WorksheetsMendel Genetics
Total questions: 33
Worksheet time: 17mins
Name
Class
Date
1.
When Mendel crossed true-breeding tall plants with true-breeding short plants, all the offspring were tall because
a)
the allele for tall plants is recesive
b)
the allele for short plants is dominant
c)
the allele for tall plants is dominant
d)
they were true-breeding like their parents
2.
The principles of probability can be used to
a)
predict the traits of the offspring produced by genetic crosses
b)
determine the actual outcomes of genetic crosses
c)
predict the traits of the parents used in genetic crosses
d)
decide which organisms are best to use in genetic crosses
3.
Mendel concluded that traits are
a)
not inherited by offspring
b)
inherited through the passing of factors from parent to offspring
c)
determined by dominant factors only
d)
determined by recessive factors only
4.
A punnett square shows all of the following EXCEPT
a)
all possible results of a genetic cross
b)
the genotypes of the offspring
c)
the alleles in the gametes of each parent
d)
the actual results of a genetic cross
5.
A cross between a heterozygous man and a woman who is homozygous dominant would look like which of the following
a)
Nn x Nn
b)
Nn x NN
c)
NN x NN
d)
Nn x nn
6.
Gregor Mendel used pea plants to study
a)
flowering
b)
gamete formation
c)
the inheritance of traits
d)
cross-pollination
7.
Gregor Mendel's characteristics that vary from one individual to another are known as
a)
alleles
b)
traits
c)
genes
d)
characters
8.
The principle of dominance states that
a)
all alleles are dominant
b)
all alleles are recessive
c)
some alleles are dominant and some alleles are recessive
d)
alleles are neither dominant or recessive
9.
Organisms that have two identical alleles for a particular trait are said to be
a)
hybrid
b)
homozygous
c)
heterozygous
d)
dominant
10.
What principle states that during gamete formation genes for different traits separate independently of one another?
a)
principle of dominance
b)
principle of independent assortment
c)
principle of probabilities
d)
principle of segregation
11.
A cross between a recessive male and a heterozygous female would look like which of the following
a)
nn x NN
b)
NN x Nn
c)
Nn x NN
d)
nn x Nn
12.
Mendel's principles of genetics apply to
a)
plants only
b)
animals only
c)
pea plants only
d)
all organisms
13.
Which of the following indicates a hybrid genotype?
a)
NN
b)
Rr
c)
tt
d)
PP
14.
what is the chance of getting offspring that are homozygous dominant for both seed shape and seed color?
a)
1/4
b)
1/8
c)
1/16
d)
10/16
15.
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
16.
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%
17.
In the punnett square shown, what must the genotype of the missing parent be?
a)
BB
b)
Bb
c)
bb
d)
Tt
18.
An organism's gametes have ___ number of chromosomes as the original diploid body cell
a)
a quarter of the
b)
a half of the
c)
the same
d)
twice the
19.
Gametes are produced by the process of __
a)
mitosis
b)
meiosis
c)
crossing over
d)
replication
20.
The difference between prokaryote and eukaryote is shown by the presence of a ____
a)
cell wall
b)
cell membrane
c)
nucleus
d)
chloroplast
21.
This type of organism uses energy from the sun to make their own food
a)
autotroph
b)
heterotroph
c)
herbivore
d)
ominivore
22.
Which of these is required for aerobic cellular respiration?
a)
carbon dioxide
b)
sunlight
c)
oxygen
d)
chlorophyll
23.
The way a organism looks and behaves is called its
a)
genotype
b)
data
c)
phenotype
d)
gametes
24.
____ carried out the first important studies of heredity
a)
Gregor Heir
b)
Louis Armstrong
c)
Gregor Mendel
d)
Robert Hooke
25.
When you use two different traits in a cross its called?
a)
monohybrid cross
b)
dihybrid cross
c)
probability cross
d)
breeding cross
26.
Characteristics that are inherited are
a)
alleles
b)
phenotypes
c)
traits
d)
genotypes
27.
The genes of a plant are located in the ____
a)
alleles
b)
chromosomes
c)
dihybrid
d)
punnett square
28.
A segment of DNA strand has the following bases: TAC GAT
What is the complementary strand of DNA?
What is the complementary strand of DNA?
a)
UAG CAU
b)
TAG CAT
c)
ATG CTA
d)
AUG CUA
29.
Sexual reproduction provides for what to occur?
a)
cloning
b)
budding
c)
genetic stability
d)
genetic variation
30.
Before a cell goes through either mitosis or meiosis, which process must be carried out by the DNA in the nucleus?
a)
replication
b)
nondisjunction
c)
transcription
d)
translation
31.
Which term best describes the type of cell division in which parent cells produce daughter cells with the same number of chromosomes as the parent cells?
a)
mitosis
b)
meiosis
c)
spermatogenesis
d)
oogenesis
32.
How many chromosomes are contained in a human male gamete cells?
a)
11
b)
23
c)
34
d)
46
33.
In glycolysis, the first stage of cellular respiration, ATP molecules are produced. What is the NET gain of ATP molecules (per molecule of glucose) from glycolysis?
a)
1
b)
2
c)
4
d)
36
100 %
