WorksheetsGenetics Practice Quiz
Total questions: 20
Worksheet time: 11mins
Genes are made up of how many alleles?
One
Two
Three
Four
What does the genetic cross tell us about the parents' appearance?
Genotype
Phenotype
Allele
Chromosome
What are the eye color possibilities for children if the parents have genotypes Bb and BB, if B=brown & b=blue?
100% Blue Eyes
50% Brown Eyes, 50% Blue Eyes
100% Brown Eyes
75% Brown Eyes, 25% Blue Eyes
In a genetic cross, what does the term "phenotype" refer to?
Genetic makeup
Physical appearance
Chromosome number
DNA sequence
If a pink snapdragon (RW) is crossed with a white snapdragon (WW), what would you expect the flower colors of the offspring to be?
100% Red
100% White
50% Pink, 50% White
25% Red, 75% White
What is the flower color of the offspring when a red snapdragon (RR) is crossed with a white snapdragon (WW)?
100% Red
100% White
100% Pink
50% Red, 50% White
What is the significance of the pink phenotype in snapdragons?
It indicates complete dominance
It indicates a recessive trait
It indicates incomplete dominance
It indicates co-dominance
What does incomplete dominance result in, according to the text?
Intermediate (mixure) phenotype
Dominant phenotype
Recessive phenotype
No phenotype
The passing on of genetic traits from parents to children or offspring.
Nurture
Heredity
Environment
A change in the DNA of an organism is called
new DNA
protein
mutation
nothing
Organisms that have two different alleles are said to be what?
homozygous dominant
homozygous recessive
heterozygous
hybrid
What contains all the different alleles/genes for heredity in a cell?
Punnetts
Vacuoles
Meiosis
Chromosomes
Which of the following is a heterozygous genotype?
HH
rr
Ss
Pink
Which of the following is homozygous recessive?
HH
rr
Ss
Pink
Which of the following is homozygous dominant?
HH
rr
Ss
Pink
What is the percent chance of the offspring being heterozygous
25%
50%
75%
100%
What would be the correct genotype of box 1?
AA
Aa
aa
Heterozygous
What would be the correct genotype of box 3?
AA
aa
Aa
Heterozygous
What is the genotype percent for homozygous dominant, homozygous recessive and heterozygous based on the provided punnett square?
(a)
