the polled ( hornless) trait in cattle is dominant, the horned trait is recessive. A rancher has a polled bull and mates it to three cows. Cow A is horned and produces a polled calf. Cow B is horned and produces a horned calf. Cow C is polled and produces a horned calf. What are the genotypes of the four parents and their calves?
Added by Nicole P.
Step 1
The polled trait (P) is dominant, and the horned trait (p) is recessive. Therefore, a polled animal can have the genotype PP or Pp, while a horned animal must have the genotype pp. Show more…
Show all steps
Your feedback will help us improve your experience
Madhur L and 58 other Biology educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Some cattle are naturally hornless, a condition called polling. Polling is dominant over the more common horned trait. A polled bull is mated with three female with the following offspring: Female Cow A = polled calf Female Cow B = horned calf Female Cow C = horned calf What are the genotypes of the 4 parents?
Sri K.
In cattle, genes determine whether an individual will be horned or hornless. The hornless condition is also called "polled". The allele (A) that produces the polled (hornless) condition is dominant over the allele (a) for the horned condition. A certain polled (hornless) bull bred to three cows. With Cow A, which is horned, a polled calf is produced; with Cow B, also horned, a horned calf is produced; and with Cow C, which is polled, a horned calf is produced. Based on this information, fill in the genotypes of all individuals below. Tip: start by putting in the information you know, and then fill the rest in as you look at the genotypes of offspring and parents. Bull: Cow A: calf: Cow B: calf: Cow C: calf:
Supreeta N.
In cattle, the polled condition (H) is dominant to the horned condition (h). A cross between an individual with red coat (R) and white coat (W) results in roan (RW). A polled, red bull is mated to three cows. With cow A, which is horned and white, a polled roan calf is produced. With cow B, which is horned and roan, a horned, red calf is produced. With cow C, which is polled and red, a horned calf is produced. What are the genotypes of all individuals, the bull, cows A, B, and C, and calves A, B, and C? Bull ______________ Cow A ___________ Calf A ____________ Cow B __________ Calf B __________ Cow C __________ Calf C _________
Bryan V.
Recommended Textbooks
Biology for AP Courses
Objective Biology for NEET
Introduction to General, Organic and Biochemistry
Transcript
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD