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WorksheetsGenetics Review 02 - Bio 9th
Total questions: 20
Worksheet time: 18mins
Short = S
Short = t
Short = T
Short = tt
In a flowering plant species, red flower color (R) is dominant over white flower color (r). What is the genotype of any white-flowering plant resulting from this species?
rr
rR
RR
Rr
Different versions of a trait (tall or short, white or purple) are called
alleles
traits
versions
genes
Which of the following is considered to be Homozygous Dominant?
AA
Aa
aa
In pea plants, purple is dominant to white. If a plant has a genotype of Pp, what is its phenotype?
purple
white
purple and white
In cows, red and white hair is codominant. If you cross a red cow and a white cow, the offspring would be...
red
white
red and white
pink
In a dihybrid cross, what is the genotype for a plant that is heterozygous for height (T) and homozygous recessive for color (P)
Ttpp
TTPP
TtPp
TtPP
Based on this Punnett Square, what is the chance of getting a female with white eyes?
0%
25%
50%
100%
How many alleles (letters) does a child get from each parent for each trait?
1
2
3
4
Complete a cross between 2 speckled flowers and find the genotype ratio.
The following punnett square depicts the x-linked cross of a female who carries hemophilia with a man showing no symptoms. Fill in the genootype represented by the blank box in the punnett square.
XH XH
Xh XH
XH Y
Xh Y
If purple (P) flowers are dominant to white (p) flowers, then what percentage of the offspring heterozygous purple?
0%
25%
50%
100%
What type of inheritance is determined by multiple genes and there can be a range of traits?
Codominance
Incomplete dominance
Polygenic traits
