Alleles
Alleles for a dominant trait are represented with __________ letters.
Capital
What does a genotype determine?
The phenotype
A population of foxes migrates into a desert region. The number of foxes with a sand-like coat color is most likely to __________.
Increase
Who is an Austrian monk who studied pea plants in the early 1860s, and is currently considered the “Father of Genetics?
Gregor Mendel
__________________ is the study of heredity.
Genetics
Each trait within a pea plant was noted to have __________ different alleles.
Two
What would you expect to see if a purebred dominant mixed with a purebred recessive?
All Hybrid
This refers to more than 2 alleles for a particular gene
multiple alleles
Mendel observed that ______________ pea plants produced genetically identical offspring.
The letters that help visualize a pea plant’s genetic makeup are called its _____________.
Alleles
What term describes the passing of characteristics from one generation to the next
Heredity
What is a genotypic and phenotypic ratio? Give examples
Phenotype- What letters mean, ex. Black fur
Genotype- Letters used to represent the alleles, ex Rr
Does natural selection add or remove genetic information?
Only removes
A Punnett square determines:
How likely an offspring is to have a certain genotype
A _______________ is a trait of a specific character that is expressed in a hybrid organism, and is usually represented by a capital letter.
Dominant Allele/Trait
If one parent contributes an IA allele and the other parent contributes an IB allele, the offspring will have which blood type?
AB
If brown eyes are dominant to blue, describe the phenotypes for the following:
FF
Ff
ff
Brown
Brown
Blue
When people breed animals for specific traits, they are participating in:
Artificial Selection
According to the principle of Segregation, 2 alleles for a trait:
Separate during meiosis
_________________ are inherited traits that help an animal survive to reproduce.
What does the principle of dominance state?
Recessive traits are expressed when the dominant allele is not present; two alleles are needed for the recessive trait to be expressed.
Say the proper terms for the following Genotypes:
Tt
TT
tt
Hybrid; Heterozygous
Purebred: Homozygous Dominant
Purebred: Homozygous Recessive
Natural selection occurs when:
There is variation in the population.
The variation in the population is passed down from one generation to another.
The variation passed makes an organism more likely to survive
Do all traits follow Mendel's principles of heredity? Give examples and define if they do not.
Incomplete Dominance: Both traits are expressed, hybrid offspring blends the parents phenotypes
Codominance: The phenotypes of both parents are expressed but not blended
Crossing red-flowering camellias and white-flowering camellias to produce camellias that are red with white stripes is an example of ___________________.
Incomplete Dominance