Answer to Question #292441 in Genetics for Smilynne

Question

1. What type of dominance(complete, incomplete, or codominance) best fits the 

Blending hypothesis? What type fits the particulate hypothesis?

2. What is a character (a gene)? What is a trait (an allele)? If I say that information at 

one locus on a chromosome codes for either blue or orange flowers, can you tell 

me what is the gene and what is the allele?

3. What is a genotype? What is a phenotype? If I ask you to write the genotype and 

phenotype for a heterozygous flower from one of Mendel's pea plants, can you do 

it?

4. What do we mean by P, F1, and F2 generations?

5. What do we mean by "true-breeding" or "pure?" What do we mean by "hybrid?" 

What is a monohybrid cross? What is a dihybrid cross?

Answer 1

Incomplete dominance supports the blending hypothesis. The four blood types result from various combinations of the three different ABO alleles. The impact of a single gene on more than one character is called pleiotropy.