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WorksheetsGenetics Vocabulary
Total questions: 21
Worksheet time: 11mins
Name
Class
Date
1.
Which sentence shows the correct relationship between the word allele and gene?
a)
allele is a type of gene
b)
gene is a type of allele
c)
genes and alleles have DNA
d)
genes are larger than alleles
2.
The study of genetics is
a)
how genes produce traits that are inherited
b)
how genes bring about characteristics
c)
how living things inherit
d)
how proteins are made
3.
What allele is represented in the picture?
a)
Chromosome
b)
Gene
c)
Unattached
d)
Earlobe
4.
Select the correct allele key if hairline shape is due to a single gene. Widow's peak is the dominant trait and straight hairline is recessive.
a)
A
b)
B
c)
C
d)
D
5.
AA
a)
Homozygous Dominant
b)
Homozygous Recessive
c)
Heterozygous
d)
Heterozygous Dominant
6.
Pp
a)
Homozygous Dominant
b)
Homozygous Recessive
c)
Heterozygous
d)
Heterozygous Dominant
7.
Mm
a)
Homozygous Dominant
b)
Homozygous Recessive
c)
Heterozygous
d)
Heterozygous Dominant
8.
rr
a)
Homozygous Dominant
b)
Homozygous Recessive
c)
Heterozygous
d)
Heterozygous Dominant
9.
Tt
a)
Homozygous Dominant
b)
Homozygous Recessive
c)
Heterozygous
d)
Heterozygous Dominant
10.
What is the difference between genotype and phenotype?
a)
Genotype is the genes an organism expresses and phenotype is the alleles an organism expresses.
b)
Genotype is the genes an organism expresses and phenotype is the physical appearance.
c)
Genotype is the alleles an organism expresses and phenotype is the genes an organism expresses.
d)
Genotype can be expressed with one letter and phenotype with two letters.
11.
A
a)
Recessive
b)
Dominant
c)
Homozygous
d)
Heterozygous
12.
r
a)
Recessive
b)
Dominant
c)
Homozygous
d)
Heterozygous
13.
L
a)
Recessive
b)
Dominant
c)
Homozygous
d)
Heterozygous
14.
i
a)
Recessive
b)
Dominant
c)
Homozygous
d)
Heterozygous
15.
The dominant allele uses a _________ letter.
a)
Lower case
b)
Upper case
c)
Italic
d)
Bold
16.
The recessive allele uses a _________ letter.
a)
Lower case
b)
Upper case
c)
Italic
d)
Bold
17.
Diploid cells have
a)
twice the number of chromosomes
b)
half the number of chromosomes
c)
four times the number of chromosomes
d)
three times the number of chromosomes
18.
Haploid cells have
a)
twice the number of chromosomes
b)
half the number of chromosomes
c)
four times the number of chromosomes
d)
three times the number of chromosomes
19.
Which statement or word does not describe a gamete?
a)
haploid
b)
sex cells
c)
formed through meiosis
d)
asexual reproduction
20.
Which statement or word does not describe a somatic?
a)
diploid
b)
all cells
c)
formed through meiosis
d)
asexual reproduction
21.
Which statement is untrue when making an allele key?
a)
Use the letter of the dominant trait
b)
The letter of the recessive is always lower case
c)
You need to know which allele is dominant
d)
The letter of the recessive trait is capital
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