WorksheetsGeno/Pheno, Homo/Hetero, Dominant/Recessive
Total questions: 36
Worksheet time: 39mins
Name
Class
Date
1.
Alternative forms of a gene are called
a)
Alleles
b)
Homozygous
c)
DNA
d)
Genetics
2.
The physical appearance of an organism based on traits
a)
Genotype
b)
Phenotype
c)
Meiosis
d)
Genetics
3.
The allele combinations
a)
genetics
b)
mitosis
c)
genotype
d)
phenotype
4.
This trait will always be expressed if present because it will mask the expression of others
a)
stem cells
b)
heterozygous
c)
dominant
d)
recessive
5.
Hair colour is an example of
a)
genotype
b)
phenotype
6.
Having the genes for baldness is an example of
a)
genotype
b)
phenotype
7.
How tall you are is an example of
a)
genotype
b)
phenotype
8.
Being a carrier of a genetic disorder is an example of
a)
genotype
b)
phenotype
9.
Having blue eyes is an example of
a)
genotype
b)
phenotype
10.
Having the genes for blue eyes is an example of
a)
genotype
b)
phenotype
11.
Having genes that make you more likely to be good at sprinting is an aspect of
a)
genotype
b)
phenotype
12.
Usain Bolt trains daily to improve his muscular explosiveness. Muscle size is an example of
a)
genotype
b)
phenotype
13.
Usain Bolt's genes affect his height. Being 1.95m tall is an example of
a)
genotype
b)
phenotype
14.
The genotype of: bb will have the PHENOTYPE of...
a)
black fur
b)
white fur
c)
course hair
d)
fine hair
15.
The genotype of: AA will have the PHENOTYPE of...
a)
albinism
b)
normal pigment
c)
albino carrier
16.
The genotype of: Bbll will have the PHENOTYPE of...
a)
black fur/short tail
b)
black fur/long tail
c)
white fur/short tail
d)
white fur/long tail
17.
The genotype of: Heterozygous Course Hair will have the alleles of...
a)
Hh
b)
HH
c)
hh
18.
The genotype of: albino carrier will have the alleles of...
a)
Aa
b)
AA
c)
aa
19.
Consider the alleles: aahh, which of these IS NOT possible way to describe this gerbil?
a)
pure albino / pure fine hair
b)
albino with fine hair
c)
heterozygous albino / heterozygous fine hair
d)
All are accurate descriptions
20.
Homozygous Heterozygous
a)
HH Bb
b)
hh. Bb
c)
H. Bb
d)
Hh bb
21.
If a trait is recessive, it needs to be inherited from ___ parents to be 'expressed'.
a)
one
b)
both
22.
Which of the following is heterozygous
a)
FF
b)
tt
c)
Gg
d)
RR
23.
Which of the following is homozygous recessive?
a)
rr
b)
AA
c)
TT
d)
Ff
24.
What does the prefix hetero- in heterozygous mean?
a)
same
b)
different
c)
dating
d)
human
25.
Which of the following is homozygous dominant?
a)
Jj
b)
Rr
c)
MM
d)
ee
26.
The physical appearance of a trait is known as the-
a)
genotype
b)
phenotype
c)
characteristics
d)
intelligence
27.
How many letters does a genotype contain?
a)
1
b)
2
c)
3
d)
4
28.
The two-letter code that describes the genetic traits of an organism is called a-
a)
Phenotype
b)
Genotype
c)
Physical Appearance
d)
Intelligence
29.
The different forms of a gene are called
a)
traits
b)
chromosomes
c)
alleles
d)
peas
30.
A section on a chromosome that has genetic information for one trait is called a
a)
gene
b)
allele
c)
phenotype
d)
genotype
31.
the study of heredity
a)
Botany
b)
Astronomy
c)
Genetics
d)
Ecology
32.
What you see, or the physical appearance.
a)
Genotype
b)
Phenotype
c)
Homozygous
d)
Heterozygous
33.
How much of your DNA do you inherit from your mom?
a)
10%
b)
25%
c)
50%
d)
it varies
34.
These types of alleles are only expressed if the organism has two copies
a)
dominant
b)
recessive
c)
homozygous
d)
heterozygous
35.
Long strands of DNA are called
a)
DNA
b)
Chromosome
c)
Alleles
d)
Phenotype
36.
Dominant Traits show up
a)
Always
b)
Only when there are two
100 %
