WorksheetsUnit 6 Review
Total questions: 25
Worksheet time: 13mins
_________ is the passing of traits from parents to offspring.
taxonomy
heredity
genetics
metabolism
Who discovered the rules of inheritance by studying pea plants? He is known as the Father of Genetics.
Charles Darwin
James Watson
Erwin Chargaff
Gregor Mendel
Phenotype refers to the...
physical observable trait
underlying genetic makeup
What is the term for the set of alleles an individual has?
genotype
phenotype
heredity
inheritance
What is the term for alternate forms of a gene.
alleles
traits
phenotypes
chromosomes
Which of the following genotypes is heterozygous?
BB
Bb
bb
all of these are heterozygous
Tallness (T) is dominant to shortness (t) in pea plants. Which of the following shows the genotype of a short plant?
TT
Tt
tt
t
Purple (P) is dominant to white (p) in particular variety of flower. Which of the following shows the genotype of a purple flower?
PP
Pp
pp
PP and Pp
Look at the punnett square. What belongs in the missing box?
SS
Ss
ss
need more information
A woman is heterozygous for freckles. What possible alleles could she pass onto her offspring in her gametes?
H only
h only
H or h
Imagine a cross between parents with the following genotypes: TT x tt. What percentage of their offspring will be heterozygous?
0%
25%
50%
100%
Harry is a carrier for sickle cell anemia. What is his genotype?
AA
Aa
aa
need more information
What mode of inheritance is displayed by the flower shown?
incomplete dominance
codominance
multiple alleles
polygenic
Which pattern of inheritance displays a blend of the dominant and recessive trait in the heterozygous condition?
incomplete dominance
codominance
multiple alleles
polygenic
Traits that display a continuous range of phenotypes, such as height and skin color in humans, follow which pattern of inheritance?
incomplete dominance
codominance
multiple alleles
polygenic
In a certain species of housecat, there are five distinct phenotypes for fur color. Given this information, which pattern of inheritance does fur color follow?
incomplete dominance
codominance
multiple alleles
polygenic
X-linked recessive traits are more common in biological ____________.
males
females
The pedigree shown tracks an autosomal recessive trait. What are the genotypes of the parents?
AA
Aa
aa
need more information
The pedigree shown tracks an autosomal recessive trait. What is the genotype of the affected individual?
AA
Aa
aa
need more information
A typical human cell has ________ pairs of chromosomes.
12
23
46
80
Which chromosomal abnormality describes the state of having a single copy of a chromosome instead of a chromosome pair?
aneuploidy
monosomy
trisomy
deletion
Down's Syndrome is an example of a ______________.
deletion
inversion
monosomy
trisomy
__________ chromosomes, contain the same genes in the same order, but have different information, depending on the parent they were inherited from.
similar
homologous
genetic
hereditary
Which of the following terms refers to a failure of chromosomes to properly separate during meiosis?
sister chromatids
chromatin
nondisjunction
deletion
For the monohybrid cross shown, what is the phenotypic ratio?
1:3:1
2:2
9:3:3:1
need more information
