WorksheetsGenetics Review
Total questions: 47
Worksheet time: 2hrs 34mins
Name
Class
Date
1.
Passing on traits from parents to offspring
a)
Chromosome
b)
Genotype
c)
Heredity
d)
Allele
2.
The study of heredity
a)
Genetics
b)
Genome
c)
Allele
d)
Punnett Square
3.
The instructions of this allele are covered up by the other allele in a homologous pair. Symbolized by a small letter.
a)
Homozygous
b)
Dominant
c)
Recessive
d)
Genetics
4.
The instruction of one allele covers up the instruction
of the other allele in a homologous pair. Symbolized by a capital letter.
a)
Recessive Allele
b)
Dominant Allele
c)
Heredity
d)
Trait
5.
What did Mendel call the two kinds of traits exhibited by the pea plants (one coming from the father, one from the mother)?
a)
Genesis
b)
Elective traits
c)
Alleles
d)
Quadrants
6.
If green is dominant over purple, then what is the genotype for this individual?
a)
Purple
b)
Green
c)
GG
d)
gg
7.
Another word for homozygous is...
a)
purebred
b)
hybrid
c)
heterozygous
d)
dominant
8.
Tt is-
a)
homozygous dominant
b)
homozygous recessive
c)
heterozygous
d)
none of these
9.
If a pea plant were homozygous recessive for height, how would its alleles be represented?
a)
TT
b)
Tt
c)
tt
d)
tT
10.
Which of the following is an example of a heterozygous genotype?
a)
RR
b)
Rr
c)
rr
11.
The letters on the TOP AND SIDE of a punnett square represent ______________.
a)
The combination of alleles in offspring.
b)
The possible alleles given by the parents following meiosis.
c)
The genotype and phenotype of offspring.
d)
The results of genetic mutations in offspring.
12.
What is the predicted percentage of homozygous recessive offspring in this cross?
a)
0%
b)
25%
c)
50%
d)
75%
13.
This type of inheritance pattern shows BOTH traits in possible offspring
a)
complete dominance
b)
incomplete dominance
c)
co-dominance
d)
dominant pattern
14.
The dominant trait in this punnett square is
a)
yellow pea seeds
b)
green pea seeds
c)
there is no dominant seed
15.
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%
16.
this image is an example of
a)
codominance
b)
dominance
c)
incomplete dominance
17.
A breed of chicken shows codominance for feather color. One allele codes for black feathers, another codes for white feathers. The feathers of heterozygous chickens of this breed will be:
a)
all black
b)
all white
c)
all gray
d)
speckled black and white
18.
The "Father of Genetics"
a)
Isaac Newton
b)
Gregor Mendel
c)
Albert Einstein
d)
Robert Hooke
19.
The trait that always shows.
a)
Dominant
b)
Recessive
c)
Hidden
d)
Overt
20.
The hidden trait. You need two of these alleles for the trait to show.
a)
Dominant
b)
Recessive
c)
Hidden
d)
Overt
21.
The genetic makeup of a trait. (The letters represent this)
a)
Genes
b)
Phenotype
c)
Genotype
d)
Characteristics
22.
If a trait is homozygous the letters are the
a)
Same
b)
Different
23.
If you are homozygous recessive, the genotype would be
a)
AA
b)
aa
c)
Aa
24.
If you are homozygous dominant, the genotype would be
a)
AA
b)
aa
c)
Aa
25.
If a trait is heterozygous, the letters (alleles)are
a)
The same
b)
Different
26.
If you are heterozygous, your genotype would be
a)
AA
b)
aa
c)
Aa
27.
Another term for heterozygous is
a)
Hybrid
b)
Purebred
c)
Dominant
d)
Recessive
28.
Passing on traits from parents to offspring
a)
Chromosome
b)
Genotype
c)
Heredity
d)
Allele
29.
In some carnations, flower color exhibits codominance. Identify the correct genotypes for red, white, and speckled carnations.
a)
Red = RR, white = rr, speckled = SS
b)
Red = RR, white = WW, speckled = SS
c)
Red = RR, white = RW, Speckled = WW
d)
Red = RR, white = WW, speckled = RW
30.
If this image were real, it would represent what type of inheritance?
a)
incomplete dominance
b)
codominance
c)
polygenic inheritance
d)
compete dominance
31.
The different forms of a gene are called
a)
traits
b)
pollinators
c)
alleles
d)
hybrids
32.
When will a recessive trait be expressed?
a)
When the dominant allele is NOT present
b)
When the dominant allele is present
c)
In a heterozygous genotype
d)
In a homozygous dominant genotype
33.
What is a phenotype?
a)
The expression of a trait; physical appearance.
b)
refers to the genetic makeup of an individual
c)
An organism that has the same genes for a trait (ex. TT or tt)
d)
the passing of traits from parent to offspring
34.
Each parent contributes one of the genes for a particular trait. The genes of the pair are called:
a)
variables
b)
gametes
c)
hybrids
d)
alleles
35.
What do we use pedigrees for?
a)
To look at families
b)
To make determinations about the offspring
c)
To track traits in families
d)
Nothing
36.
In a pedigree, what shape represents a male?
a)
circle
b)
square
c)
triangle
d)
diamond
37.
How many generations are shown in this pedigree?
a)
1
b)
2
c)
3
d)
4
38.
What does an open circle represent?
a)
Not Affected Male
b)
Not Affected Female
c)
Affected Male
d)
Affected Female
39.
What does a filled in square represent?
a)
Not affected Female
b)
Not affected Male
c)
Affected Male
d)
Affected Female
40.
What does a horizontal line between a square and a circle mean?
a)
They are siblings
b)
They are cousins
c)
They are married ("together")
d)
They are the children
41.
What does a vertical line coming down from a square and circle that are connected by horizontal line indicate?
a)
They are cousins
b)
The children
c)
Aunts and Uncles
42.
AA and Aa always show up as
a)
dominant
b)
recessive
43.
aa always shows up as
a)
dominant
b)
recessive
44.
In the second generation-how many people are carriers of the trait?
a)
2
b)
3
c)
5
d)
6
45.
Which individual in the first generation is a carrier?
a)
The male
b)
The female
c)
individual 1
d)
None of the above
46.
How many kids did the mother and father from the first generation have?
a)
2
b)
4
c)
5
d)
6
47.
This pedigree represents the inheritance of hemophilia in this family. How many of the females have the hemophilia trait?
a)
8
b)
5
c)
2
d)
3
100 %
