Review Game Zone
Flash Cards
(current)
Games
Teachers
Search
Genetics Review
Test Description: Review of Punnett Squares, Pedigrees, Genetics Disorders, and Vocabulary Terms
Instructions: Answer all questions to get your test result.
1) When sex cells combine to produce offspring, each sex cell will contribute
A
the normal number of chromosomes
B
one fourth the number of chromosomes
C
half the number of chromosomes
2) An allele in which a trait always shows up when the allele is present is called
A
recessive
B
codominant
C
dominant
D
incomplete dominance
3) Chromosomes are made up of
A
RNA
B
many traits joined together
C
cells
D
many genes joined together
4) What does the notation Bb mean to geneticists?
A
one dominant and one recessive allele
B
homozygous alleles
C
two dominant alleles
D
two recessive alleles
5) An organism's physical appearance is its
A
homozygous
B
genotype
C
phenotype
D
heterozygous
6) What is a mutation?
A
any change in a gene or a chromosome
B
any change that is harmful to an organism
C
any change that is helpful to an organism
7) Why are sex-linked traits more common in males than in females?
A
All alleles on the Y chromosome are recessive
B
All alleles on the X chromosome are dominant
C
A recessive allele on the X chromosome will always produce the trait in a male
8) A purebred chicken with white feathers is crossed with purebred chicken that has black feathers. Each of their offspring have both black and white feathers. Why does this happen?
A
The alleles are both dominant
B
The alleles are an example of incomplete dominance
C
The alleles are both recessive
D
Several alleles work together to determine the trait
9) Genetic disorders are caused by
A
DNA mutations or changes in chromosomes
B
pedigrees
C
dominant alleles only
D
recessive alleles only
10) A carrier is a person who has
A
two unknown alleles
B
one dominant allele and one recessive allele for a trait
C
two dominant alleles for a trait
D
two recessive alleles
11) An organism with two identical alleles for a trait is called a(n)
A
heterozygous
B
purebred
C
hybrid
D
phenotype
12) Which combination of sex chromosomes results in a male human being?
A
XY
B
either XX or YY
C
XX
D
YY
13) What is a pedigree?
A
a geneticist who studies the inheritance of traits in humans
B
a picture of all the chromosomes within a cell
C
a chart that tracks which members of a family have a particular trait
D
A tool used to show genotypes and phenotypes of future offspring
14) Factors that control traits are called
A
genes
B
hybrid
C
purebred
D
alleles
15) The passing of physical characteristics from parents to offspring is known as
A
genes
B
chromosomes
C
heredity
D
genetics
16) An organism's genotype is its
A
feather color
B
genetic makeup
C
physical appearance
D
trait
17) Many characteristics are affected by interactions between genes and
A
carriers
B
alleles
C
pedigrees
D
the environment
18) A mutation can be...
A
Helpful
B
Harmful
C
Neutral
D
All of the above
*select an answer for all questions
Check Results & Get Answers
Play Games with the Questions Above
Teachers: Create FREE classroom games with your questions
Click for more info!
©2007-2024
ReviewGameZone.com
|
About
|
Privacy
|
Contact
|
Terms
|
Site Map
WAIT! Find what you needed?
×
Still Looking for the Answers?
Have Another Question?
Play a Review Game with These Questions?
Want to Make Your Own Test Like This One?