WorksheetsMendelian Genetics and Punnet Squares
Total questions: 24
Worksheet time: 8mins
Which of the following is the homozygous recessive genotype?
rr
AA
TT
Ff
Which of the following is the homozygous dominant genotype?
Jj
Rr
MM
ee
The physical appearance of a trait is known as the:
genotype
phenotype
Homozygous
intelligence
Mary's genotype is heterozygous for head shape. If (R) is for Round head, and (r) is for Egg head, what is Mary's genotype?
RR
Rr
rr
rR
What is the probability of heterozygous offspring in this cross?
1/4 or 25%
2/4 or 50%
0/4 or 0%
4/4 or 100%
In plants, tall (T) is dominant to short (t).
Draw a punnett square and perform the following cross: Tt x Tt
What is the probability of producing a short plant?
0%
25%
50%
75%
Phenotype determines genotype
True
False
What genotype would go in box 2? And is it Homozygous or Heterozygous?
BB Heterozygous
Bb Heterozygous
bb Homozygous
Bb Homozygous
Both parents in this Punnet square
are homozygous dominant
are homozygous recessive
are heterozygous
have blue eyes
To be a yellow the seed's genotype must be
aa
Aa
AA
AA or Aa
How do two plants with purple flowers produce offspring with white flowers?
They cant have white flowered offspring
Both parental flowers are heterozygous and can pass on the white allele
They are both homozygous dominant
They do not have the recessive allele in their genotype
To express the recessive trait you must be
homozygous dominant
heterozygous
homozygous recessive
Heterozygous means
having two identical alleles for a particular trait
having two different alleles for the same trait
the physical characteristics of an organism; shows the dominate trait
the set of genes in our DNA which is responsible for a particular trait
Homozygous means
having two identical alleles for a particular trait
having two different alleles for the same trait
the physical characteristics of an organism; shows the dominate trait
the set of genes in our DNA which is responsible for a particular trait
Genotype means
having two identical alleles for a particular trait
having two different alleles for the same trait
the physical characteristics of an organism; shows the dominate trait
the set of alleles which is responsible for a particular trait
Gregor Mendel is known as the ______________________.
Father of Modern Medicine
Father of the Green Revolution
Father of Genetics
Pea Plant Man
What organism did Gregor Mendel use to discover the principles that rule heredity?
Pea Plant
Pigeons
Pear trees
Photosynthesis
Mendel was able to infer how genes were passed down from parents to offspring. He did it by:
using mathematics
using microscopes
guessing
praying at the monastery
Phenotype means
having two identical alleles for a particular trait
having two different alleles for the same trait
the physical characteristics of an organism; shows the dominate trait
the set of alleles which is responsible for a particular trait
