16 Questions
What is an allele?
Any of the alternative forms of a gene that may occur at a specific locus
How many alleles do your cells have for each gene?
Two
What does homozygous mean?
Describing two of the same alleles at a specific locus
In genetics, what does heterozygous refer to?
Having different alleles at a specific locus
How many alleles are there in a homozygous individual for a specific gene?
Two
What term describes the allele that is only expressed when two copies are present?
Recessive
Why is an allele considered dominant in a heterozygote?
It is expressed while the recessive allele is not
How are alleles typically represented on paper?
With individual letters
In Mendel's experiments, what type of flowers were observed in the F1 plants?
Purple flowers
How is the genotype for a trait typically represented using letters?
Uppercase letters for both alleles
What is the main focus of the Human Genome Project?
Analyzing the genetic material of organisms
What term is used to describe all of an organism’s genetic material?
Genome
Which term typically refers to the genetic makeup of a specific set of genes?
Genotype
What is expressed when an organism is heterozygous for a trait?
Dominant allele
What do we call the physical characteristics of an individual organism?
Phenotype
If a pea plant has one allele for purple flowers and one for white flowers, what color will the flowers most likely be?
Purple
Explore how genes exist in different forms called alleles, and how they are inherited from parents. Learn about homozygous and heterozygous alleles and their impact on traits.
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