Two species of antelope, one from Africa, the other from Asia, are put into the same enclosure in a zoo. To the zookeeper's surprise, individuals of the different species begin to mate and produce healthy, hybrid baby antelopes. Explain why a biologist might not view these offspring as evidence that the two species of antelope are in fact one.

Q: When Homo sapiens migrated out of Africa they encountered a related species, Homo neanderthalensis,…

A: Understanding human evolution is crucial as it provides a genetic roadmap of our species’ history.…

Q: gene for pea pod colour has two alleles. The dominant allele, G, is associated with the dominant…

A: According to Hardy weinberg equilibrium p2 + q2 + 2pq = 1 and p+q=1² p= frequency of the dominant…

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: This trait results from a mutation in the a-keratin gene, and this mutation causes the feathers to…

A: The effect of mutation is seen if there is a single change or multiple changes. This depends upon…

Q: Is my hypothesis supported by the data?

A: Sir Gregor Mendel was a priest and a teacher who did the famous hybridization experiment on garden…

Q: Your parents are studying the evolution of the pumpkin size to make the best patch in your city.…

A:

Q: Blue snorks are dominant to pink snorks. You come across a field of all blue snorks and mate them…

A: Dominant traits are visibly expressed in the offsprings, while the recessive trait are usually…

Q: When great tits were experimentally reared in blue tit (Cyanistes caeruleus) nests, they survived…

A: Inter specific brood parasitism is a kind of parasitism in which one species of birds lay eggs in…

Q: The Chatham Islands are about 850 kilometers off the coast of New Zealand. One species of bird…

A: Taxonomy is a system for hierarchical classification and identification system for species. Carl…

Q: If 83% of the Elmo Muppet population has a condition that makes them refer to themselves in the…

A: 1. Here Ee is the fittest among all the eloms but as it is unavailable so ee is the fittest and EE…

Q: An event occurs where a large population of photosynthetic sun-basking sharks move to a new…

A: Photosynthetic sun-basking sharks remains on surface and keep their mouths open for 40-60 seconds…

Q: An island of the Galápagos archipelago is home to a medium ground finch that subsists mainly by…

A: The theory of the inheritance of acquired characteristics proposed by French naturalist…

Q: A farmer bought a herd of 500 sheep, taken from a freely breeding population, and later found that…

A: Hardy-Weinberg Equilibrium states that the allele and genetic frequency of the population will…

Q: A black chicken mates with a white chicken, and all of their offspring have both black and white…

A: According to Mendel's law of inheritance, a gene is present in two allelic forms, a recessive and a…

Q: Which of the following examples suggested to Charles Darwin that hybridization between different…

A: The example that most suggests hybridization between different species offered no benefit to the…

Q: Your biologist friend studies genetics of a new lizard found deep in the rainforest. The allele for…

A: In lizard , there are two allele responsible for skin colour : Allele B and allele b Allele B gives…

Q: biology (genetics) : Coat color in a given strain of dogs is determined by two independent genes. A…

A: To initiate our analysis, we must first ascertain the total population size and the frequencies of…

Q: ) The year is 2050. The climate has continued to warm. Areas in northern Canada and Alaska are…

A: There are few important points which should kept in mind these are : Every organism requires…

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: One of the earliest postzygotic barriers to arise is hybrid sterility. Two plants can be crossed,…

A: Sterility occurs when the organism is not able to produce its offspring. When hybrids are crossed,…

Q: Distinct species that are able to interbreed in nature are said to “hybridize,” and their offspring…

A: The hybrids form from two different species. The hybrid continues to produce its next generation in…

Q: The red wolf (Canis rufus) was once widespread in the southeastern United States but was declared to…

A: The endangered species is a species whose number has fallen to a critically low level and is likely…

Q: Anisogamy is the term for sexual dimorphism in gamete size.   a) Discuss the evolution of anisogamy…

A: Anisogamy, a mating arrangement characterized by male and female gametes in varying sizes, has long…

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: A situation in which hybrids are less successful (lower fitness) than individuals from either parent…

A: Answer

Q: The bollworm is a pest that eats and damages corn crops. During their short lifespans, Bollworms…

A: Insects have the ability to develop resistance towards the insecticides. Some of the insects are…

Q: A population of lizards in Northern California is brown and is not poisonous to birds. A population…

A: Natural selection always favors the species with good adaptability and high survivability. Change in…

Q: D) The root of a binary tree has i) 0 i1) 1 iii) 2 iv) 4 parent(s). E) A node can have 0 or more…

A: Introduction: a binary tree is a tree data structure in which each node contains two children that…

Q: In the Paraguayan Easter Atlantic Forest, a mating between a homozygous black yaguarundi and a…

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Q: According to the theory of evolution, why have these changes occurred in horse populations over the…

A: The evolutionary lineage of the horse can be best understood with the paleontology.  The history of…

Q: A population of interbreeding birds has been split by a geological event after which the isolated…

A: Species divergence is the process in which two species evolve from common ancestor due to…

Q: Why is inbreeding not advisable?

A: Inbreeding is the process of mating closely related individuals like brother and sister, father and…

Q: body, with deep red red tail feathers. An international co breeding these birds in an attempt to…

A: Gene is the basic unit of heredity. Two or more alternative forms of a gene, which arise by the…

Q: with solid-color fur or with white patches of fur. Wildcats are the genetic ancestors of the…

A: An experiment is a systematic and controlled procedure conducted to gather empirical evidence, test…

Q: Imagine you cross two closely related plant varieties: Maize and teosinte. You hypothesize that…

A: Hybrid  Hybrid is a product of two different varieties of same or different species.

Q: Which of the following is an example of codominance? Select

A: In the codominance both the alleles are expressed in heterozygous state. The alleles are neither…

Q: Part A: If the fuzziness trait had a strong genetic component (e.g. high heritability) what pattern…

A: Genes are hereditary units that possess special traits (characteristics). These genes are passed on…

Q: Classify the examples as pre‑zygotic or post‑zygotic barriers.

A: Prezygotic barriers prevent mating or fertilization, while postzygotic barriers prevent the…

Q: Of the following, which is an example of a postzygotic barrier? O Due to incompatible interactions…

A: Introduction Fertilization is a process by which a male gamete and female gamete combines and zygote…

Genetic Evolution

Sexual reproduction produces distinct population variations. Heredity determines the traits and qualities to be passed down to the progeny. Over time, this variation within-species is also affected by the process of human evolution. The study of how genetic variation leads to evolutionary changes is known as genetic evolution. If a trait helps an organism to survive and reproduce, it is more likely to be passed down the generations. It is rare that such traits result in a completely distinct set of traits in descendants than the ancestral population; this can result in the emergence of a new species.