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WorksheetsGenetics Review
Total questions: 20
Worksheet time: 13mins
Who is the Father of Genetics?
Robert Hooke
Gregor Mendel
Albert Einsten
Albert Wegener
What is the study of how traits are passed from parents to offspring?
biology
botany
molecular biology
genetics
What is the genetic makeup of an organism?
genotype
phenotype
gene type
comparative alleles
What are the different variations of a gene ?
mutation
genotype
phenotype
allele
What is the physical expression of a trait?
genotype
mutation
genetic disorder
phenotype
What does heterozygous mean?
the different forms of a trait (red hair, brown hair, etc)
when an organism has two of the same alleles for a trait (ex. RR)
when an organism has two different alleles for a trait (ex.Tt)
neither gene is dominant over the other and a blend of both traits appear in the offspring
What is the name of this diagram?
Inheritance square
Genotype 4 square
Pedigree
Punnett Square
What does homozygous mean?
when an offpsring has 2 of the same alleles for a trait
when an offspring has 2 different allels for a trait
when the offspring only has 1 allele for a trait
when the offspring has 2 alleles for a trait
What are the letters Ss and example of ?
homozygous genes
domianant genes
heterozygous genes
recessive genes
What do the letters nn represent?
recessive genes
dominant genes
heterzygous genes
homozygous genes
What goes in the missing square?
AA
aa
A
a
A homozygous dominant chicken with black fur is crossed with a heterozygous chicken with black fur. What are the percentages of the possible genotypes?
50% BB and 50% Bb
25% BB and 75%Bb
75% BB and 25% Bb
100% BB
Long tails in monkeys (L) is dominant to short tails (l). What are the percentages of genotypes if you cross a homozygous dominant monkey with a homozygous recessive monkey.
50% LL 50% ll
50% LL and 50% Ll
75% LL and 25% Ll
100% Ll
How many alleles does an offspring inherit from each parent for every trait?
1
2
3
4
What controls genetic traits?
chromosomes
Punnett Squares
Pedigrees
genes
When an offspring has the recessive form of a trait, what does that mean about the parents?
Both parents must have 2 dominant alleles
one of the parents has 2 dominant alleles and the other parent has 2 recessive alleles
one parent has 2 recessive alleles and the other parent 1 dominant and 1 recessive allele
recessive traits never show up
Which of the following is NOT an example of a genotype?
RR
Rr
rr
long
Having 2 of the same type of allele is also called __________.
purebred
homologous
heterzygous
hybrid
What is a section of DNA called?
phenotype
gene
chromosome
mutation
Which genotype should go in space #3?
DD
dd
dD
Dd
