(3) At the pet store, you notice that zebrafish (Danio rerio) are sold in severa
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(3) At the pet store, you notice that zebrafish (Danio rerio) are sold in several varieties. You observe that zebrafish have longfins or short fins, and you notice that there are dark-colored bodied and golden-colored bodied varieties. You purchase several of each variety and randomly allow them to breed. You make the following observations: Mating 1: Longfin, Golden male x Longfin, Dark female Offspring: 105 Longfin, Straight Mating 2: Shortfin, dark male x Shortfin, Dark femake Offspring: Shortfin, Dark 25 Shortfin, Golden 29 Longfin, Dark 10 Longfin, Golden 81 Mating 3: Shortfin, Dark male x Longfin, Golden fernale 51Shortfin, Dark 48 Longfin, Dark Offspring: Mating 4: Longfin, Dark male x Shortfin, Golden female Offspring: 38 Shortfin, Dark 41 Shortfin, Golden a) Create a genetic nomenclature for these genes. (1 point)o b) Which alleles are dominant & which alleles are recessive? (2 points) c) What are the most probable genotypes for the parents in each cross? (4 points) -Mating 1: -Mating 2: -Mating 3: - Mating 4:Explanation / Answer
Answer b) dominant allele - dark and short fin
Recessive allele - golden and long fin
C) Mating 1 - DDSS * Ddss
Mating 2 -DdSs * DdSs
Mating 3 - Ddss * ddss
Mating 4- Ddss * ddss
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