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Genetics 1
Genetics 2
Genetics 3
Genetics 4
Genetics 5
100
How many dominant alleles are needed for a particular trait to show up?
1
100
What characteristics was Mendel studying when he crossed the pea plants?
-stem height -color (yellow pea pods and green pea pods)
100

What is the law of independent assortment?

Alleles separate from each other during gamete formation.

100
This is the study of heredity
genetics
100
TT and tt are both examples of a ___________ trait.
purebred/homozygous
200
What is another word for heterozygous?
hybrid
200
What is another word for purebred?
homozygous
200
This occurs when egg and sperm join to make offspring.
fertiization
200
This is an organism's genetic makeup.
Genotype
200
This is an organism's physical appearance.
Phenotype
300
What did Gregor Mendel cross-pollinate in his genetics experiments?
Plants / pea plants
300
An organism with 2 different alleles for a trait is called a ______.
Hybrid/heterozygous
300
This shows all of the possible outcomes of a genetic cross.
Punnett square
300
This type of organism has 2 different alleles for a trait
Heterozygous
300
What happens when a recessive allele is paired up with a dominant allele?
It is hidden / doesn't show up
400
This is a number that describes how likely it is that an event will occur.
Probability
400
This type of organism has 2 dominant alleles for a trait.
Homozygous dominant
400
If a white flower and red flower are crossed, what color would the offspring be?
Pink...due to blending of the traits because of co-dominance in flower colors.
400
This occurs when 2 traits are neither dominant nor recessive, both show up.
co-dominant / codominance
400
This type of organism has 2 recessive alleles for a trait
Homozygous recessive
500
This is the passing of physical characteristics from parent to offspring.
Heredity
500
This was the scientist who first began studying heredity and genetics.
Gregor Mendel
500
Different forms of a gene.
alleles
500

Neither trait is dominant over the other and the two blend together.

Incomplete Dominance

500
Factors that control traits are called.....
Genes