Genetics Problems 1. In a particular dog, short hair is dominant over long, and

Question

Genetics Problems 1. In a particular dog, short hair is dominant over long, and dark is dominant over light. One dog is heterozygous for hair length and shows the hair color. Another dog is homozygous dominant for hair length and for hair color. Identify the possible phenotypes of the offspring and give the number of each expected. recessive trait for 2. In guinea pigs rough coat "R' is dominant over smooth coat . Black coat "B is dominant over white coat R and B are independent genes. a) Can two black coat parents produce white coat offspring? Can two white coat parents produce black coat offspring? b)Cross a homozygous rough black animal with a smooth white one. What wil be the appearance of the Fi; of the F; of the offspring of a cross of Fi back with the rough black parent; with the smooth white parent? 3. A plant of genotype TTYy was crossed with one of genotype ttYy. If the cross seeds, what number of what phenotypes probably resulted? What were their genotypes?

Explanation / Answer

1. S-short hair; s- long hair

D- dark ; d- light.

Ssdd (short, light hair ) X SSDd

Sd sd x SD Sd

SD. Sd

Sd. SSDd . SSdd

sd. SsDd . Ssdd

SSDd- short hair and dark

SSdd- short hair and light

SsDd- short hair and dark

Ssdd- short hair and light.

Related Questions

Navigate

• Browse (All)
• Browse G
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.