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WorksheetsHS Bio Inheritance Quiz
Total questions: 12
Worksheet time: 6mins
Why are observed ratios often different to predicted?
Fertilisation is a random process involving an element of chance
Two recessive traits are required
The genotype does not always match the phenotype
Genes are located in the same place on a chromosome
What term is used to describe a version of a gene?
allele
genotype
phenotype
heterozygous
What term is used to describe an organism that carries two identical alleles for a gene?
dominant
recessive
homozygous
heterozygous
What term is used to describe an organism that carries two different alleles for a gene?
dominant
recessive
homozygous
heterozygous
A plant has two different alleles of a gene, G, resulting in it having a green seed.
Which row of the table describes the phenotype and genotype of the seeds of this plant?
A
B
C
D
The pedigree chart shows the inheritance of a genetic disorder in a family.
What conclusion can be made about this genetic disease?
The genetic disorder is dwarfism
It is caused by a dominant allele
It is caused by a recessive allele
It is caused by codominant alleles
In a certain plant, the allele fo white fruit (W) is dominant over the allele for yellow fruit (w).
A white-fruited plant was crossed with a yellow-fruited plant.
About half of the offspring were white-fruited and the other half were yellow-fruited.
Which genotypes did the parent plants have?
ww and www
Ww and ww
WW and ww
WW and Ww
What are the base pairing rules for DNA?
A always pairs with T, and G with C
A always pairs with C, and G with T
A always pairs with U, and G with C
A always pairs with G, and C with T
Brown eyes (B) is dominant to blue eyes. What is the probability an offspring will have the dominant Brown Eyes in this Punnett Square
25%
50%
75%
100%
Why are males more likely to have colour blindness compared to females?
Females only require one recessive allele
Males only require one recessive allele
Males have two X chromosomes
Females have two Y chromosomes
