Genetic Vocabulary
The Passing of traits from parent to offspring.
What is Heredity?
The genetic make-up of a gene. Consists of 2 alleles represented by letters.
What is Genotype?
The organism that Mendel studied.
What is the Pea Plant?
In chickens yellow is dominant over brown. What percentage of yellow chickens would result from a cross between a heterozygous yellow chicken and a brown chicken?
50%
DNA is an abbreviation for..
What is Deoxyribonucleic Acid?
A section on a chromosome that codes for a specific trait. Mendel called these "factors".
What is a gene?
The physical appearance of a trait. We say in genetics that it is "expressed".
What is Phenotype?
Mendel did this to pea plants in order to study the inheritance of different characteristics.
What is Cross Pollinate?
The only possible genotype of offspring resulting from the cross between a homozygous dominant (EE) parent and a homozygous recessive (ee) parent.
What is Ee?
The shape of DNA
What is "double helix" OR "twisted ladder"?
The different "forms" or "variations" of a gene. Each gene has two of these.
What is an Allele?
When both alleles are dominant OR when both alleles are recessive.
What is Homozygous?
The trait that Mendel observed in the first generation (F1) when he crossed two purebred plants.
What is the Dominant Trait?
This person invented the punnet square.
Who is Reginald C. Punnet
These three individuals are given credit for the discovery of DNA.
Who are James Watson, Francis Crick, and Rosalind Franklin.
Characteristics that are passed from parent to offspring through our genes.
What are Traits?
When one allele is dominant and the other allele is recessive.
What is Heterozygous?
The ratio of dominant to recessive traits that Mendel observed in the second generation (F2) when he crossed two hybrid plants.
What is 3:1 Dominant to Recessive OR 75% Dominant to 25% Recessive?
Having dimples is dominant (D). Not having dimples is recessive. (d) Both parents are heterozygous for the dominant trait. What percentage of the children will NOT have dimples?
25%
The process by which DNA makes a copy of itself.
What is Replication
The study of how traits are passed from parent to offspring.
What is Genetics?
Homozygous is to Purebred as Heterozygous is to_____________
Hybrid
Gregor Mendels "profession"
What is a monk who worked in the botanical gardens of the monastery?
Two long eared rabbits produce a litter of 6 baby rabbits. 4 of the baby rabbits have short ears and 2 have long ears. What is the dominant trait?
Long Ears
The building blocks of the DNA molecule.
What are Nucleotides.