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WorksheetsHeredity Quiz
Total questions: 13
Worksheet time: 12mins
Match the following
Homozygous
Having two identical alleles for a given gene
Heterozygous
Having two different alleles for a given gene
Phenotype
The physical traits of an organism determined by genetic makeup
Genotype
The genetic makeup or set of alleles of an organism
Allele
Alternative form of a gene
Match the following
Found on the X chromosome
X linked trait
Both traits are Dominant
Codominance
Neither trait is completely dominant
Incomplete dominance
Both alleles are Dominant or recessive
Homozygous
One allele is dominant and the other is recessive
Heterozygous
In tomatoes, red fruit (R) is dominant over yellow fruit (r). A plant that is heterozygous for red fruit is crossed with a plant that has yellow fruit. What will be the genotype and phenotype of the offspring?
1 Rr : 1 rr
1 red : 1 yellow
2 Rr : 2 rr
2 red : 2 yellow
1 RR : 2 Rr : 1 rr
3 red : 1 yellow
Not enough information
Oh no! The hospital has made a big mistake and lost track of which baby belongs to each set of parents. Can you help them fix this before they get sued??
Baby 1 : O blood type
Mr. and Mrs. Gene: B and O
Baby 2: AB blood type
Mr. and Mrs. Allele: AB and AB
Baby 3: A blood type
Mr. and Mrs. Dna: O and AB
In humans, the gene for color-blindness is sex-linked (X-linked) and recessive. Cross a female who is a carrier of color-blindness with a normal male. What is the probability they will have a colorblind son?
50%
25%
100%
75%
an organism’s appearance
allele
pollination
trait
genotype
phenotype
An organism that has inherited two of the same alleles of a gene from its parents is _____ for that trait
Hereditary
heterozygous
homozygous
a mutation
the phenotype of the offspring indicated by BOX 3 would be
brown
a mixture of brown and black
black
the phenotype cannot be determined
The genotypic ratio (BB: Bb) of the F1 generation would be
1:1
3:1
1:3
None of the above
