Vocabulary Easy
Dominant means what?
What does homozygous mean? Give 1 example.
same alleles; AA aa
In puppies, brown fur is dominant to black fur. Create a cross using Bb and bb.
What are the percentages of genotypes and phenotypes?
50% Bb and 50% bb
50% brown and 50% black
Inherited characteristics
alleles
A homozygous black cat is mated with a heterozygous white cat. What is the possibility of them having a white cat?
50% chance of having a white cat
A trait is a what?
Characteristic
physical traits of an organism
phenotype
What is a grid that depicts all the combinations and frequencies of genotypes and phenotypes?
Punnett Square
The allele for longer necks in giraffes is dominant to the allele for shorter necks.
What are the phenotypes of the cross between two homozygous parents, one with a long neck and one with a short neck?
100% long necks
What is a Monohybrid Punnett square?
gene that is only expressed in the homozygous state.
Who is Gregor Mendel?
father of genetics; a monk; and he studied pea plants
Write the correct genotypes for the phrase:
A homozygous brown dog is crossed with a heterozygous black dog.
Brown dog: bb
Black dog: Bb
What do we see when we look at a pedigree?
Heredity or traits passing down from generation to generation.
an organisms genetic information in the form of alleles. Example: either AA, aa, Aa
What is a crossing of two individuals resulting in the combination of genetic material?
Genetic crosses
If there is an offspring of 3 white rabbits to 1 brown rabbits, and their genotypes are Ww, WW, ww, what are their parents genotypes?
Ww crossing with a Ww
Describe genetic factors.