WorksheetsGenetics Vocab & Intro to Punnett Squares
Total questions: 20
Worksheet time: 27mins
What is a GENOTYPE?
the genetic make-up of an organism
the physical trait of an organism
mitosis
meiosis
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
The prefix "hetero" means
different
ugly
fancy
same
Which of the following represents alleles for the homozygous dominant 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?
red
white
purple
blue
If A = red fur and a = white fur, what are the PHENOTYPIC ratios of the offspring based on the Punnett Square?
25% heterozygous
50% purple
75% red fur and 25% white fur
25% homozygous recessive, 50% heterozygous, 25% homozygous dominant
If A = green pods and a = yellow pods, what are the GENOTYPIC RATIOS of the offspring in the Punnett square?
100% green pods
100% yellow pods
100% heterozygous
100% homozygous dominant
If A = green pods and a = yellow pods, what are the PHENOTYPIC RATIOS of the offspring of a cross between two homozygous recessive parents? (Hint: Make a Punnet Square)
100% green pods
100% yellow pods
100% heterozygous
100% homozygous dominant
If A = green pods and a = yellow pods, what are the PHENOTYPIC RATIOS of the offspring of a cross between a homozygous dominant parent and heterozygous parent? (Hint: Make a Punnet Square)
100% green pods
100% yellow pods
100% heterozygous
100% homozygous dominant
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
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%
