Assume you are studying a population of hummingbirds. The population has an average beak length of 20 millimeters, but a drought removes one type of flower that only long-beaked hummingbirds survive. The surviving population has an average beak length of 28 millimeters. You know that the heritability is 0.25. What is the predicted response to selection?   a. 8 millimeters   b. 0 millimeters    c. 2 millimeters    d. 4 millimeters

Q: The frequency of the defective allele of a gene for an autosomal dominant disorder is 1/5. In a…

A: Introduction  An autosomal dominant disorder is a genetic disorder caused by a mutation in a gene…

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: The allele frequency of C is 0.4 and c is 0.6. If the population is in Hardy-Weinberg equilibrium,…

A: Hardy-Weinberg equilibrium is an essential principle in Genetics, which states that the genetic…

Q: What is the probability that one of them is a sphere and the other is a pyramid (order not…

A: Probability is the study of finding the possible outcomes in a total set of outcomes. Thus it tells…

Q: In a population of squirrels in North Carolina, the heritability forbody weight is high. This means…

A: Heritability can be defined as the amount of genetic variation and one of the statistics used in the…

Q: A researcher performed a testcross with of an individual that was Dd Hh genotype. Which ratio would…

A: A testcross is a genetic cross or breeding experiment that is used to determine the genotype of an…

Q: The frequency of the defective allele of a gene for an autosomal recessive disorder is 1/10. In a…

A: Introduction :- An autosomal recessive disorder is a genetic condition caused by the inheritance of…

Q: Minotaur is only found in the Labyrinth on the island of Crete. The area is famous for its annual…

A: Survival rate is defined as the percentage of individuals in a study that are still alive for a…

Q: Flower colour in snapdragon plants is a single gene trait controlled by two alleles. In a…

A: Hardy-Weinberg Equilibrium is a concept that serves as a benchmark for researchers to analyze gene…

Q: How are traits normally distributed in a population? a with one peak shifted toward an extreme b…

A: Population : In biology a group of organisms that are capable of interbreeding among themselves and…

Q: A population in Hardy Weinberg Equilibrium has 300 individuals and 25% of these are recessive.  What…

A: Hardy-Weinberg equilibrium is present in a large population in which there are no evolutionary…

Q: Following up on Question 6, assuming random mating, what would be the percentage of long-horned baby…

A: In genetics the genes are basically the hereditary units of life. The genes contains certain…

Q: Suppose that you are examining a population of 100 cats. You are interested in the gene for hair…

A: Allele is the alternative form of a gene and a allele code for different versions of a particular…

Q: s been calculated to be 0.56.  The allele frequency for A1 is 0.6.  Calculate the genotype…

A: Inbreeding is the offspring generation which is the result of the mating or breeding of closely…

Q: Imagine that, in the near future, humans will have to find a suitable home on a new planet. What are…

A: If we want to survive on some other plants following things are must needed for our survival…

Q: What is the average survival rate for the Minotaur when the breeding season starts?   A. 0.42…

A: Minotaur Minotaur is an Greek mythical creature which have head and tail of bull and body of human.…

Q: You as a researcher decide to study whether there is a correlation between birth weight and 14 month…

A: Correlation is the proportionate dependence of one variable on other. Its value lies between -1 to 0…

Q: a population has 25 individuals with genotype AA, 20 with genotype Aa, and 5 with genotype aa, what…

A: B. 0.4

Q: In a population 25 individuals that recently emigrated from a mainland population to form a new…

A: The emigration of population to a new land is a type of founder effect which causes changes in the…

Q: The response to selection of flower size in a plant species is studied. Flower size is measured in…

A: Heritability is used in statistics in the field of genetics related to breeding to find out and…

Q: The frequency of the defective allele of a gene for an autosomal dominant disorder is 1/5.  In a…

A: Introduction  Autosomal refers to the 22 pairs of chromosomes in humans that are not involved in…

Q: A farmer is trying to breed larger pigs. Her initial population has a mean weight of 100 kg, and she…

A: heritability is a variation due to genetics in phenotype with in a group of individuals.  it can be…

Q: Assume you are studying a trait that affects boldness in blackbirds. You discover that boldness is a…

A: The traits or characteristics that are regulated by several genes are known as quantitative traits.…

Q: The mean number of offspring produced by each of three genotypes is shown below.  What is the…

A: The fitness of a genotype explains the reproductive success of that genotype. The term fitness…

Q: Consider a gene with two alleles, G and g, and heterozygote superiority. Which statement about the…

A: A heterozygous genotype is defined as the condition where an individual inherited two different…

Q: A corn breeder wishes to improve yield. As part of their work, the narrow-sense heritability for…

A: In a narrow sense heritability, the genes control only half of the variation.

Q: Albinism occurs in the United States at a frequency of 1 in every 160,000 live births. Assume that…

A: Albinism is an autosomal recessive disorder characterised by pigmentation of the skin, eyes, and…

Q: When calculating heritability in finch beak size using parent/offspring data, we find that 70…

A: These can be determined by environmental factors, genetic factors or an interaction between the two.…

Q: Place the steps for calculating predicted genotype frequencies in order from first to last.   1.…

A: Introduction In the absence of other evolutionary factors, the Hardy–Weinberg principle, also known…

Q: In achondroplastic dwarfism, an autosomal dominant disease, the gene is lethal in homozygotes. If…

A: Hardy-Weinberg equilibrium is a mathematical equation used to describe genetic equilibrium within a…

Q: If you were to graph the height of a number of individuals following a normal distribution, where on…

A: Q. If you were to graph the height of a number of individuals following a normal distribution, where…

Q: In a Hardy-Weinberg population with two alleles, G and g, that are in equilibrium, 40% of the…

A: In population genetics, the Hardy-Weinberg principle, often referred to as the Hardy-Weinberg…

Q: The mean number of offspring produced by each of three genotypes is shown below.     10 MM 30 MN…

A: The selection coefficient is calculated by following formula:  1- relative fitness of that genotype.…

Q: In a population of 1000 mice, the allele frequency for dominant brown fur is 0.25. The population is…

A: It is given that a population of 1000 mice is in the Hardy-Weinberg equilibrium. Allele frequency of…

Q: Assume two alleles A1 and A2 with known frequencies e.g. p (A1) = 0.7, q (A2)= 0.3 What would be…

A: There is single gene. It has two alleles: A1 and A2. The allelic frequency of A1: 0.7  The allelic…

Human Evolution

Human evolution is the process of evolution of humans from early man to anatomically modern humans. The process of evolution in humans leads to the gradual development of traits like bipedalism. Humans are the highly social animals that make them the most advanced animal on Earth.  Human evolution is an outcome of interaction among the following processes: