WorksheetsGenes Alleles Chromosomes
Total questions: 10
Worksheet time: 3mins
Name
Class
Date
1.
Where inside a cell are chromosomes found?
a)
Golgi apparatus
b)
Nucleus
c)
Mitochondria
d)
Ribosome
2.
Chromosomes contain tightly wound molecules of...
a)
DNA
b)
RNA
c)
IRA
d)
PMA
3.
Humans have _______ pairs of chromosomes, for a total of _______ chromosomes.
a)
10, 20
b)
25, 100
c)
23, 46
d)
46, 92
4.
A segment of DNA that codes for a trait
a)
gene
b)
centromere
c)
chromosome
d)
chromatid
5.
A version or variation of a gene
a)
trait
b)
gene
c)
allele
d)
DNA
6.
An observable characteristic in an organism is...
a)
Trait
b)
Undefinable
c)
Cell
d)
DNA
7.
The observable expression of a trait is its
a)
phenotype
b)
genotype
c)
chromosome
d)
allele
8.
The alleles that an organism has/inherits are its
a)
genotype
b)
phenotype
c)
chromosome
d)
recessive
9.
a)
Phenotype
b)
Genotype
10.
a)
Phenotype
b)
Genotype
100 %
