Question

use the information for woodys traits below to write the phenotype (physical appearance) for each item.
trait | dominant gene | recessive gene
eye color | brown (b) | blue (b)
hair color | brown (h) | blonde (h)
mouth shape | thick (m) | thin (m)
nose shape (rye shape typo) | round (e) | oval (e)
left side shows genotypes: bb, hh, mm, ee, hh, mm, ee, etc., with vertical bars and allele diagrams

Explanation:

To determine the phenotype for each trait, we use the dominant and recessive alleles:

1. Trait: Droll

• Dominant allele: Dominant Gene (implies dominant phenotype, but since no specific dominant trait name is given for droll, we assume the dominant allele corresponds to the dominant phenotype. Wait, actually, the table has "Dominant Gene" and "Recessive Gene" columns. Let's re-express:

For each trait, the dominant allele (uppercase) determines the dominant phenotype, recessive (lowercase) the recessive.

Trait: Eye Color

• Allele: \( \text{bb} \) (recessive, since dominant is \( \text{B} \) for brown, recessive \( \text{b} \) for blue). So phenotype: Blue.

Trait: Hair Color

• Allele: \( \text{Hh} \) (dominant \( \text{H} \) for brown, recessive \( \text{h} \) for blonde). Dominant allele present, so phenotype: Brown.

Trait: Mouth Shape

• Allele: \( \text{Mm} \) (dominant \( \text{M} \) for thick, recessive \( \text{m} \) for thin). Dominant allele present, so phenotype: Thick.

Trait: Nose Shape

• Allele: \( \text{ee} \) (recessive \( \text{e} \) for oval, dominant \( \text{E} \) for round? Wait, the table shows "Nose Shape" with dominant (round, \( \text{E} \)) and recessive (oval, \( \text{e} \)). Allele \( \text{ee} \) is recessive, so phenotype: Oval.

(Note: The original problem’s table and allele labels need clearer alignment, but using dominant-recessive rules: dominant allele (uppercase) expresses dominant phenotype, recessive (lowercase homozygous) expresses recessive. For heterozygous (\( \text{Hh}, \text{Mm} \)), dominant phenotype is expressed.)

Final Phenotypes (example for alleles shown):

• \( \text{bb} \) (Eye Color): Blue
• \( \text{Hh} \) (Hair Color): Brown
• \( \text{Mm} \) (Mouth Shape): Thick
• \( \text{ee} \) (Nose Shape): Oval

(Adjust based on exact allele-trait mapping from the table. The key is dominant allele → dominant phenotype, recessive homozygous → recessive phenotype, heterozygous → dominant phenotype.)

Answer:

To determine the phenotype for each trait, we use the dominant and recessive alleles:

1. Trait: Droll

• Dominant allele: Dominant Gene (implies dominant phenotype, but since no specific dominant trait name is given for droll, we assume the dominant allele corresponds to the dominant phenotype. Wait, actually, the table has "Dominant Gene" and "Recessive Gene" columns. Let's re-express:

For each trait, the dominant allele (uppercase) determines the dominant phenotype, recessive (lowercase) the recessive.

Trait: Eye Color

• Allele: \( \text{bb} \) (recessive, since dominant is \( \text{B} \) for brown, recessive \( \text{b} \) for blue). So phenotype: Blue.

Trait: Hair Color

• Allele: \( \text{Hh} \) (dominant \( \text{H} \) for brown, recessive \( \text{h} \) for blonde). Dominant allele present, so phenotype: Brown.

Trait: Mouth Shape

• Allele: \( \text{Mm} \) (dominant \( \text{M} \) for thick, recessive \( \text{m} \) for thin). Dominant allele present, so phenotype: Thick.

Trait: Nose Shape

• Allele: \( \text{ee} \) (recessive \( \text{e} \) for oval, dominant \( \text{E} \) for round? Wait, the table shows "Nose Shape" with dominant (round, \( \text{E} \)) and recessive (oval, \( \text{e} \)). Allele \( \text{ee} \) is recessive, so phenotype: Oval.

(Note: The original problem’s table and allele labels need clearer alignment, but using dominant-recessive rules: dominant allele (uppercase) expresses dominant phenotype, recessive (lowercase homozygous) expresses recessive. For heterozygous (\( \text{Hh}, \text{Mm} \)), dominant phenotype is expressed.)

Final Phenotypes (example for alleles shown):

• \( \text{bb} \) (Eye Color): Blue
• \( \text{Hh} \) (Hair Color): Brown
• \( \text{Mm} \) (Mouth Shape): Thick
• \( \text{ee} \) (Nose Shape): Oval

(Adjust based on exact allele-trait mapping from the table. The key is dominant allele → dominant phenotype, recessive homozygous → recessive phenotype, heterozygous → dominant phenotype.)