Genetics Review Question Preview (ID: 35564)
Cell Division, DNA, Punnett Squares, Genetic Engineering.
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The different forms of a gene (trait) are called ___________.
a) alleles
b) chromosomes
c) phenotypes
d) genotypes
An organism with two identical alleles for a trait is __________.
a) heterozygous
b) homozygous
c) recessive
d) dominant
If the body cells of an organism have 10 chromosomes, then its sex cells (gametes) would have _______.
a) 5 chromosomes
b) 10 chromosomes
c) 15 chromosomes
d) 20 chromosomes
Which of the following do your genes affect?
a) your ability to play soccer
b) how your body grows and looks
c) your ability to ride a bike
d) the function of your circulatory system
Your sister is very good at playing the piano. What is her piano playing ability an example of?
a) a learned behavior
b) an inherited trait
c) a dominant gene
d) a recessive gene
What are recessive genes?
a) strong genes that are in control
b) genes that help you learn new things
c) genes that you only get from your father
d) so-called weaker genes that hide when a dominant gene is present
Which of the following is an inherited trait?
a) using the computer
b) freckles
c) playing video games
d) reading books
The gene from brown eyes is dominant. What is needed in order for a person to have brown eyes?
a) no genes for brown eyes
b) the green eye genes
c) at least one brown eye gene
d) three brown eye genes
What is a learned behavior?
a) something you are taught or learn through experience
b) a feature that you are born with
c) traits and physical features that your parents pass onto you
d) tiny sets of instructions inside every cell in your body
What is true about learned behaviors?
a) they determine which genes are dominant and which genes are recessive
b) they control how tall or short you are
c) they determine what color your hair and eyes are
d) they make it possible for people to keep growing and learning new things
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