Intro to Genetics

Genotype refers to the ...

• physical expression of the genes
• the possible combination of alleles in a gene
• whether an allele is dominant or recessive
• how an organism will appear

An offspring will receive how many alleles from each parent to determine a specific trait?

• one
• two
• three
• five

What is a phenotype

• The genetic make up (code)
• The physical trait

having two of the same genes for the trait (sometimes called purebred).

• homozygous
• hetrozygous
• protein
• chromosome

having two different genes for a trait (sometimes called hybrid).

• protein
• homozygous
• heterozygous
• genotype

G = green, g = yellow
The genotype for a yellow plant is...

• GG
• Gg
• gg
• all of the choices result in yellow

An allele whose trait only shows up when no dominant allele is present.

• hidden allele
• dominant allele
• recessive allele
• present allele

The passing of traits from parent to offspring 

• Heredity 
• Genetics 
• Hybrid 
• Probability 

The study of heredity and the variation of inherited characteristics 

• gene
• genetics 
• meiosis 
• hybrid 

Which is heterozygous ?

• Tt

• TT

• ZZ

• E