New Activity
Play Quiz
1. 
A sex-linked trait is always...
A.
dominant.
B.
recessive.
C.
carried on the X chromosome.
D.
carried on the Y chromosome.
2. 
People with sickle-cell anemia have a:
A.
condition where the body tissues do not get enough oxygen.
B.
condition in which the blood does not clot properly.
C.
missing chromosomes.
D.
recessive, sex-linked trait.
3. 
A vertical line in a pedigree...
A.
connects siblings.
B.
connects individuals that display a form of particular trait.
C.
connect the male and female parents.
D.
connects offspring with their parents.
4. 
Which genetic disorder is caused by an extra copy of chromosomes 21?
A.
hemophilia.
B.
sickle-cell anemia.
C.
down syndrome.
D.
color blindness.
5. 
Which combination of chromosomes will produce a male offspring?
A.
two X chromosomes.
B.
one X, one Y, and one Z chromosome.
C.
two X chromosomes.
D.
one X and one Y chromosome.
6. 
Human cells contain 23 pairs of...
A.
traits.
B.
chromosomes.
C.
genomes.
D.
traits.
7. 
The genes that an organism inherits for a particular trait make up its...
A.
genome.
B.
pedigree.
C.
phenotype.
D.
genotype.
8. 
The way in which an organism expresses, or shows its traits is the organism´s...
A.
genome.
B.
pedigree.
C.
phenotype.
D.
genotype.