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WorksheetsUnit 1 Lesson 4: Heredity Quiz
Total questions: 30
Worksheet time: 3600secs
Name
Class
Date
1.
The passing of traits from parents to offspring
a)
heredity
b)
genetics
c)
trait
d)
alleles
2.
The different forms of a gene
a)
heredity
b)
genetics
c)
gene
d)
alleles
3.
The factors that control a trait
a)
genetics
b)
trait
c)
gene
d)
alleles
4.
An organism's physical appearance or visible traits
a)
fertilization
b)
genotype
c)
phenotype
d)
homozygous
5.
An organism's genetic makeup, or allele combination
a)
fertilization
b)
genotype
c)
phenotype
d)
heterozygous
6.
An organism that has two different alleles for a trait (hybrid)
a)
fertilization
b)
genotype
c)
homozygous
d)
heterozygous
7.
An organism that has two identical alleles for a trait (purebred)
a)
genotype
b)
phenotype
c)
homozygous
d)
heterozygous
8.
A new organism begins to form when egg and sperm join in a process called
a)
fertilization
b)
phenotype
c)
homozygous
d)
heterozygous
9.
How many alleles (letters) does a child get from each parent for each trait?
a)
1
b)
2
c)
3
d)
4
10.
How many alleles (letters) do each person carry for a trait?
a)
1
b)
2
c)
3
d)
4
11.
Dominant alleles are represented by a:
a)
Male gene
b)
lowercase letter
c)
recessive trait
d)
capital letter
12.
Aa, DD, bB, yy are all examples of
a)
genotypes
b)
phenotypes
13.
In a heterozygous genotype, the ___________ allele takes over in the phenotype.
a)
recessive
b)
dominant
c)
lower case letter
d)
both
14.
What you see, or the physical appearance.
a)
Genotype
b)
Phenotype
c)
Homozygous
d)
Heterozygous
15.
Aa is
a)
homozygous
b)
heterozygous
16.
Which of the following is a phenotype?
a)
Aa
b)
red hair
c)
heterozygous
d)
DNA
17.
Which of the following genotypes is homozygous dominant?
a)
A
b)
Aa
c)
AA
d)
aa
18.
Which of the following genotypes is heterozygous?
a)
Bb
b)
BB
c)
bb
d)
B
19.
Which of the following is homozygous recessive?
a)
Tt
b)
tt
c)
TT
d)
T
20.
Chromosomes are
a)
Found in the mitochondria
b)
Made of 20 pairs
c)
Long strands of DNA that contain many genes
d)
Bundles of DNA that contain only one gene each
21.
Traits that are passed from parents to offspring are always
a)
Recessive
b)
Inherited
c)
Dominant
d)
Heterozygous
22.
If a gene is always expressed or always shown with a capital letter it is
a)
Bossy
b)
Recessive
c)
Yelling
d)
Dominant
23.
If a certain trait has two different alleles (one dominant and one recessive) it is called __________________
a)
Homozygous
b)
Confused
c)
Differentiated
d)
Heterozygous
24.
This variation of a gene can only be expressed if it is received from both parents
a)
Shy
b)
Heterozygous
c)
Variation
d)
Recessive
25.
Which statement describes asexual and sexual reproduction?
a)
Asexual is one part of sexual reproduction.
b)
Sexual reproduction happens before asexual reproduction.
c)
Asexual needs one parent, and sexual needs two parents.
d)
Sexual only happens in animals, and asexual happens only in plants.
26.
What is an advantage of sexual reproduction over asexual reproduction?
a)
Sexual reproduction produces identical offspring.
b)
Sexual reproduction happens before asexual reproduction.
c)
Sexual reproduction generates a large number of offspring.
d)
Sexual reproduction causes genetic variation in offspring.
27.
Genes are unable to determine a person's
a)
eye color
b)
athletic ability
c)
shape of ears
d)
type of chin
28.
Which is an inherited trait?
a)
speaking in front of a crowd
b)
having green eyes
c)
knowing math facts
d)
becoming an extrovert
29.
True or False: Recessive traits are ALWAYS present
a)
True
b)
False
30.
B=Blonde Hair b=Brown Hair
If a person was Bb they would have
If a person was Bb they would have
a)
Blonde Hair
b)
Brown Hair
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