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WorksheetsGenetics Review
Total questions: 27
Worksheet time: 14mins
Who is considered the father of genetics?
Charles Darwin
Gregor Mendel
Watson & Crick
Rosalind Franklin
An organism's phenotype describes its
genetic makeup.
physical appearance.
alleles.
pattern of inheritance.
Which of the following options contains only genotypes for homozygous recessive?
aa, gg, pp
Aa, Gg, Pp
AA, gg, PP
AA, GG, PP
Which law states that an organism's phenotype will be the dominant one if both a dominant and recessive allele are present in the genotype?
law of segregation
law of independent assortment
law of dominance
law of heterozygotes
For which pattern of dominance do we typically use two different uppercase letters?
complete
incomplete
codominance
polygenic
Mendel ___________________ the P generation and ___________________ the F1 generation.
cross-pollinated; self-pollinated
self-pollinated; cross-pollinates
cross-pollinated; cross-pollinated
self-pollinated; self-pollinated
When Mendel crossed a purebred purple flower and purebred white flower in his P generation, the F1 generation was
all purple.
all white.
some purple and some white.
mostly purple and a few white.
Punnett squares represent which law?
dominance
segreation
independent assortment
fertilization
What was the third generation in Mendel's experiments called?
P
F1
F2
F3
What is the phenotypic ratio for a dihybrid cross, such as AaBb x AaBb?
1:1:1:1
9:3:3:1
3:1
8:3:3:2
Dihybrid crosses represent which law?
dominance
segregation
independent assortment
recessiveness
Flowers can be red or white. Which pattern of inheritance is this?
incomplete
complete
codominance
multiple alleles
Which pattern did we talk about that has 4 different possible phenotypes?
incomplete
codominance
polygenic
multiple alleles
What is an example of a polygenic trait?
snapdragon flower color
cattle color
blood type
eye color
Which type of inheritance involves more than one dominant allele?
incomplete
codominance
sex-linked
complete
A child has type AB blood. Which of these blood types could either of her parents definitely NOT be?
type A
type B
type AB
type O
What would be the sex chromosomes for a male?
XX
XY
YY
XXY
Which of the following traits is a sex-linked trait?
height
colorblindness
blood type
pea plant seed color
Someone has type A blood. What would be their genotype?
ii
IAIB
IAIA or IAi
IAIB or IAIA
A new breed of pea plants has been discovered! Their seeds can be blue, green, or yellow. What type of inheritance do these new pea plants follow?
complete
incomplete
codominance
multiple alleles
Elephants can be dark gray, light gray, or light gray with dark gray patches. What pattern of inheritance does elephant color follow?
codominance
sex-linked
complete
incomplete
A trait that is much more common in males than females would most likely be a
sex-linked trait.
completely dominant trait.
codominant trait.
incompletely dominant trait.
Almost any of an organism's phenotypes are determined by not only their genotype but also
their number of cells.
their height.
the environment.
their blood type.
What would be the genotype of a female who is a carrier for colorblindness?
XBXB
XbXb
XBXb
XbY
Widow's peak is dominant to straight hairline. What would be the possible genotype(s) of someone who has a Widow's peak?
ww only
WW only
WW or Ww
WW or ww
