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WorksheetsTEST YOURSELF - The Non Mendelian Patterns of Inheritance
Total questions: 20
Worksheet time: 10mins
Assume co-dominance.
Complete the Punnet square for a cross between a homozygous brown horse (BB), and a homologous white horse (WW). Give the ratio for the phenotype and the genotype.
Genotype = 2 BB : 2 WW
Phenotype = 2 brown : 2 white
Genotype = 2 BB : 2 BW
Phenotype = 2 brown : 2 roan
Genotype = 1 BB : 2 BW : 1 WW
Phenotype = 1 brown : 2 roan : 1 white
Genotype = 4 BW
Phenotype = 4 roan
In some aliens, one center horn (A) is co-dominant with two horns (B). If an alien inherits both alleles (AB), then the alien has three horns. A recessive allele (O) results in an alien which has no horns.
Write the genotype and phenotype of each alien.
Genotype = O
Phenotype = no horn
Genotype = A
Phenotype = one center horn
Genotype = B
Phenotype = two horns
Genotype = AB
Phenotype = three horns
In some aliens, one center horn (A) is co-dominant with two horns (B). If an alien inherits both alleles (AB), then the alien has three horns. A recessive allele (O) results in an alien which has no horns.
Write the genotype and phenotype of each alien.
Genotype = O
Phenotype = no horn
Genotype = A
Phenotype = one center horn
Genotype = B
Phenotype = two horns
Genotype = AB
Phenotype = three horns
In some aliens, one center horn (A) is co-dominant with two horns (B). If an alien inherits both alleles (AB), then the alien has three horns. A recessive allele (O) results in an alien which has no horns.
Write the genotype and phenotype of each alien.
Genotype = O
Phenotype = no horn
Genotype = A
Phenotype = one center horn
Genotype = B
Phenotype = two horns
Genotype = AB
Phenotype = three horns
In some aliens, one center horn (A) is co-dominant with two horns (B). If an alien inherits both alleles (AB), then the alien has three horns. A recessive allele (O) results in an alien which has no horns.
Write the genotype and phenotype of each alien.
Genotype = O
Phenotype = no horn
Genotype = A
Phenotype = one center horn
Genotype = B
Phenotype = two horns
Genotype = AB
Phenotype = three horns
What blood type (or types) can be found in an offspring if a mother has type AB blood and the father has homozygous type B blood? Show answer in percentage.
25% AB, 25% A, 50% B
25% AB, 75% B
50% A, 50% B
100% AB
What blood type (or types) can be found in an offspring if a mother has type O blood and the father has heterozygous type B blood? Show answer in percentage.
100% B
25% O, 75% B
50% O, 50% B
100% O
What type of sperm must fertilize an egg to result in a female child?
sperm carrying X chromosome
sperm carrying Y chromosome
Which sex chromosomes determines a person’s sex.
X chromosome
Y chromosome
Which sex chromosome is present in both male and female?
X chromosome
Y chromosome
Problem: A hemophilic female married a normal male. What will be their offspring?
What are the phenotypes of the couple?
Xh Xh x XY
X X x XhY
Xh X x XY
XX x XY
Problem: A hemophilic female married a normal male. What will be their offspring?
What is the phenotype of the offspring?
2 normal female, 2 hemophilic male
2 carrier female, 2 hemophilic male
2 carrier female, 2 normal male
2 normal female, 2 normal male
Problem: A hemophilic female married a normal male. What will be their offspring?
What is the phenotype of the offspring?
50% normal female, 50% hemophilic male
50% normal female, 50% normal male
50% carrier female, 50% normal male
50% carrier female, 50% hemophilic male
_________________ occurs when both alleles are partially dominant.
Incomplete dominance
complete dominance
co-dominance
recessiveness
In _____________, there are no dominant or recessive traits. Both traits appear in the phenotype of an organism at the same time.
Incomplete dominance
complete dominance
co-dominance
recessiveness
Blood type, eye and hair color, and fur type in mammals are examples of traits controlled by more than single pair of alleles called ____________.
Incomplete dominance
complete dominance
co-dominance
law of multiple alleles
In the four blood group (ABO system), this/these allele/s is/are dominant.
A
B
AB
A and B
In the four blood group (ABO system), this/these blood type/s is/are recessive.
A
B
AB
O
Genes linked to the X chromosome that produce disease or certain conditions, are mostly ____________
Y-linked traits
X-linked traits
Co-dominance
Sex-influenced traits
A _____ is a sequence of DNA that codes for a particular trait
gene
nucleotide
nucleus
chromosome
