Human Biology (MindTap Course List)
11th Edition
ISBN: 9781305112100
Author: Cecie Starr, Beverly McMillan
Publisher: Cengage Learning
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Chapter 19, Problem 6SQ
Summary Introduction
Introduction: An allele is a variant of a gene. The allele can be dominant or recessive. The dominant allele is the one that will be expressed in the heterozygous condition where two different alleles of the same gene are present. The phenotypic ratio refers to the ratio of the number of organisms in the generation that would express several
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A cross occurs between a chicken with white feathers and a chicken with black feathers. This results with offspring with some black feathers and some white feathers. What type of inheritance is this?
a. incomplete dominance
b. complete dominance
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Based on the allelic gene interaction in Australian milking shorthorn cattle breeds, the mating of a red cattle (RR) and white cattle is depicted in the picture below. What is gene interaction involved in this resulting coat color of the offspring? see photo attached
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d. Additive gene action
You want to cross horses. We will denote the allele for black coat as B and the allele for the brown coat b. You crossed two heterozygous horses and obtain a black horse. What is the probability that this black horse is homozygous dominant (BB)
Chapter 19 Solutions
Human Biology (MindTap Course List)
Ch. 19 - Define the difference between (a) gene and allele,...Ch. 19 - Prob. 2RQCh. 19 - What is probability, and how is it applied in...Ch. 19 - What is independent assortment? Does independent...Ch. 19 - Alleles are ___________. a. alternate forms of a...Ch. 19 - A heterozygote has _____. a. only one of the...Ch. 19 - Prob. 3SQCh. 19 - Offspring of a cross AA aa are ______. a. all AA...Ch. 19 - Prob. 5SQCh. 19 - Prob. 6SQ
Ch. 19 - Which statement best fits the principle of...Ch. 19 - Prob. 8SQCh. 19 - Prob. 9SQCh. 19 - Prob. 10SQCh. 19 - One gene has alleles A and a. Another has alleles...Ch. 19 - Still referring to Problem 1, what will be the...Ch. 19 - Go back to Problem 1, and assume you now study a...Ch. 19 - The young woman shown at right has albinismvery...Ch. 19 - When you decide to breed your Labrador retriever...Ch. 19 - The ABO blood system has been used to settle cases...Ch. 19 - Prob. 7CTCh. 19 - A man is homozygous dominant for ten different...Ch. 19 - Prob. 9CTCh. 19 - Bill and Marie each have flat feet, long...Ch. 19 - You decide to breed a pair of guinea pigs, one...
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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
- Assuming complete dominance, crosses between two dihybrid F1 pea plant, which are offspring from a cross AABBaabb, result in F2 phenotype ratios of ________. a. 1:2:1 b. 3:1 c. 1:1:1:1 d. 9:3:3:1arrow_forwardOne gene that affects three traits is an example of ________. a. dominance c. pleiotropy b. codominance d. epistasisarrow_forwardIf 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_forward
- A cross between homozygous purple-flowered and homozygous white-flowered pea plants results in offspring with purple flowers. This demonstrates Group of answer choices a. dominance. b. true-breeding. c. the mistakes made by Mendel. d. the blending model of genetics. e. a dihybrid cross.arrow_forwardwhen a red and white carnation are crossed, pink carnations result. This is an example of: A. classic dominance B. incomplete dominance C.  co-dominance D.  multiple allelesarrow_forwardA plant that is homozygous for the recessive yellow pod color is crossed with a plant that is heterozygous. Which phenotype will appear MOST in the offspring? A. There will only be plants with green pods. B. There will be more plants with green pods. C. There will be more plants with yellow pods. D. Plants with yellow and green pods will appear in equal numbers.arrow_forward
- In Mendels breeding experiment on garden pea, the offspring of F2 generation are obtained in the ratio of 25% pure yellow pod, 50% hybrid green pods and 25% green pods State (i) which pod colour is dominant (ii) The Phenotypes of the individuals of F1generation. (iii) Workout the cross.arrow_forwardA long-haired cat is crossed to a short-haired cat, both from purebreeding lines. All of the resulting offspring have short hair What types of offspring would result if you crossed one of the offspring to the long-haired parent? Group of answer choices A. all short B. ¼ short ¾ long C. half short and half long D. all long E. ¾ short, ¼ longarrow_forwardBlack fur(B) in guinea pigs is dominant over white fur(b). Find the probability of a white offspring in a cross: Bb x bb.arrow_forward
- Give only typing answer with explanation and conclusion You want to cross horses. We will denote the allele for black coat as B and the allele for the brown coat b. You crossed two heterozygous horses and obtain a black horse. What is the probability that this black horse is homozygous dominant (BB)? Group of answer choices 1/2 0 1 1/3 1/4arrow_forwardA white-flowered plant is crossed with a red-flowered plant and all of the offspring are pink. This is an example of: A) sex-linked inheritance B) the principle of segregation C) incomplete dominance D) linked genes E) codominancearrow_forwardYou have a pure breeding line of tall corn and a purebreeding line of short corn. When you cross them what do you expect the phenotype of the F1 to be? Group of answer choices A. impossible to tell with the information given B. all medium height C. 3/4 tall and 1/4 short D. all short E. all tallarrow_forward
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