Genetics

A heterozygous yellow pea plant's genotype would be:

• YY
• yy
• Yy
• Yg

If green is dominant over purple, then what is the genotype for this individual?

• Purple
• Green
• GG
• gg

A corn plant heterozygous for tall sprouts mates with a corn plant with short sprouts. If tall sprouts are dominant, how many different phenotypes are possible in the offspring?

• 1
• 2
• 3
• 4

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

Brown fur color is dominant over black fur color. Which of the following is the actual genotype of ALL of the offspring in the next generation of this cross for fur color?
AA x aa

• AA
• Aa
• aa
• brown fur

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

• one
• two
• three
• five

If T=Tall & t=short, what is the genotypic ratio?

• 1:3
• 3:1
• 1:2:1
• 2:2

Term for an organism that display two dominant phenotypes at the same time

• codominance
• incomplete dominance
• multiple alleles
• linked genes

Which is the correct phenotype for this organism?

• BB
• blue
• green
• bb

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