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100
How many dominant alleles are needed for a particular trait to show up?
1
100

What are the genotypes of offspring with parents Hh, hh? 

2 x Hh, 2 x hh

100

The spiral shape of DNA is called the double:

Helix


100
This is the study of heredity
genetics
100

How many recessive alleles are needed for the phenotype to be shown?

2

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
These are proteins that act as biological catalysts

Enzymes

300

Define the term allele

A different form of a gene

300

These are the names of the 4 base pairs of all DNA strands

Adenine, Cytosine, Guanine, Thymine

300

This occurs when 2 traits are neither dominant nor recessive, both show up.

Codominance / Codominant

300

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

Incomplete dominance

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

I, Charles Darwin, wrote a theory describing how the fittest organisms survive longer

Natural Selection

400

The ultimate source of new genetics material is a...

DNA Mutation

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

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500

If normal hair growth on guinea pigs is the dominant trait and a cross between two guinea pigs resulted in some being hairless... Show how hairless offspring happened and what are the phenotypic/genotypic rations.

Genotypic.. 1:2:1

Phenotypic.. 3:1

500

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