If mutations such as those of the Ubx gene candrastically change morphology in a single step,why do most evolutionary biologists maintainthat modification of existing traits and the evolution of novel characters have generally proceeded by successive small steps?

Q: How does anatomical homology provide evidence of evolution?

A: According to guidelines we have to answer the first question only. so please kindly post the…

Q: The term biological introgression, or the introduction of genetic material into a population, is…

A: Introgression, also known as  introgressive hybridization is the incorporation of alleles from one…

Q: What is convergent evolution? How does it support the theory ofevolution?

A: Convergent evolution is a phenomenon in which organisms evolve similar features although they are…

Q: If not all mutations that contribute to species evolution are passed down, what conditions must be…

A: Mutations  These are the alterations in the sequence of the DNA, occured due to the mistakes during…

Q: Why do scientists favor the clade in which derived traits evolve the fewest times?

A: Clade refers to the natural group of organisms that shows monophyletic evolution, which means they…

Q: An ancient gene underwent duplication during the course of evolution to yield two chain genes…

A: Gene duplication is a major mechanism through which new genetic material is generated during…

Q: Charles Darwin had so many observations after his voyage through the HMS beagle. What Darwinian…

A: Charles Robert Darwin, English naturalist, was the first to founded the theory of organic evolution.…

Q: How could natural selection have led to the evolution of adaptationssuch as camouflaging coat color…

A: Camouflage means the use of combinations, coloration or illumination for concealment by making…

Q: Recent reconstructions of evolutionary history are often dependenton assigning divergence in terms…

A: The molecular clock is the clock that is used to measure the mutation that gets accumulated in the…

Q: What is the most straightforward evidence at the molecular level in support of the idea that modern…

A: The genetic ancestry and relationships are contemporary humans were obtained from data basing on DNA…

Q: What is the difference between a neutral and an adaptive evolutionary process? Describe two or more…

A: Evolution: Evolution is a systemic process that is happening step by step manner to select an…

Q: Snakes evolved from ancestors who had the ability to walk. Some snakes, in fact, still have small…

A: Evolution is a continuous process and we are still evolving. Evolution is nothing but adapting to…

Q: Imagine that you have the DNA sequences fromthe intron of a gene in three species called A, B,and C.…

A: We use the Distance method , more accurately the Unweighted Pair Group Method with Arithmetic mean…

Q: Rates of evolution appear to vary in different lin-eages. For example, the rate of evolution in the…

A: Different species have different rates of evolutionary change. This is based on many factors. Thre…

Q: How do the genome sequences of orangutans and gorillas helpscientists further resolve the…

A: Evolution is the process of heritable change in the characteristics of an organism. Such changes…

Q: In many organisms, such as insects and flowering plants, morphological traits have been lost insome…

A: Genetics is a study of genes, heredity, and genetic variation in an organism. Living organisms…

Q: What is convergent evolution and how is it differentfrom horizontal gene transfer?

A: The change in the heritable characteristics of the species across many generations is called…

Q: Knowledge of the genomes of ancient homininsmight help us better understand not only the…

A: Human evolution is the evolutionary process of human beings specially anatomical and genetic…

Q: Which of the following statements is false regarding lateralgene transfer?(a) It accelerates…

A: Lateral or horizontal gene transfer, is a process by which an organism transfers its genetic…

Q: First, concerningthe evolution of development, what have been the changes in developmentalmechanisms…

A: (Since you have posted multiple doubts, we have solved first question below. Please post rest…

Q: When considering new genes in different species, which of the following is NUT true? Duplication and…

A: Answer. Acquisition of new genes. There are two fundamentally different ways in which new genes…

Q: Just as anatomical homology can lead to vestigial structuressuch as human wisdom teeth and the wings…

A: Darwin is one of the scientist that proposed the process that every new species is coming from…

Q: There are two hypotheses to explain the pattern of Human Evolution: 1) Progressive Evolution of a…

A: Since we are so complicated, no one field can truly "understand" us. So, let's examine some of the…

Q: Can convergent (or parallel) evolution of similar morphology in two different lineages involve DNA…

A: Evolution is the natural process where is a change in the heritable characteristics of biological…

Q: How is pseudoextinction related to gradual evolutionary change?

A: Pseudoextinction occurs when the ancestral members of a species are extinct but their descendants…

Q: Determine whether each of the following traits are the result of convergent evolution?

A: Convergent evolution is the process where distantly related organisms independently evolve from…

Q: Which of the following is the only correct pairing for two concepts that mean the same thing?…

A: Evolution is the change in the characteristics of a species over several generations and relies on…

Q: Homologous traits are BEST characterized by which of the following? O A They are traits that are…

A: Definition of the terms derived traits, ancestral traits, homologous structures, vestigial…

Q: 375 million years ago, the population of organisms we call Tiktaalik had variation in many aspects…

A: Tiktaalik roseae  is a 375 million year old fossil fish which was discovered in the Canadian Arctic…

Q: f humans evolved from apes, why are there apes until today?

A: Evolution is the process of changing the heritable characters of populations of organisms over…

Q: Which type of evidence for evolution is most accurate in determining evolutionary…

A: In biology, evolution refers to changes in an organism' features over numerous generations as a…

Q: Why is mutation important to evolution if it is the microevolutionary force t

A: Mutation is the process in which the DNA sequences are changed due to misplaced entries, deletion or…

Q: The mutations which are of greatest importance to the process of evolution are those which are…

A: The characteristic of each species have changed gradually over time. These changes can be termed as…

Q: Full or partial limblessness has evolved many times invertebrates (snakes, lizards, manatees,…

A: Evolution is the process of change over time, typically involving gradual changes that lead to new…

Q: How do homologous and homoplastic features provide evidence of evolution?

A: Various tests and scientific observations are used to support naturally chosen evolution. The…

Q: What does the finding that the PTC taster polymorphism evolved independently in humans and…

A: Evolution is the process by which an organism inherits or adapts favorable characteristics that…

Q: In general, how does contemporary evolutionary theory account for the evolution of complex…

A: Evolution is a process through which cumulative changes occur at the genetic level in the…

Q: If a species is immutable (mutations do not occur) is evolution possible? Explain

A: Mutations are the changes in the DNA that occur in the gamtes I. e sperms and ova and which is thus…

Q: O Modern taxonomy combines the evolutionary history of ta plate tectonics and paleo-ecological data…

A: Integrative taxonomy' is characterized as the science that expects to delimit the units of life's…

Q: DNA-sequencing studies for a gene in two closely relatedspecies produce the following numbers of…

A: SNP is the single nucleotide polymorphism, is the genetic variation of one nucleotide in the genome…

Q: Why is mutations almost always neutral or harmful? If this is true, why are mutations nevertheless…

A: mutations are any chanage in the nucleotide sequence in genetic material of an organism .  gene is…

Q: An octopus and an owl both have large eyes with similar structures.  If their most recent common…

A: Genetic drift, mutation, Gene flow are chance events and hence not responsible for generating…

Q: If mutations such as those of the Ubx gene

A: Ubx or ultrabithorax gene is a homeobox gene which is involved in the morphogenesis or the wing…

Q: What genetic changes madeus uniquely human? What furtheraspects of our recent…

A: DNA was identified in the nucleus in the late 1860s by Friedrich Meischer, but its function was…

Q: . The upper forelimbs of humans and bats have fairly similarskeletal structures, whereas the…

A: Present days mammals probably evolved from a short legged (limb) insect eating Pentadactyl ancestor…

Q: What types of gene changes are most associated with the evolution of new anatomical features in a…

A: A specific sequence of nucleotides in DNA or RNA that is usually found on a chromosome and serves as…

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.