### Educational Exercise: Genetics of Beetle Phenotypes#### Problem StatementWhen studying beetles that are typically smooth, large, and white, three mutations have been identified causing recessive phenotypes: bumpy, small, and grey. In this genetic exercise, the goal is to understand the inheritance pattern by crossing different beetle strains.#### Genetic Crosses and Phenotypic Classes**Initial Crosses:**1. **Cross 1:** - **Parents:** True-breeding smooth white beetles and true-breeding bumpy grey beetles. - **Result:** All smooth white F1 beetles.2. **Cross 2:** - **Cross of F1:** F1 beetles to true-breeding bumpy grey beetles. - **Mapped Distance:** A calculated map distance of 5 cM between the smoothness and color loci was determined using the F2 phenotype.**F2 Generation Phenotypes:**- **Analysis of 800 F2 beetles** provides the following genotype and phenotype data:| Genotypic Class | Phenotypic Class | Number of this Phenotype ||-----------------|-------------------|--------------------------|| | White, Smooth, Large | 380 || | White, Smooth, Small | 380 || | Grey, Bumpy, Large | 20 || | Grey, Bumpy, Small | 20 |**Genotypic and Phenotypic Symbols:**- **Body Type (Smooth/Bumpy):** Use 'S' or 's'- **Color (White/Grey):** Use 'W' or 'w'- **Size (Large/Small):** Use 'L' or 'l'#### Part B: Cross Analysis**Goal:**- Discover the genotypes and phenotypes of two parental beetles (P generation) that yield F1 beetles exhibiting large and smooth traits.**Procedure:**1. **Cross F1 with True-breeding Small, Bumpy Beetles:** - **Results:** - 228 large and smooth - 19 small and smooth - 16 large and bumpy - 237 small and bumpy2. **Construct a Table:**| Phenotype | Number Observed ||------------------|-----------------|| Large, Smooth | 228

Since you posted more than 1 question, we will be answering the first for you. Please post the…

working type beetie that normally smooth, large and you discover 3 mutations that lead to the recessive phenotypes bumpy, small and grey, respectively. You cross true-breeding smooth white beetles to true-breeding bumpy grey beetles and get all smooth white F1 beetles. Then, your cross the F1 beetles to true- breeding bumpy grey beetles and, after analyzing 800 F2s, calculate a map distance of 5 cM between the smoothness and color loci. a. What are the 4 phenotypic classes you get in the F2? Fill in the table below. For the body type (i.e., smooth or bumpy), use S or s to designate the alleles. For the color (ie., white or grey), use W or w to designate the alleles. For the size (i.e., large or small), use L or l to designate the alleles. Genotypic class Phenotypic class Number of this phenotype 380 380 20

working type beetie that normally smooth, large and you discover 3 mutations that lead to the recessive phenotypes bumpy, small and grey, respectively. You cross true-breeding smooth white beetles to true-breeding bumpy grey beetles and get all smooth white F1 beetles. Then, your cross the F1 beetles to true- breeding bumpy grey beetles and, after analyzing 800 F2s, calculate a map distance of 5 cM between the smoothness and color loci. a. What are the 4 phenotypic classes you get in the F2? Fill in the table below. For the body type (i.e., smooth or bumpy), use S or s to designate the alleles. For the color (ie., white or grey), use W or w to designate the alleles. For the size (i.e., large or small), use L or l to designate the alleles. Genotypic class Phenotypic class Number of this phenotype 380 380 20

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

See similar textbooks

Similar questions

dd-ons Help в I U A Calibri 12 三三1 |:三 6. Consider a guinea pig with a homozygous genotype and a white fur color phenotype. a. What is the probability this parent will produce a gamete with the dominant allele? b. What is the probability this parent will produce a gamete with the recessive allele? C. If 31 sperm cells are collected from this guinea pig, how many would you expect to have the recessive allele (as determined by sequencing the gene)? !!!
uh ec CV + + 10.5 SC 9.1 scute bristles echinus eyes 9.2 ct + crossveinless wings Table 1: phenotype wild-type tapdance feet crossveinless wings tapdance & crossveinless cut wings 15.9 vermilion eyes V + + 66.8 Drosophila X chromosome Use the map provided above for problems 1 & 2. Problem 1: 11.2 10.9 garnet eyes M A new gene is being investigated in fruit flies. The recessive allele of this gene (t) causes the flies' feet to grow tiny tapdance shoes, while the dominant allele (t*) permits wild-type feet to develop. Preliminary studies indicate that this new gene is located on the X-chromosome. You decided to perform a two-point testcross to determine its position relative to the well-established crossveinless wings gene (cv). You cross a female heterozygous for both genes with a testcross male fly and obtain the male offspring results shown in table 1, below. Using this information, answer the following questions: # male offspring 13 405 401 11 forked bristles a) is the original…
Help please
please explain why answer is C thoroughly with steps thank you :)))
Problem) A university student is studying the inheritance of 2 genes of pea plants. Color of plant: Blue is dominant (B), and yellow is recessive (b) Spikes or no spikes: Having spikes is dominant (G), and having no spikes is recessive (g). Which of the following findings would indicate to the student that these two traits are located close together on the same chromosome? a) The traits show independent assortment b) All gametes of a double heterozygous individual (BbGg) are either BG or bg c) A double heterozygous individual has four types of gametes in approximately equal proportions: BG, Bg, bG, and bg d) Student finds that there is frequent crossing over between the 2loci
Need help with problem
Paragraph Styles DIHYBRID GENETICS PROBLEMS Name In garden peas, tall (T) vine is dominant over short (t) vine, and round pea pod (R) is dominant over wrinkled pea pod (r). Cross a homozygous tall, round pea plant with a homozygous short, wrinkled pea plant. Show the genotypes and phenotypes of the F1 offspring, and the probability of each. 1. Genotype of the homozygous tall, round pea plant Genotype of the homozygous short, wrinkled pea plant. Genotypes Phenotypes acer
Please answer fast
Please help urgently
Help me