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WorksheetsWC Genetics 2021
Total questions: 25
Worksheet time: 30mins
Which of the following is considered homozygous?
Hh
XH Y
RR
SsHh
Which of the following is considered a phenotype?
XHXH
Blonde hair
Rr
Karyotype
If HH is crossed with hh, what is the probability that the offspring has the genotype HH?
0%
25%
50%
100%
In codominance, a homozygous red flower is crossed with a homozygous white flower. What would their offspring look like?
Red
White
Pink
Red and white
If mother has type B blood (heterozygous) and father has type A blood (heterozygous). What is the probability of having a type O baby?
0 out of 4
1 out of 4
2 out of 4
4 out of 4
(R) is red, (W) is white. In incomplete dominance what would be the probability of getting a red flower if you cross two pink (RW) flowers?
)%
25%
50%
75%
What is the result if you FOIL the following genotype: DdFF
Dd FF DD ff
Df Df DF DF
DF DF dF dF
df df df df
When you are making a punnett square that shows 2 traits it is called
monohybrid
non-mendelian
dihybrid
XX
male
female
XY
male
female
The inheritance of one trait has no effect on the inheritance of another trait.
Principle of Independent Assortment
Homologous pair
Dominant
Heterozygous
Do a punnett square for the following cross: RRyy x RrYy. What are the chances of the offspring being heterozygous for both?
0%
25%
50%
75%
One allele is not completely dominant over the other causing a blend of alleles in a heterozygous condition
codominance
multiple alleles
incomplete dominance
Condition in which both alleles for a gene are expressed when present in a heterozygous condition
Incomplete dominance
Codominance
Multiple Alleles
HH is considered
homozygous recessive
homozygous dominant
heterozygous recessive
heterozygous dominant
Yy is considered
homozygous dominant
homozygous recessive
heterozygous
homozygous
____________ only shown when an organism has two alleles for that gene, represented by lowercase letters
dominant
recessive
allele
gene
Another way to say heterozygous (Hh) is
purebred
hybrid
recessive
dominant
In cats black (B) is dominant to white (b) and long hair (H) is dominant to short hair (h). What would the cross look like between a heterozygous black, short haired cat with a white, short haired cat?
BBHH x bbhh
BbHH x BBHH
Bbhh x bbhh
bbhh x bbhh
Which word would help you remember incomplete dominance?
both
blend
allele
gene
RR
Rr
rr
RW
