WorksheetsAlleles, Phenotype and Genotype
Total questions: 40
Worksheet time: 40mins
The two types of alleles are (select two)
dominant
doughnut
expressive
recessive
A segment of DNA that codes for a trait
gene
centromere
chromosome
chromatid
an observable characteristic
trait
personality
cell
DNA
Genetic traits are determined by one or more
genes
organelles
random chances
cells
A version or variation of a gene
trait
gene
allele
DNA
The alleles that an organism has/inherits are its
genotype
phenotype
chromosome
recessive
The observable expression of a trait is its
phenotype
genotype
chromosome
allele
Long strands of DNA are wrapped into
DNA
Chromosome
Alleles
Phenotype
The passing of traits from parents to offspring is known as....
hierarchy
heredity
traits
genetics
What is the definition of Phenotype?
The diagram that shows all the chromosomes of an individual
The combination of alleles that control that an individual has for a particular trait
How many genes on one chromosome
How a trait is expressed (what it looks like or what it does)
Which of the following is the correct definition for a phenotype?
The physical expression of a gene. (Characteristics)
A strand of DNA made up of multiple mutations.
The expression of one of your parents traits.
The set of genes in our DNA which is responsible for a particular trait.
Which of the following is the correct definition for a genotype?
The physical expression of a gene. (Characteristics)
A strand of DNA made up of multiple mutations.
The expression of one of your parents traits.
The set of genes in our DNA which is responsible for a particular trait.
What are the structures in this image called?
chromosomes
centromere
sister chromatids
chromatin
Humans have _______ pairs of chromosomes, for a total of _______ chromosomes.
10, 20
25, 100
23, 46
46, 92
What does the term homozygous mean?
The same allele variation is present.
Different allele variations are present.
Which of the following is Homozygous dominant?
aa
Aa
AA
Which of the following is Homozygous recessive?
Aa
aa
AA
Which of the following represents a Heterozygous genotype?
AA
Aa
aa
What kind of Genotype is this: BB
Homozygous dominant
Homozygous recessive
Heterozygous
What kind of genotype is this: gg
Homozygous dominant
Homozygous recessive
Heterozygous
What kind of genotype is this: Hh
Homozygous dominant
Homozygous recessive
Heterozygous
Free earlobes (F) are dominant to attached earlobes (f).
State phenotype for FF.
free earlobes
attached earlobes
Free earlobes (F) are dominant to attached earlobes (f).
State phenotype for Ff.
free earlobes
attached earlobes
Free earlobes (F) are dominant to attached earlobes (f).
State phenotype for ff.
free earlobes
attached earlobes
No hair on fingers (h) is recessive to hair on fingers (H).
State the phenotype for hh.
Hair on fingers
No hair on fingers
No hair on fingers (h) is recessive to hair on fingers (H).
State the phenotype for HH.
Hair on fingers
No hair on fingers
No hair on fingers (h) is recessive to hair on fingers (H).
State the phenotype for Hh.
Hair on fingers
No hair on fingers
Cleft chin (E) is dominant to smooth chin (e).
State the genotype(s) for cleft chin.
EE only
ee only
Ee only
Both EE and Ee
Cleft chin (E) is dominant to smooth chin (e).
State the genotype(s) for smooth chin.
EE only
ee only
Ee only
Both Ee and ee
