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Rzqust [24]
3 years ago
10

Attached earlobes are a recessive trait in humans. In the tree below, people with attached earlobes are shaded in. Which best de

scribes the person labeled X in the tree?

Biology
1 answer:
Wewaii [24]3 years ago
3 0
The square denotes male. One parent is recessive, so X must have at least one recessive allele. B is the right answer.
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When mendel crossed peas with rr and rr genotypes (where r is dominant and produces wrinkled peas and r is recessive and results
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I think your question all turn into lowercases, uppercases, and lowercases are important in genetics because it can differentiate between the dominant and recessive forms. 
let me explain at least how to calculate the offspring percentage:
for example, you have Rr crossed with another Rr (R for wrinkled peas and r for smooth peas), you just have to match between the four letters, and you will have four possibilities:
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