Explain why the first offspring had white wool and the second offspring had black wool. You may include a Punnett square in your answer.
Understand the Problem
The question asks for an explanation of why the first offspring of a black sheep and a white sheep had white wool, while the second offspring had black wool. The task may involve using a Punnett square to illustrate the genetic inheritance involved.
Answer
Ww for white wool, ww for black wool; offspring inherit these genotypes.
The first offspring had white wool because it inherited the heterozygous dominant genotype (Ww) from the parents, expressing the dominant white wool trait. The second offspring had black wool because it inherited the homozygous recessive genotype (ww), expressing the recessive black wool trait.
Answer for screen readers
The first offspring had white wool because it inherited the heterozygous dominant genotype (Ww) from the parents, expressing the dominant white wool trait. The second offspring had black wool because it inherited the homozygous recessive genotype (ww), expressing the recessive black wool trait.
More Information
The dominant allele for white wool (W) can mask the presence of the recessive allele for black wool (w) when they are paired (Ww). Genotypically diverse outcomes are typical in genetics due to allele variability.
Tips
A common mistake is failing to understand that the dominant allele masks the recessive one in heterozygous organisms, leading to incorrect phenotype predictions.
Sources
- Two white sheep produce a black offspring. What must the parents ... - quora.com
- NCEA Science 1.9 Genetic Variation AS 90948 - gzscienceclassonline.weebly.com
AI-generated content may contain errors. Please verify critical information
