In hogs, a dominant allele b results in a white belt around the body. at a separate locus the dominant allele s causes fusion of the two parts of the normally cloven hoof resulting in a condition known as syndactyly. a belted syndactylous sow was crossed to an unbelted cloven-hoofed boar, and in the litter there were: 25% belted syndactylous, 25% belted cloven, 25% unbelted syndactylous, 25% unbelted cloven. the genotypes of the parents can best be represented as:
a. b/b; s/s × b/b; s/s
b. b/b; s/s × b/b; s/s
c. b/b; s/s × b/b; s/s
d. b/b; s/s × b/b; s/s
e. b/b; s/s × b/b; s/s

e. B/b,S/s x b/b;s/s

Explanation:

Here, there is a dihybrid cross between two loci: B (for a white belt around the body) and S (for syndactyly). For each locus, genotypes and phenotypes should be:

- B/B or B/b: Belted hog

- b/b: wild type or unbelted.

- S/S or S/s: syndactylous hog.

- s/s: wild type or cloven-hoofed hog.

So,  if a belted syndactylous sow was crossed with an unbelted cloven-hoofed boar, there are different possible gentotypes for the first animal:

Belted syndactylous sow: B/b;S/s, B/B;S/S, B/b;S/S or B/B;S/s.

Unbelted hoofed boar: b/b;s/s (because the wild type phenotype is recessive).

Progeny has the following phenotypes frequencies:

25% belted syndactylous

25% belted cloven

25% unbelted syndactylous

25% unbelted cloven

"Unbelted" and "cloven" are recessive conditions, therefore, both parents must have recessive alleles to inherit them to their progeny. For this reason, the most probable answer is "e. B/b;S/s x b/b;s/s". However, in the image, there is the Punnett Square that confirms this answer.

1.the evidene of the reaction

2.yes

3.yes

a motor homunculus represents a map of brain areas dedicated to motor processing for different anatomical divisions of the body.

homunculus represents the importance of various parts of your body as seen by your brain. as a result, they take up a lot of brain space. although the cortical homunculus is a curiosity, penfield's work in mapping the brain's relationship to the body was invaluable.