Genetics Vocab
What does genetics mean?
The scientific study of heredity
What is the part of DNA that control a trait?
Gene
What does a punnet square predict?
The possibility of a child's given trait
What is genotype?
The letter code for a trait
What genotype would a homozygous dominant offspring have? (Use a as your variable)
AA
What is a heterozygous?
An organism that has two different alleles for a trait
What is a different form of a gene:like AA or aa?
Genotype
What does the letters in Punnett squares show?
A child's possible genotype
The physical trait
In science what do you call a chart or family tree?
Pedigee
What is the molecule that carries all genetic information?
DNA
What is having the genotype Aa called?
Heterozygous
What is a homozygous dominant genotype?
AA
What letters stand for homozygous recessive?
aa
What is selective breeding?
Selecting a few organisms with desired traits to serve as parents
What is DNA made up of?
Chromesomes and Genes
What ratio does the cross of two heterozygotes give?
Is Brown hair a genotype or phenotype?
Phenotype
If a plant has genotype tt, is it homozygous or heterozygous?
homozygous
what is an organisms chromosome also known as?
Genome
What is the complete set of DNA information?
Genome
Who originated the Punnett square?
Reginald Punnett
What is the phenotype of an heterozygous offspring? If (A) is Brown hair while (a) is blonde.
Brown hair
If a plant has one dominant allele and one recessive allele for flower color, is it homozygous or heterozygous?
heterozygous