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WorksheetsPunnett Square Genetics
Total questions: 15
Worksheet time: 2hrs 35mins
Which of the following are GENOTYPES? (select all correct answers)
black hair
homozygous dominant
heterozygous
blue eyes
BB
PHENOTYPE is
the genetic make-up of an organism
the physical trait of an organism
nucleic acid
Aa
Which of the following are PHENOTYPES?
green skin
Aa
homozygous recessive
purple eyes
black fur
Which of the following represents alleles for the homozygous dominant genotype?
Aa
aa
AA
Which of the following represents alleles for the homozygous recessive genotype?
Aa
aa
AA
Which of the following represents alleles for the heterozygous genotype?
Aa
aa
AA
If A = red fur and a = white fur, what color fur would Aa be? (COMPLETE DOMINANCE)
red
white
purple
blue
If A = red fur and a = white fur, what color fur would AA be? (COMPLETE DOMINANCE)
red
white
purple
blue
What is a GENOTYPE?
the genetic make-up of an organism
the physical trait of an organism
mitosis
meiosis
In cattle red coats are represented as RR, and white coats are represented as WW.
What is the genotype for Roan color?
RR
RW
WW
What are the possible genotypes for this cross? And what percentage of each is produced? (if this isn't familiar, re-watch this week's videos!)
TT = 25% Tt= 50% tt=25%
all tall
TT= 75% tt = 25%
Tt = 100%
A heterozygous tall pea plant (Tt) is crossed with a short pea plant (tt).
Perform a punnett square cross and determine the Genotype & %. (if this isn't familiar, re-watch this week's videos!)
100% Tt
50% Tt, 50% tt
75%Tt, 25%tt
25%TT, 50%Tt, 25%tt
