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Chapter 3 Test
Test Description: Heredity and Genetics
Instructions: Answer all questions to get your test result.
1) A gene combination in which a mixture of traits shows is called
A
codominance
B
heredity
C
energy
D
matter
2) Traits that are inherited with sex chromosomes are
A
mutation traits
B
uncontrolled traits
C
controlled traits
D
sex-linked traits
3) A change in a gene is a
A
mutation
B
trait
C
environment
D
gene
4) Characteristics of an organism are called
A
DNA
B
traits
C
chemicals
D
chromosomes
5) An organism with two like genes for a trait is said to be (2 capital letters or 2 lower case letters)
A
strong
B
blue eyed
C
homozygous
D
heterozygous
6) A human body cell contains how many chromosomes?
A
10
B
40
C
23
D
46
7) How many chromosomes does a human egg or sperm carry?
A
13
B
23
C
46
D
20
8) Color blindness is
A
When extra oxygen gets into the body
B
A sex linked disorder
C
Heart disease
D
Energy on the DNA strand
9) A dominant gene usually shows itself over a
A
environmental factor
B
inherited trait
C
sex-linked trait
D
recessive gene
10) The process by which plants with desirable traits are crossed until a new variety of plant is developed is called
A
recessive traits
B
mutations
C
mass selection
D
meiosis
11) An organism receives chromosomes from
A
its parents
B
the atmosphere
C
the environment
D
mutations
12) The passing of traits from parents to offspring is called
A
heredity
B
DNA
C
environmental factors
D
chromosomes
13) In a strand of DNA Adenine (A) goes with Thymine (T) and Cytosine (C) goes with
A
guanine (G)
B
cytoplasm
C
RNA
D
cells
14) The field of biology that studies heredity is
A
reproduction
B
genetics
C
cell division
D
duplication
15) A pea plant with two tall genes is said to be
A
heterozygous tall
B
recessive
C
homozygous tall
D
karotype
16) A Punnett square shows combinations of genes and the possible outcomes show possible
A
chromosomes the organism might have
B
DNA the organism might have
C
traits the organism might have
D
hybrids the organism might have
17) A type of cell division that produces gametes is
A
codominance
B
replication
C
meiosis
D
heredity
18) A male gamete contains
A
one chromosome
B
one X and one Y chromosome (XY)
C
two Y chromosomes (YY)
D
two X chromosomes (XX)
*select an answer for all questions
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