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In Biology / Senior High School | 2024-09-09

Please answer this seriously, i’ll mark is as a good answer

Asked by aye633

Answer (1)

Answer:This is a genetics problem about a farmer who wants to find out which bull is the father of his pregnant cows. Here's a breakdown of the problem and how to solve it: The Situation: - Mang Marcelino owns purebred red cows.- A typhoon destroyed the fences separating his cows from his neighbor's.- Three bulls (one from each neighbor) mingled with his cows.- All of his cows are now pregnant.- Mang Marcelino wants to know which bull is the father of the calves. The Genetics: - Red Cows: The cows are purebred red, meaning they have two copies of the dominant red allele (RR).- Bulls: The bulls have different genotypes:- Bull 1: Red (RR)- Bull 2: White (WW)- Bull 3: Roan (RW)- Roan is a mixed color, meaning it has both the red (R) and white (W) alleles. Solving the Problem:1. Possible Traits of the Calves:- Bull 1 (RR) x Cow 1 (RR): All calves will be red (RR).- Bull 2 (WW) x Cow 1 (RR): All calves will be roan (RW).- Bull 3 (RW) x Cow 1 (RR): Half the calves will be red (RR), and half will be roan (RW).2. Punnett Squares: You can use Punnett squares to visually represent these crosses and see the possible genotypes and phenotypes of the offspring.3. Tracing the Father: By observing the color of the calves, Mang Marcelino can deduce which bull is the father: - All red calves: Bull 1 is the father.- All roan calves: Bull 2 is the father.- Half red, half roan calves: Bull 3 is the father. Guide Questions: - Q5: Yes, Mang Marcelino can trace the father of the calves by observing their coat color. The possible phenotypes are red and roan.- Q6: Yes, Mang Marcelino will be happy to know which bull is the father. You can explain it to him using the Punnett squares and the concept of dominant and recessive alleles.- Q7: This knowledge can help improve livestock breeding by allowing farmers to select for desirable traits. For example, if a farmer wants all red calves, they can breed a red bull with a red cow.- Q8: Suggestions for animal breeders:- Use genetic testing to confirm the genotypes of animals.- Keep accurate records of breeding history.- Use selective breeding to improve desired traits. Key Takeaway: This problem demonstrates how basic genetics principles can be applied to real-world scenarios like animal breeding.

Answered by Itzfye | 2024-09-10

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