Our phenotypic traits and personalities come from the expression of our genes. When and how do you think these complexities evolved? Why do you think this happened?

Q: How does DNA being the universal molecules of inheritance in all cells support evolutionary theory?

A: DNA stands for Deoxyribo nucleic acid.

Q: Which of the following statements about the grandmother hypothesis is correct?     This is a…

A: The grandmother hypothesis states that fitness benefits gained by older women for helping in rearing…

Q: How can natural selection favor different phenotypes at different times?

A: Introduction  Evolution is the key process which regulates the survivability and continuity of…

Q: What is the difference between artificial selection and natural selection?

A: Evolution can be precisely defined as any change in the frequency of alleles within a gene pool from…

Q: Is it true that natural selection allows only the better alleles to be passed onto the next…

A: Darwin stated the theory of natural selection in which he gave the following arguments: First, he…

Q: Jean-Baptiste Lamarck (1744-1829), a French scientist who believed in evolution, is known for…

A: Evolution is a phenomenon that brings about alterations in life forms from simple to more…

Q: 1. Definitions of phenotype, genotype, allele, gene, microevolution, macroevolution

A: We’ll answer the first question since the exact one wasn’t specified. Please re-submit a new…

Q: Why does variation exist in nature? What could be its significance?

A: Variation causes and definition ---  The following factors are mainly responsible for variation ---…

Q: What is the long term and short term effects of natural selection on coding and non-coding DNA, the…

A: Natural selection is the word coined by Darwin. It is simply the theory which states that the better…

Q: No two people are genetically identical, except for identicaltwins. The main source of genetic…

A: Reproduction is the biological process by which new individual organisms called offspring are…

Q: Scientific studies have shown that the majority of human genetic differences worldwide exist within…

A: The objective of the question is to determine whether the majority of human genetic differences…

Q: 1.  Do you think it is important to understand evolution?  List three different ways that evolution…

A: The concept of evolution was given by two scientists Darwin and Wallace. It was based on natural…

Q: Skin color in humans is an example of an evolutionary trade-off: a situation where a trait that is…

A: what is evolutionary trade offs.. It is a situation in an organism where changes in traits brings…

Q: Which of the following changes or mutations can be acted upon by natural selection? For each choice,…

A: Charles Darwin is often considered the father of evolution theory as he gave the modern theory of…

Q: Most new mutations are detrimental, yet rare beneficial mutations canbe adaptive. With regard to the…

A: Mutations are nonrandom and no directional, sometimes mutations may be beneficial, but most of the…

Q: In order for a trait to evolve via natural selection, which of the following must be true regarding…

A: Natural selection is the adaptation and alteration of populations of living organisms. Individuals…

Q: Hippocrates, an ancient Greek philosopher, explained heredity following a "Pangenesis" hypothesis…

A: Hippocrates explained heredity based on  "Pangenesis or blending inheritance theory which states…

Q: if the recessive allele r is lethal, what genotypes will natural selection benefits ?

A: Recessive alleles are nearly tough to completely eradicate from a population since both AA and Aa…

Q: Which of the following is NOT a valid evolutionary explanation for why aging (or senescence)…

A: An organism begins to weaken and frailty as it ages, which is a natural occurrence. Once a person…

Q: Describe an ancient hypothesis that explains how traits are passed from parents to offspring. What…

A: Answer: Introduction: Evolution is the development by which populations of organism’s changes over…

Q: Take a look at this family. Each parent has a different color hair, one blond and one brown. The two…

A: Introduction Gene is the functional unit of heredity. We inherit all the characters from our…

Q: Gregor Mendel never saw a gene, yet he concluded that some inherited factors were responsible for…

A: Inherited factors are those that carry the genetic information from one species to another.…

Q: This illustration from an old textbook shows some of the over 150 different dog breeds that can be…

A: Breed is a specific group of domestic animals having homogeneous appearance,  behaviour and other…

Q: Certain genes influence the probability of developing Alzheimer’s disease or other conditions that…

A: Alzheimer’s disease is the major cause of dementia in people who are older than 65 years. It is a…

Q: Is natural selection random with respect to fitness?

A:

Q: Why are only inherited variations important in the evolutionary process? Explain your answer.

A: Evolution is a process that causes changes in a population's genetic material through time.…

Q: OHO does phenylketonuria affect brain developm How does cancer spread from one tissue to anoi How…

A: Population genetic science is that the study of genetic variation among populations, and involves…

Q: Imagine that genetic technology advances to the point where the genetic profile of an individual can…

A: Each and every live organism on earth contains gene, it may be DNA or RNA, or both. This gene…

Q: Genes control thousands of different traits in plants. These genes can be selected for during…

A: Traits are distinct characteristics or features of an organism resulting from the interaction…

Q: Should we genetically engineer humans to remove undesirable traits? Why or why not?

A: In every country, numerous governmental entities regulate the process of genetic engineering. It…

Q: how would you convince a person about the validity of evolution in genetics?

A: Earth is inhabited by a tremendous variety of life, more than 1 million species have been discovered…

Q: How does DNA being the universal molecule of inheritance in all cells support evolutionary theory?

A: DNA stands for deoxyribonucleic acid is a molecule which consists of all of the information required…

Q: Differentiate genetic variation from environmental variation. Are they necessarily mutually…

A: Answer

Q: - If our DNA contains all the information about who we are, how can something that does not involve…

A: There are several process that can change the phenotype without changing the gene sequence.

Q: If vestigial traits are no longer useful to an organism, why don't they evolve out of the…

A: Vestigial organs are those structures that are present in the body which had some sort of use for…

Q: Of the following, which is the least plausible hypothesis for why natural selection has not…

A: Most human civilizations have male homosexual preference (MHP). Many evolutionary hypotheses have…

Q: Gregor Mendel never saw a gene, yet he concluded that some inherited factors were responsible for…

A: Genetics is the study of gene, genetic variation. Inherited factors are the traits which encode DNA…

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.