and a mother is AB, what is the probability for a child with AB blood?
a)
0%
b)
25%
c)
50%
d)
75%
21.
A man with type O blood is accused of being the father of a type B baby. The mother is type A. Could this man be the father?
a)
Yes
b)
No
22.
How many phenotypes are there in ABO blood types?
a)
3
b)
4
c)
6
d)
12
23.
What is the probability of flipping a coin and getting heads three times in a row?
a)
1/8
b)
1/6
c)
1/16
d)
3:1
24.
What do you have a better probability of:
a)
flipping three heads in a row
b)
drawing an ace of spades from a deck of cards
c)
rolling a 6 on a dice
d)
Making a 100 on this test
25.
Which of the following is the phenotype for eye color of this individual?
a)
Brown Eyes
b)
Green Eyes
c)
BB
d)
Bb
26.
Which of Mendel's laws states that alleles are distributed to gametes independent of one another?
a)
Law of Dominance
b)
Law of Segregation
c)
Law of Independent Assortment
d)
Law of Meiosis
27.
The different forms of a gene are known as _____________.
a)
Codons
b)
Proteins
c)
Alleles
d)
Nucleotides
28.
A calico cat shows both the traits for orange fur and black fur. What kind of allele expression is this?
a)
Incomplete Dominance
b)
Co dominance
29.
The different forms of a gene are called
a)
traits
b)
pollinators
c)
alleles
d)
hybrids
30.
How many alleles does an individual have for each trait?
a)
1
b)
2
c)
3
d)
4
31.
How many PAIRS of chromosomes do humans have?
a)
23
b)
46
c)
1
d)
2
32.
How many PAIRS of sex chromosomes do humans have?
a)
23
b)
46
c)
1
d)
2
33.
In chickens, feather color is codominant. If a black chicken BB is mated with one that is black and white (BW) what are the chances of having a chicken that is black and white?
a)
50%
b)
0%
c)
25%
d)
100%
34.
In Andalusian fowls, black individuals (BB) and white individuals (bb) are homozygous. Heterozygous individuals are grey (Bb).
What is the genotype ratio for a cross between a grey fowl and a white fowl?
What is the genotype ratio for a cross between a grey fowl and a white fowl?
a)
2 BB: 2 Bb: 0 bb
b)
0 BB: 4 Bb: 0 bb
c)
0 BB: 2 Bb: 2 b
d)
1 BB: 2 Bb: 1 bb
35.
In Andalusian fowls, black individuals (BB) and white individuals (bb) are homozygous. Heterozygous individuals are grey (Bb).
Cross a black fowl with a white fowl. What is the phenotype ratio?
Cross a black fowl with a white fowl. What is the phenotype ratio?
a)
4 black: 0 grey: 0 white
b)
2 black: 2 grey: 0 white
c)
0 black: 4 grey: 0 white
d)
0 black: 2 grey: 2 white
36.
In some carnations, flower color exhibits codominance. When crosses, Red (R) and white (W) flowers make speckled flowers (RW) that show both colors.
Complete a cross between 2 speckled flowers and find the genotype ratio.
Complete a cross between 2 speckled flowers and find the genotype ratio.
a)
0 RR: 4 RW: 0 WW
b)
2 RR: 2 RW: 0 WW
c)
1 RR: 2 RW: 1 WW
d)
0 RR: 2 RW: 2 WW
37.
if red hair (R) and white hair (W) are codominant, what is the phenotype of a bunny with genotype RW
a)
pink fur
b)
red and white fur
c)
red fur
d)
white fur
38.
A homozygous dominant dog with brown fur is crossed with a heterozygous dog with brown fur. What are the percentages of the possible genotypes?
a)
100% BB
b)
75% BB and 25%Bb
c)
50 % BB and 50% Bb
d)
50% Bb and 50% bb
39.
In some carnations, flower color exhibits codominance. When crosses, Red (R) and white (W) flowers make speckled flowers (RW) that show both colors.
Complete a cross between A speckled flower and a red flower. Find the phenotype ratio.
Complete a cross between A speckled flower and a red flower. Find the phenotype ratio.
a)
2 red: 2 speckled: 0 white
b)
4 red: 0 speckled: 0 white
c)
0 red: 4 speckled: 0 white
d)
0 red: 2 speckled: 2 white
40.
A roan cow shows co-dominance in fur color (orange and white). What is the phenotype ratio expected if a roan cow and a roan steer mate together?
a)
4: Orange and White
b)
1: Orange : 1 White
c)
2 Orange: 2 Orange and White: 0 White
d)
1: Orange: 2 Orange and White: 1 White
41.
R = tongue rolling, r = no tongue rolling. An individual who is Rr can roll their tongue. What type of inheritance pattern does this follow?
a)
Complete Dominance
b)
Incomplete Dominance
c)
Co-Dominance
d)
Sex-linked
42.
What gamete possibilities could come from this parent's genotype?
a)
AB, AB, aB, aB
b)
Ab, AB, Ab, ab
c)
Ab, Ab, Ab, Ab
d)
AB, aB, ab, aB
43.
What gamete possibilities could come from this parent's genotype?
a)
aB, ab, AB, Ab
b)
aB, Ab, AB, AB
c)
AB, aB, AB, Ab
d)
aB, ab, aB, ab
44.
What goes in box 1
a)
AABb
b)
AABB
c)
aabb
d)
AaBb
45.
What goes in box 5
a)
AABB
b)
AaBb
c)
AaBb
d)
AAbb
46.
How many letters would go above each box 1, 2, 3, and 4?
a)
1 letter (ie. A)
b)
2 different letter (i.e. AB)
47.
Cross Two Homozygous plants
(RRYY x rryy)
R = round seeds, r = wrinkled seeds Y = yellow seeds, y = green seeds
What percent will have Round and Yellow seeds?
(RRYY x rryy)
R = round seeds, r = wrinkled seeds Y = yellow seeds, y = green seeds
What percent will have Round and Yellow seeds?
a)
0%
b)
25%
c)
50%
d)
100%
48.
What is the genotype for a pea plant heterozygous for round seeds (R), and homozygous recessive for green seeds (y)?
a)
Ry
b)
RRyy
c)
RrYy
d)
Rryy
49.
How are Incomplete Dominance and Co Dominance different than a normal Mendelian cross?
a)
There is no difference
b)
The heterozygous genotype has a unique phenotype
c)
There is no heterozygous genotype
d)
There is only one phenotype regardless of genotype.
50.
Which of the following means many traits?
a)
Codominance
b)
Multi-Genetics
c)
Polygenic
d)
Incomplete Dominance
51.
If there is 1 gene but3 or more alleles, then this type of inheritance is possible.
a)
polygenic
b)
multiple alleles
c)
epistasis
d)
simple dominant/recessive
52.
What type of inheritance is shown in the F1 generation?
a)
simple dominant/recessive
b)
incomplete dominance
c)
polygenic inheritance
d)
multiple alleles
53.
What type of inheritance is responsible for the various skin tones?
a)
multiple alleles
b)
polygenic inheritance
c)
epistasis
d)
codominance
54.
What are the blood types of the possible children that a woman (type O) and man (type AB) can have?
a)
O and AB
b)
O and A
c)
O and B
d)
A and B
55.
There are multiple alleles for the ABO blood group. Why are only two of these alleles present in any one individual?
a)
Each parent contributes only one allele for the ABO blood group to the offspring.
b)
There are not enough nucleotides in a red blood cell to produce a third allele.
c)
Each allele in the ABO group must be dominant or recessive
d)
Blood group alleles are not segregated during meiosis.
56.
Meiosis results in cells with
a)
half the number of chromosomes as the parent cell
b)
double the number of chromosomes as the parent cell
c)
identical number of chromosomes as the parent cell
d)
triple the number of chromosomes as the parent cell
57.
What would be blood groups of the progeny of heterozygous father with blood group A and mother homozygous for B?
a)
A and B
b)
AB and A
c)
O
d)
AB and B
58.
I have 2 X chromosomes. What am I?
a)
Male
b)
Female
59.
What is NOT a possible genotype for someone with type B blood?
a)
BB
b)
AB
c)
BO
60.
What type of inheritance is determined by multiple genes located at different loci on different chromosomes and there can be a range of traits?
a)
Codominance
b)
Incomplete dominance
c)
Polygenic traits
61.
Aa, DD, bB, yy are all examples of
a)
genotypes
b)
phenotypes
62.
Only changes in ________ cells can be passed to offspring
a)
sex
b)
haploid
c)
diploid
100 %
