Name: 
 

Quiz: Defining Terms (Chapter 7)



Matching
 
 
a.
Codominance-
b.
Polygenic traits-
c.
Huntingtons disease-
d.
pedigree-
e.
X Chromosome Inactivation-
f.
Cystic Fibrosis-
g.
Karyotypes
h.
XY -
i.
carrier-
j.
Thomas Hunt Morgan-
k.
sex-linked genes-
l.
XX-
m.
multiple-allele trait-
n.
linked traits-
o.
Incomplete Dominance-
 

 1. 

worked with fruit flies (Drosophila melanogaster) to map linked genes
 

 2. 

Traits determined by several alleles (like blood type)
 

 3. 

Picture of all chromosomes in a cell
 

 4. 

Genes located on sex-chromosomes
 

 5. 

two or more genes determine trait
 

 6. 

A chart for tracing genes in a family
 

 7. 

Male genotype
 

 8. 

Both traits are expressed completely
 

 9. 

recessive disorder that affects sweat glands and mucus glands. 
 

 10. 

Neither allele completely dominant
 

 11. 

Female genotype
 

 12. 

Traits found on the same chromosomes
 

 13. 

In each cell of female, one of two chromosome is randomly “turned off”.
 

 14. 

A person who is heterozygous for disease is called a ________- does not show disease symptoms
 

 15. 

This dominant disease strikes later in life, person can have children before disease appears.  Allele is passed on even though disease is fatal
 



 
Check Your Work     Start Over