Answer:
The options including the genotypes are not included. On a general note, three genotypes that are possible for this trait including their phenotype is:
WW- Wide wings
Ww- Wide wings
ww- thin wings
Explanation:
This question involves a single gene coding for wings width in a certain bird. The allele for wide wings (W) is dominant over the allele for thin wings (w). This means that allele 'W' will always mask the expression of allele 'w' in a heterozygous state.
There are three possible genotypes considering this trait.
WW- homozygous dominant genotype which wings will be phenotypically wide because it contains a combination of same dominant alleles.
Ww- heterozygous dominant genotype which wings will be phenotypically wide because I this combination of alleles, the W allele will always express itself phenotypically over allele 'w' considering the dominance of W.
ww- homozygous recessive genotype which wings will be phenotype thin because it contains a combination of same recessive alleles.
N.B: a recessive trait will only be expressed in a homozygous condition.
Develop hypothesis. You need something to test, and you need to prove what you think is going to happen, in order for that to happen you need to come up with what you think is going to happen based on your previous experience ect.<span />
1. The hind limbs tend to be sturdier and stronger
2. Hind limbs are more firmly attached to the spine
Answer: =<u>Convergent</u> evolution
Explanation: <u>Convergent</u> evolution occurs when organisms share a trait that originated in an ancestor but changed over time in different populations.