WorksheetsGenetics Review
Total questions: 24
Worksheet time: 14mins
Name
Class
Date
1.
The basic unit of heredity is called a(n):
a)
Gene
b)
Allele
c)
Phenotype
d)
Genotype
2.
Different forms of a gene are called:
a)
Alleles
b)
Phenotypes
c)
Genes
d)
Chromosomes
3.
An inherited characteristic is knows as a(n):
a)
Pedigree
b)
Trait
c)
Chromatid
d)
Chromosome
4.
The study of heredity:
a)
Genetics
b)
Biology
c)
Physiology
d)
Cytology
5.
The passing of traits from parents to offspring:
a)
Heredity
b)
Dominant
c)
Recessive
d)
Polite
6.
Makes up chromosomes that are in the nucleus:
a)
DNA
b)
PTC
c)
ATP
d)
LOL
7.
A change in DNA:
a)
Mutation
b)
Phenotype
c)
Genotype
d)
Albinism
8.
When a plant fertilizes another plant:
a)
self-pollination
b)
cross-pollination
c)
true-breeding
d)
allele-breeding
9.
What carries the genes that determine sex (gender)?
a)
Sex chromosomes
b)
homologous chromosomes
c)
phenotypes
d)
karyotypes
10.
He is known as the "Father of Genetics":
a)
Mendel
b)
Punnett
c)
Sutton
d)
Hooke
11.
When gene pairs are written, the dominant allele is shown as a(n):
a)
D in front of it
b)
Capital Letter
c)
Bold letter
d)
Underlined letter
12.
Using the letter "P", what is the genotype of a heterozygous individual?
a)
Pp
b)
PP
c)
pp
d)
Ppp
13.
If the color pink (P) is dominant in flowers, the genotype of the white offspring must be:
a)
Pp
b)
pp
c)
PP
d)
Ppp
14.
The genetic makeup (allele combination) of an organism is called the:
a)
phenotype
b)
genotype
c)
probability
d)
heterozygous
15.
This is used to organize possible offspring combinations:
a)
probability
b)
Punnett square
c)
Mendel square
d)
Allele square
16.
The mathematical chance that something will happen:
a)
homozygous
b)
genotype
c)
probability
d)
heterozygous
17.
DNA is the genetic material that contains the instructions for making which biological molecule?
a)
Carbohydrates
b)
Proteins
c)
Lipids
d)
Sugars
18.
The trait that is masked if the dominant allele is present:
a)
dominant
b)
recessive
c)
wimpy
d)
cool
19.
A plant that fertilizes itself is called:
a)
self-pollinating
b)
true-breeding
c)
cross-pollinating
d)
allele-pollinating
20.
Which sex chromosomes do females have?
a)
XX
b)
XY
c)
AB
d)
BA
21.
Which sex chromosome do males have?
a)
XX
b)
XY
c)
AB
d)
BA
22.
Which allele combination is homozygous?
a)
TT
b)
Tt
c)
Aa
d)
Bb
23.
Which of the following genotypes would lead to a recessive phenotype?
a)
EE
b)
Ee
c)
ee
24.
Which type of reproduction has one parent, and genetically identical offspring?
a)
Asexual reproduction
b)
Sexual reproduction
100 %
