WorksheetsGeneral Science - Genetics Test
Total questions: 50
Worksheet time: 25mins
Name
Class
Date
1.
Dominant alleles will show their effect on the phenotype when they are present.
a)
True
b)
False
2.
The principle of independent assortment states that a parent passes only one allele for a trait to their offspring.
a)
True
b)
False
3.
Recessive traits are always shown in an organism's offspring.
a)
True
b)
False
4.
In studying heredity, predicted outcomes always match actual outcomes.
a)
True
b)
False
5.
Over generations few adaptations take place which result in better defenses, escaping predators, and increasing an organism's numbers.
a)
True
b)
False
6.
Amounts of light and temperature are examples of internal influences from the environment.
a)
True
b)
False
7.
Gregor Mendel primarily researched mutations of pea plants.
a)
True
b)
False
8.
Mendel's principle of independent assortment states that alleles for one trait have no effect on inheritance of alleles for another trait.
a)
True
b)
False
9.
A Wallace square is used to predict the genetic outcomes of offspring.
a)
True
b)
False
10.
Extinction occurs for many reasons such as the destruction of a habitat and the introduction of a new species.
a)
True
b)
False
11.
DNA is found in ___________ cells.
a)
a. sex
b)
b. sperm
c)
c. all
12.
A __________ is part of the DNA code on a chromosome.
a)
a. gene
b)
b. genotype
c)
c. phenotype
13.
A __________ is the combination of the organism's genetic makeup and the environment's effect on that makeup.
a)
a. phenotype
b)
b. genotype
c)
c. gene
14.
An influence, such as sunlight and temperature, is an __________ influence.
a)
a. internal
b)
b. growing phase
c)
c. external
15.
________ is defined as either male or female except for rare species that have ability to change sex.
a)
a. Competition
b)
b. Phenotype
c)
d. Gender
16.
The study of ______________ is called genetics.
a)
a. heredity
b)
b. dominance
c)
c. pea plants
17.
Gregor Mendel studied heredity using ______ plants.
a)
a. rose
b)
b. pea
c)
c. maize
18.
Dominant traits are seen in ______________ generation.
a)
a. one
b)
b. each
c)
c. no
19.
Gregor Mendel concluded that a parent passes ______ of the alleles for a trait to their offspring.
a)
a. two
b)
b. three
c)
c. one
20.
Mendel developed the principle of independent ______________ to understand how traits are passed through generations.
a)
a. generations
b)
b. heredity
c)
d. assortment
21.
When the last individual of a species dies, that species is considered _____________.
a)
a. adapted
b)
b. rare
c)
c. extinct
22.
Production of several species from one ancestral species is called adaptive _____________.
a)
a. perception
b)
b. radiation
c)
c. evolution
23.
By selecting and breeding plants with desired __________, modern corn was developed.
a)
a. phenotypes
b)
b. characteristics
c)
c. traits
24.
An organism's genetic makeup is called its __________.
a)
a. genotype
b)
b. phenotype
c)
c. evolution
25.
When two of the same alleles are needed to be seen in the offspring's genotype, those alleles are ____________.
a)
a. recessive
b)
b. dominant
c)
c. passive
26.
Sometimes ___________ occurs because of the destruction of a habitat.
a)
a. mutation
b)
b. radiation
c)
c. extinction
27.
If you were moving toward the top of the mountain what would you not notice?
a)
a. harder to breathe
b)
b. tall trees
c)
c. cooler temperatures
28.
Where is DNA found?
a)
a. in all cells
b)
b. in the nucleus
c)
c. in the chromosomes
d)
d. all of the above
29.
An organism with 2 different alleles for a trait is considered to be a __________
a)
a. hybrid
b)
b. monohybrid
c)
c. mutation
30.
__________ selection is sometimes accomplished through mutation and adaptation.
a)
a. Artificial
b)
b. Natural
c)
c. Radiative
31.
Several factors acting over time to make a new species is called ___________.
a)
a. artificial selection
b)
b. transformation
c)
c. evolution
32.
The outcome of two parents reproducing is a/an ____________.
a)
a. gamete
b)
c. allele
c)
d. offspring
33.
A change in DNA that forms new alleles is a ________.
a)
a. mutation
b)
b. selection
c)
c. genotype
34.
shape of fruit
a)
genotype
b)
phenotype
35.
flower color
a)
genotype
b)
phenotype
36.
length of forearm
a)
genotype
b)
phenotype
37.
dog paw size
a)
genotype
b)
phenotype
38.
an organism's genetic makeup
a)
genotype
b)
phenotype
39.
Reginald Punnett
a)
evolution by natural selection
b)
principle of dominance
c)
Punnett Squares
40.
Charles Darwin
a)
evolution by natural selection
b)
principle of dominance
c)
Punnett Squares
41.
Gregor Mendel
a)
evolution by natural selection
b)
principle of dominance
c)
Punnett Squares
42.
Alfred Russell Wallace
a)
evolution by natural selection
b)
principle of dominance
c)
Punnett Squares
43.
science of heredity
a)
a. traits
b)
b. genetics
c)
c. phenotype
44.
features inherited from parents
a)
a. traits
b)
b. genetics
c)
c. phenotype
45.
passing traits from parents to offspring
a)
c. phenotype
b)
d. genotype
c)
e. heredity
46.
visible traits of an organism
a)
a. traits
b)
b. genetics
c)
c. phenotype
47.
part of the DNA code on a chromosome
a)
a. gene
b)
b. mutation
c)
c. extinction
48.
traits that are only expressed when two are present
a)
a. gene
b)
b. mutation
c)
d. recessive
49.
evidence of this is found in fossils
a)
a. gene
b)
b. mutation
c)
c. extinction
50.
alleles that show their effect whenever they are present in the genotype
a)
b. mutation
b)
c. extinction
c)
e. dominant
100 %
