WorksheetsBiology Intro to Genetics
Total questions: 15
Worksheet time: 15mins
The different FORMS of a gene:
Alleles
Gene
Purebred
Hybrid
Physical characteristics of organisms:
Trait
Gene
Allele
Probability
An organism's physical appearance or visible traits:
Genotype
Phenotype
Having two identical (same) alleles for a trait.
Homozygous
Heterozygous
Having two different alleles for a trait.
Homozygous
Heterozygous
When the phenotype of the two alleles blend.
Codominance
Incomplete Dominance
Dominant allele
Recessive allele
Inherited traits that are determined by more than one gene.
Codominance
Incomplete Dominance
Polygenic Traits
All are incorrect
What are the letters that are the pair of alleles of an organism's genes called?
Phenotype
Genotype
Alleles
This is another word for the physical traits being observed. They are determined by the Genotype.
Traits
Inherit
Genotype
Phenotype
What does DNA stand for?
Don't Nap Alexander
De-ribonucleic Acid
Deoxyribonucleic Acid
Deoxynucleic Acid
Biologists have determined that you get one _____ each from your mother and father.
allele
trait
gene
This is what?
DNA
Traits
Genes
What is the basic unit of heredity that is passed from parents to offspring?
Gene
Chromosome
DNA
Protein
Which of the following best describes a genotype?
The physical appearance of an organism
The genetic makeup of an organism
The environment in which an organism lives
The diet of an organism
In a monohybrid cross, what is the expected phenotypic ratio of the offspring if both parents are heterozygous for a trait?
1:1
3:1
9:3:3:1
1:2:1
