Principles of Biology
2nd Edition
ISBN: 9781259875120
Author: Robert Brooker, Eric P. Widmaier Dr., Linda Graham Dr. Ph.D., Peter Stiling Dr. Ph.D.
Publisher: McGraw-Hill Education
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Chapter 15, Problem 1CBQ
Summary Introduction
To determine:
The
Introduction 
The dihybrid cross is a product of two monohybrid crosses that occurs between two characters of two organisms. This test follows the law of independent assortment of inheritance.
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Honey Bees are unusual in that male bees (drones) have only one copy of each gene, while female bees have two copies of each gene. That is because drones develop from eggs that have not been fertilised by sperm cels. In bees, the trait of long wings is dominant over short wings, and the trait of black eyes is dominant over white eyes. If a drone with short wings and black eyes was mated to a queen bee that is heterozygous for both genes, what are the predicted genotypes and phenotypes of male and female offspring. What are the phenotypic ratios if we assume an equal number of male and female offspring?
Honeybees are unusual in that male bees (drones) have only onecopy of each gene, but female bees have two copies of their genes.This difference arises because drones develop from eggs that havenot been fertilized by sperm cells. In bees, the trait of long wingsis dominant over short wings, and the trait of black eyes is dominant over white eyes. If a drone with short wings and black eyeswas mated to a queen bee that is heterozygous for both genes, what are the predicted genotypes and phenotypes of male and femaleoffspring? What are the phenotypic ratios if we assume an equalnumber of male and female offspring?
In fruit flies, long wings are dominant and vestigial wings are recessive. If a long-winged fruit fly that is heterozygous mates with a fruit fly that has vestigial wings, which percentage of their offspring will have vestigial wings?. Single choice.
Chapter 15 Solutions
Principles of Biology
Ch. 15.1 - Prob. 1CCCh. 15.1 - Why are the stamens removed from the purple...Ch. 15.1 - Prob. 3CCCh. 15.1 - Prob. 4CCCh. 15.1 - Prob. 5CCCh. 15.1 - Prob. 1TYKCh. 15.1 - Prob. 2TYKCh. 15.2 - Prob. 1BCCh. 15.2 - Prob. 2BCCh. 15.2 - Lets suppose that a cell is heterozygous for three...
Ch. 15.2 - Prob. 1TYKCh. 15.2 - Which phase of cellular division explains Mendel*s...Ch. 15.3 - Prob. 1CCCh. 15.3 - Prob. 2CCCh. 15.3 - Prob. 1TYKCh. 15.4 - Prob. 1CCCh. 15.4 - In pea plants, P is a dominant allele that confers...Ch. 15.4 - The effects of a gene may be pleiotropic because...Ch. 15.5 - Prob. 1CCCh. 15.5 - Prob. 1TYKCh. 15.5 - Prob. 2TYKCh. 15 - Experimental advantages of using pea plants...Ch. 15 - Which of the following phenomena cannot be deduced...Ch. 15 - Prob. 3TYCh. 15 - Prob. 4TYCh. 15 - Prob. 5TYCh. 15 - Prob. 6TYCh. 15 - Prob. 7TYCh. 15 - Prob. 8TYCh. 15 - A hypothetical flowering plant species produces...Ch. 15 - Prob. 10TYCh. 15 - Describe the difference between genotype and...Ch. 15 - When examining a human pedigree, what patterns do...Ch. 15 - Prob. 3CCQCh. 15 - Prob. 1CBQCh. 15 - Prob. 2CBQ
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- In chickens, it is the females that have two different sex chromosomes (Z and W) while the males have two Z chromosomes. A Z-linked gene controls the pattern of the feathers with the dominant B allele causing the barred pattern and the b allele causing non-barred feathers. You cross a barred female with a non-barred male. What do you expect for the phenotype of the progeny? Group of answer choices barred daughters and sons barred sons, unbarred daughters barred daughters, unbarred sons unbarred daughters and sonsarrow_forwardIn humans, brown eyes are dominant to blue eyes, and the ability to roll your tongue is dominant to not being able to roll your tongue. If a mother who was heterozygous for eye colour and homozygous recessive for tongue rolling had a baby with a father that was heterozygous for both traits, what is the probability that their child would have blue eyes and could roll their tongue?arrow_forwardIf you crossed a heterozygous fruit fly with straight wings and red eyes to one with curly wings/white eyes, what is the phenotypic ratio of their offspring?arrow_forward
- If black and white true-breeding mice are mated and the result is all gray offspring, what inheritance pattern would this be indicative of? a. dominance b. codominance c. multiple alleles d. incomplete dominancearrow_forwardA walnut comb rooster is mated to three hens. Hen A, which has a walnut comb, has offspring in the ratio of 3 walnut to 1 rose. Hen B, which has a pea comb, has offspring in the ratio of 3 walnut to 3 pea to 1 rose to 1 single. Hen C, which has a walnut comb, has only walnut comb offspring. What are the genotypes of the rooster and the three hens?arrow_forwardYou have a true-breeding strain of miniature-winged fruit flies, where this wing trait is recessive to the normal long wings. How would you show whether the miniature wing trait is sex-linked or autosomal?arrow_forward
- In flies, small wings are recessive to normal wings. If a cross between two flies produces 8 small-wing offspring and 28 normal-wing offspring, what are the most likely genotypes of the parents? (Use SS to represent the normal-wing allele and ss to represent the short-wing allele.)arrow_forwardGenetics, Mating took place between males and females of a fruit fly, and individuals appeared With the following proportions and attributes: 25% Female flies with irregular wings and 25% female flies with irregular wings 25% male flies with irregular wings and 25% male flies with irregular wings . . If a symbol for the adjective of regular wings is symbolized by the symbol B and if a symbol for irregular wings with the symbol b, The genotypes of the parents are? 1. bB, Bb 2. bb,Bb 3. XB Y, Xb Xb 4. XbY, XBXbarrow_forwardIn four-o'-clock plants, the allele for red flowers is incompletely dominant to the allele for white flowers, so heterozygotes have pink flowers. What ratios of flower colors would you expect among the offspring of white flower plants X pink flower plants.arrow_forward
- In a population of North American rabbits, brown fur color is dominant to white fur color. If two heterozygote rabbits mate, what is the chance of having a white furred bunny?arrow_forwardIn a bird, codominance is seen in feather color. If a red bird is mated with red and white, what is the probability of having a red and white bird? Show the cross.arrow_forwardMating took place between males and females of a fruit fly, and individuals appeared With the following proportions and attributes: 25% Female flies with irregular wings and 25% female flies with irregular wings 25% male flies with irregular wings and 25% male flies with irregular wings . . If a symbol for the adjective of regular wings is symbolized by the symbol B and if a symbol for irregular wings with the symbol b, The genotypes of the parents are? 1. bB, Bb 2. bb,Bb 3. XB Y, Xb Xb 4. XbY, XBXbarrow_forward
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