A species of butterfly shows variation in the length of the antennae. You measure antennae in a butterfly population and find the mean to be 15 mm. You calculate a heritability of antennae length to be 1 (h? = 1). That summer, there is a severe drought. Many of the butterflies die and only a few survive to reproduce. The surviving butterflies have a mean antennae length of 17 mm. a) What is the predicted mean limb-length of the offspring of the surviving butterflies? [ Select ] b) What type of selection was acting on antennae length in these butterflies? [ Select ] c) Five years later, you go back and measure antennae length in this butterfly population again. Every butterfly in the population has antennae measuring 16 mm. What is the heritability of antennae length in this population now? [ Select ]

Q: Drosophila hemipeza is an endangered fruit fly that is only found on the Hawaiian island of Oahu and…

A: Genetic diversity refers to the total number of genetic characteristics (alleles) present in a…

Q: You get a job with the Texas Dept. of Agriculture. One day you are called to a cattle ranch that is…

A: Polygyny occurs when two or more queens share a single colony, and the queens can either be related…

Q: Consider the following case of blending inheritance. A population of plants starts out with an equal…

A: Blending inheritance is a pattern of inheritance in which the characters of parents mix up and…

Q: Calculate N+1 for this non-continuously reproducing population of weird bugs that live on a planet…

A: Given information It is a non-continuously reproducing population. No= 1000 Ro (reproductive rate)=…

Q: What is the magnitude of inbreeding depression if selfed offspring have four times lower fitness…

A: Inbreeding - the mating of individuals or organisms that are closely related through common…

Q: The expected phenotypic ratio for leaf shape and fruit colour genes is 9:3:3:1, if both genes are on…

A: Introduction:-  The difference between observed and the expected outcomes between the Mendelian…

Q: What is the probability that we can exclude a father as the true parent

A: Answer a. The probability that a father can be excluded as a parent is 0.1344 Answer b. Because here…

Q: There is an outbred population of mice living in a farmer’s field. Mutations occur at a gene called…

A: A population is a group of individuals of the same species inhabiting a specific geographical area.…

Q: You discover a population of marmosets in South America and study them for your graduate…

A: Remember the basic formulas:   p2 + 2pq + q2 Equal to one, and p + q = one.   p = frequency of…

Q: TRUE or FALSE: this population is in Hardy-Weinberg equilibrium? What is the predicted frequency of…

A:

Q: A meadow is home to a population of plants of a particular species. Among these individuals are 125…

A: Introduction :  Genetic traits are passed down through inheritance from parents to their offspring,…

Q: A population of horses in the magic land is having a problem. Individuals are not mating randomly…

A: We can solve this with the help of punnet square and make subsequent generation chart and…

Q: Imagine a population 528 individual plants.  In this population, 4 % of the plants produce red…

A: The Hardy-Weinberg equilibrium principle states that, under certain conditions, the frequency of…

Q: The frequency of an autosomal recessive condition is 0.001 (1 in 1000) in a population. Assuming…

A: Hardy Weinberg’s principle is the mathematical representation of population analysis which…

Q: In Scandinavia, it was found that the native mountain hare (Lepus timidus) mate with the introduced…

A: It is difficult to estimate the exact number of pairs of factors (genes) contributing to mature body…

Q: In a particular species of flower, C1 codes for red flowers, C2 codes for white, with the…

A: The Mendenlian principles of inheritance, sometimes fails to respond to certain situations. The…

Q: Should I try to rescue my sister who is drowning if there is a 75% chance that I will drown in the…

A: The Hamilton's rule states the conditions under which reproductive altruism evolves. The rule is…

Q: In an experimental population ofTribolium (flour beetles), body length shows a…

A: The study of genetic variations, genes, and heredity is called “genetics”. The scientific study of…

Q: An alpine wildflower species varies in flower color. There are red-flowered plants (RR), red and…

A: Genotype frequencies of parent generation: RR = 0.35 RW = 0.34 WW = 0.31 Let us assume RR = 350…

Q: Elephant seals are a sexually dimorphic species of marine mammal that lives off the coast of…

A: Heritability is a measure of the difference in human genes that cause differences in their traits.…

Q: Suppose a population has two alleles at a particular locus, and individuals with different diploid…

A: Hardy Weinberg’s principle is the mathematical representation of population analysis which…

Q: Figure

A: The cross of the yellow round seeds with the wrinkled green is a type of dihybrid cross.  The ratio…

Q: What is the frequency of cats in the current population that are homozygous dominant?   Question 2…

A: Hardy-weinberg principle describes a theoretical situation in which a population is not evolving.…

Q: There are two color morphs in boomer foxes (not a real species), red and gray.  Both tend to have a…

A: The ability of an organism to survive, reproduce, and pass on genetic traits to the next generation…

Q: Suppose that in wasps, brown wings are dominant to white wings, and 40% of all wasps in a population…

A: The Hardy-Weinberg equilibrium is used like a Punnett square to see if genotype frequencies in a…

Q: Imagine that the volcano on Mt. St. Helens erupts again.  All life is removed from the side of the…

A: Introduction  Individual species cannot develop; instead, populations (or gene pools) evolve as gene…

Q: In a population of snapdragons, at the locus controlling flower color you find that 0.2 are AA, 0.65…

A: Given: AA = 0.2 Aa = 0.65  aa = 0.15 Need to find the inbreeding coefficient.

Q: There is a population of cats and 16% of the cats this population show a recessive trait. a. What…

A: 16% of the cat population is affected by a recessive trait.Calculations must be made:The recessive…

Q: Suppose a population has two alleles at a particular locus, and individuals with different diploid…

A: Fitness refers to how well an organism passes its own genes to the next generation. It refers to…

Q: Elephant seals are a sexually dimorphic species of marine mammal that lives off the coast of…

A: Narrow-sense heritability is defined as the fraction of phenotypic variance that can be attributed…

Q: Match the structures of the male and female reproductive systems numbered above with their names…

A: Male reproductive is the system which produces male gametes which helps in the reproduction and I…

Q: Which of the following statements would be true of ahuman trait that has high heritability in a…

A: The genes help in the transferring human traits or characteristics from one generation to another…

Genetic Variation

Genetic variation refers to the variation in the genome sequences between individual organisms of a species. Individual differences or population differences can both be referred to as genetic variations. It is primarily caused by mutation, but other factors such as genetic drift and sexual reproduction also play a major role.

Quantitative Genetics

Quantitative genetics is the part of genetics that deals with the continuous trait, where the expression of various genes influences the phenotypes. Thus genes are expressed together to produce a trait with continuous variability. This is unlike the classical traits or qualitative traits, where each trait is controlled by the expression of a single or very few genes to produce a discontinuous variation.