WorksheetsGenetics Review - Mrs. Weaver
Total questions: 20
Worksheet time: 10mins
Crossing over during Meiosis creates which of the following?
somatic cells
genetic variation
zygote
fertilization
Which of the following describes polygenic traits?
many genes control one trait
one gene controls many traits
many traits control one gene
one gene controls one trait
Monohybrid crosses show _____ trait while dihybrid crosses compare _____ traits.
two, one
one, one
one, two
two, three
The process of meiosis creates gametes. After fertilization, what types of cells begin to form?
stem cells
skin cells
gametes
somatic cells
What type of inheritance is described below?
Red flowers are crossed with white flowers produce pink flowers.
incomplete dominance
codominance
simple dominance
sex-linked traits
What type of inheritance is described below?
Black chickens crossed with white chickens produces checkered chickens.
incomplete dominance
codominance
simple dominance
sex-linked traits
What type of inheritance is described below?
A man with hemophilia is crossed with a normal woman who is a carrier.
incomplete dominance
codominance
simple dominance
sex-linked traits
What type of inheritance is described below?
Hybrid tall plant is crossed with a short plant.
incomplete dominance
codominance
simple dominance
sex-linked traits
Select ALL correct answers below:
How can the following alleles be described?
XRXr or Ee
homozygous
heterozygous
hybrid
carrier
How is it possible for traits to skip generations?
the trait is dominant
the trait is recessive
the trait is weak
the trait is caused by a random mutation
Which of the following is divided during meiosis?
paternal (both parents) chromosomes
only the mothers chromosomes
only the fathers chromosomes
the offsprings chromosomes
Which of the following are the sex chromosomes for a female?
XX
XY
Which of the following are the sex chromosomes for a male?
XY
XX
Which of the following are sex-linked recessive disorders? (Choose all that apply)
hemophelia
muscular dystrophy
red-green color blindness
trisomy 21
During meiosis chromosomes randomly move to opposite ends of the cells creating genetic variation. There is no specific pattern to which traits are inherited from mom and which are inherited from dad. This is describing which of the following terms?
crossing over
meiosis
independent assortment
mitosis
Why are sex-linked recessive traits more common in males than females?
Males have 2 X chromosomes making it more likely to inherit 2 recessive traits.
Males only have 1 X chromosome making it impossible for them to "cover up" the inherited recessive trait.
Why would a test cross be used?
to identify who the mother is
to identify who the father is
to determine the phenotype of an organism
to determine the genotype of an organism
Which of the following parents would both show the dominant phenotype but still be able to have a baby that is recessive for a trait?
AA x Aa
Aa x aa
AA x aa
Aa x Aa
How are sex-linked traits passed to offspring?
Through both X and Y sex chromosomes
Through X sex chromosomes
Through Y sex chromosomes
New combinations of alleles are created through which of the following processes?
crossing over
incomplete dominance
codominance
mitosis
