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WorksheetsMendel Genetic Quiz
Total questions: 44
Worksheet time: 31mins
Name
Class
Date
1.
Why did Mendel choose to use pea plants in his study of heredity?
a)
they were small plants that were easy to use
b)
he had lots of them
c)
they had a variety of traits to study and grew quickly
d)
he was told to use the pea plants
2.
___________ is the study of how traits are passed from parent to offspring.
a)
genes
b)
heredity
c)
genetics
d)
inheritance
3.
A __________ is a feature that has different forms. An example of this is eye color.
a)
allele
b)
gene
c)
trait
d)
characteristic
4.
The passing of traits from parent to offspring is called _________.
a)
genetics
b)
heredity
c)
genetic engineering
d)
selective breeding
5.
After Mendel crossed a true-breeding purple plant and a true-breeding white plant, what color were the offspring in the first generation?
a)
white
b)
light purple
c)
purple
d)
some were purple and some were white
6.
Mendel discovered that a ________ trait will sometimes disappear or go away in the next generation because it is overpowered by the ______ trait.
a)
dominant; recessive
b)
recessive; dominant
c)
darker; lighter
d)
lighter; darker
7.
In _________________, sperm in the pollen of one plant fertilizes eggs in the flower of another plant.
a)
asexual reproduction
b)
cross-pollination
c)
sexual reproduction
d)
self-pollination
8.
What is a factor that is covered up by another trait?
a)
Recessive
b)
Dominant
9.
What is a hybrid?
a)
Crossing two organisms with different traits
b)
A cool car
c)
A parent
10.
What is the passing of traits from parents to offspring known as?
a)
Heredity
b)
Genetics
c)
Punnett Square
11.
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
12.
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%
13.
In this punnett square, what is the missing genotype?
a)
AA
b)
AO
c)
AB
d)
BB
14.
R = red and W = white
In the RW genotype = pink
What pattern of inheritance is being shown?
In the RW genotype = pink
What pattern of inheritance is being shown?
a)
dominant/recessive
b)
incomplete
c)
multiple alleles
d)
polygenic inheritance
15.
Which statement describes how two organisms may show the same trait, yet have different genotypes for that phenotype?
a)
Both are homozygous for the dominant trait.
b)
One is homozygous dominant, and the other homozygous recessive.
c)
Both are heterozygous for the dominant trait.
d)
One is homozygous dominant and the other heterozygous.
16.
A female guinea pig homozygous dominant for black fur color is mated with a male homozygous for white fur color. In a litter of eight offspring, probability would predict there would be _____.
a)
8 black guinea pigs
b)
4 black and 4 white guinea pigs
c)
2 black, 4 gray, and 2 white guinea pigs
d)
8 white guinea pigs
17.
How many pairs of chromosomes are in your cells?
a)
23
b)
19
c)
12
d)
10
18.
Which of the following is an example of a phenotype:
a)
Aa
b)
an allele
c)
hair color
d)
your genes
19.
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
20.
(SC.912.L.16.9) Genes for medically important proteins can be cloned and inserted into bacteria, as shown in the diagram below. Why can bacteria recognize a human gene and then produce a human protein?
a)
DNA replication in bacteria and humans is the same.
b)
Bacterial cells contain the same organelles as human cells.
c)
The basic components of DNA are the same in humans and bacteria.
d)
Bacterial cells and human cells contain the same kind of chromosomes.
21.
(SC.912.L.16.2) Hemophilia is a sex-linked, recessive trait. Which of the following describes the probability of hemophilia in the offspring of a man who does not have hemophilia and a woman who is a heterozygous carrier?
a)
There is a 25% chance that their sons will have hemophilia.
b)
There is a 100% chance that their sons will have hemophilia.
c)
There is a 0% chance that their daughters will have hemophilia.
d)
There is a 50% chance that their daughters will have hemophilia.
22.
(SC.912.L.16.10) While genetic engineering has positive benefits, there are also concerns associated with widespread use of genetic engineering in agriculture. If many farmers begin to plant more genetically modified crops that have an increased tolerance to insects, which of the following may result?
a)
an increase in the use of pesticides
b)
a decrease in genetic diversity of the crops
c)
an increase in the contamination of the water supply
d)
a decrease in crop productivity on these treated fields
23.
(SC.912.L.16.13) A fertilized egg undergoes several stages before it is successfully implanted. The diagram below shows these stages as the fertilized egg travels through the female human reproductive system. In which of the following structures of the female human reproductive system is the blastocyst implanted during normal human development?
a)
ovary
b)
uterus
c)
vagina
d)
amniotic sac
24.
(SC.912.L.16.17) Mitosis and meiosis are processes involved in cellular reproduction. Which of the following describes an event that results from mitosis but NOT meiosis?
a)
two stages of cell division
b)
replication of cellular genetic material
c)
daughter cells that are identical to the parent cell
d)
four daughter cells that are produced from each parent cell
25.
During DNA replication, the nitrogen base Guanine (G) always pairs with
a)
cytosine
b)
guanine
c)
thymine
d)
adenine
26.
Which process is necessary for sexual reproduction but not for asexual reproduction?
a)
production of new cells
b)
division of cells
c)
meiosis
d)
copying of genetic material
27.
In humans, the allele for a widow's peak (W) is dominant. A woman with the genotype "ww" has children with a man with the genotype "Ww". If the couple has eight children, how many children would you logically expect to have a widow's peak?
a)
4
b)
2
c)
0
d)
1
28.
A muscle cell from a male duck has 80 chromosomes. How many chromosomes would be found in a sperm cell from this duck?
a)
160
b)
80
c)
40
d)
20
29.
In pea plants, round seeds (R) are dominant over dented seeds (r). If two plants that are hybrid for round seeds (Rr) are crossed, what percentage of the offspring would you expect to have found seeds?
a)
100%
b)
50%
c)
75%
d)
25%
30.
A scientist created a Punnett square involving plant traits. What is a Punnett square?
a)
A table that describes the number of offspring produced from a genetic cross.
b)
A diagram that identifies where genes are located on chromosomes.
c)
/a tool used to predict the possible outcomes of a genetic cross.
d)
A chart that lists the traits expressed by the offspring of a genetic cross.
31.
In humans, acondroplasia "dwarfism"(D) is dominant over normal(d). A homozygous dominant person will die before the age of one. A heterozygous person is dwarfed. A homozygous recessive individual is normal. A heterozygous dwarf man marries a heterozygous dwarf woman...... What is the probability of having a normal child?
a)
25%
b)
50%
c)
75%
d)
100%
32.
Which of the following is considered a disadvantage of asexual reproduction?
a)
There is no variation in offspring
b)
New organisms cannot be formed
c)
Neither answer is correct
d)
Both answers are correct
33.
True or False: In sexual reproduction, the recessive trait generally appears more often.
a)
True
b)
False
34.
DNA is found where in the cell?
a)
In the nucleus
b)
In the cytoplasm
c)
In the cell wall
d)
In organelles
35.
Which of the following is considered a to be a benefit of sexual reproduction?
a)
Only the strongest parent's character traits are passed down to the offspring
b)
Offspring carry traits and characteristics of both parents
c)
Neither answer is correct
d)
Both answers are correct
36.
Organisms that reproduce sexually are best suited to survive in an ecosystem changed by a natural disaster because of which of the following?
a)
They only pass down one set of character traits
b)
They do not need to search for a mate
c)
Their offspring can adapt to the changes
d)
They can survive with less resources
37.
Heredity is
a)
The study of genes that are found in DNA
b)
The process of passing traits from parents to offspring
c)
The capital and small letters used to represent the dominant and recessive traits
d)
The physical appearance of alleles
38.
Pollution can lead to which of the following?
a)
Increase in all species
b)
Destruction of all species that cannot adapt
39.
Breeding to get desired results in the offspring, is known as what?
a)
Natural Selection
b)
Sexual reproduction
c)
Selective breeding
d)
Asexual reproduction
40.
What type of selection is this?
a)
directional selection
b)
disruptive selection
c)
stabilizing selection
41.
What type of selection is this?
a)
directional selection
b)
disruptive selection
c)
stabilizing selection
42.
What type of selection is this?
a)
Disruptive
b)
Directional
c)
Stabilizing
43.
What must members of the same population be able to do?
a)
Reproduce with each other
b)
Fight each other
c)
They must look the same
d)
They must act the same
44.
What are sources of genetic variation?
a)
mutations
b)
genetic shuffling
c)
mutations and genetic shuffling
d)
mutations and migrations
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