Question

a complex trait is a genetic trait whose pattern of inheritance cannot be predicted by mendels law of inheritance. for example, a complex trait does not fit the straightforward single - gene, single - phenotype pattern. using this information, match each phrase to the correct descriptions. drag each item on the left to its matching item on the right. note that every item may not have a match, while some items may have more than one match. complex inheritance mendelian inheritance channel catfish homozygous for the recessive pigmentation gene have white coloration. the three - spined stickleback has a gene that controls the development of skeletal plates and the number of sensory cells in the lateral line. damselfish with the genotype bb have the barred color pattern. fish with the bb genotype lack bars. fish with the bb genotype display incomplete bars. in goldfish, the dominant m gene leads to dark coloration. for goldfish with an mm genotype, the s gene leads to a gold - colored fish, but the ss genotype causes albinism.

Explanation:

Complex inheritance doesn't follow Mendel's laws and isn't a simple single - gene, single - phenotype pattern. Mendelian inheritance follows Mendel's laws. For the channel catfish example, it's a simple single - gene (recessive pigmentation gene) determining a trait, so it's Mendelian inheritance. The three - spined stickleback has a single gene controlling traits, so it's Mendelian inheritance. The damselfish has a simple relationship between genotypes (BB, Bb, bb) and phenotypes, so it's Mendelian inheritance. The goldfish example involves multiple genes (M and S) interacting in a non - simple way, so it's complex inheritance.

Answer:

• Channel catfish: Mendelian inheritance
• Three - spined stickleback: Mendelian inheritance
• Damselfish: Mendelian inheritance
• Goldfish: Complex inheritance