What is the difference between a “derived" versus a "primitive" trait? Give an example of both, seen in Au. afarensis.

Q: A consortium of dairy and beef farmers has hired you to study the evolutionary origins of domestic…

A: Evolution is a change in the heritable qualities of natural populaces over progressive ages. These…

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: In the fly speciation experiment described in class, Drosophila from a single culture was split into…

A: Introduction: The evolutionary process by which new biological species arise is called speciation.…

Q: Length of snakes can vary between 0.8m and 2.3 m long. In a large population of snakes there were…

A: A genetic trait can be determined by one or more than one genes.

Q: From the results of the experiment , explain how we know that the kiwis are more closely related to…

A: Kiwis, emu, moas, and cassowary are all flightless birds belonging to a diverse group called ratite.…

Q: One of the findings from Strickland et al. 2019, was that certain color morphs among Chelymorpha…

A: Chelymorpha alternans is an organism that behaves, develops, and interacts with host plants. They…

Q: DNA sequences from randomly chosen individuals from the two populations are shown here – A1…

A: Genetic variation is how much the genotype of an organism differs from other organisms. The genotype…

Q: For a chamelons ability to color change, what type of selection (directional selection, stabilizing…

A: Natural selection can bring the adaptive evolution . It will increases the frequency of allele that…

Q: The image shows two species of lizards. Phrynosoma cornutum (left) is found in North America and…

A: Convergent evolution is a process by which distantly related species evolve similar characteristics…

Q: platypus is one of a very small number of mammals that are venomous. Researchers compared the…

A: Most important part in this paragraph is that the two proteins are almost similar in function and…

Q: Using an example scenario, please explain the three conditions required for a trait to be under the…

A: The process in which a population of living organisms change and adapt themselves as per the current…

Q: which one is true. Consider this claim: "If a card has a shark on one side, then it has a…

A: A trait is a particular, distinguishable quality or attribute of a person or an organism. Physical…

Q: Which of the following best explains why coalescent-based phylogenetic inference is important in the…

A: Need to find which one of the following is true from the following options related to…

Q: ould two species with similar traits have similiar genomes? Why?

A: Some species are able to successfully breed with each other and but different species are…

Q: Pseudomonas Алхидейша E. Coli мусорвията Pneumonia Clostridium Botulinum 79% 65% 52%

A: The history of the events by which species of other taxa successively evolve from their common…

Q: The matrix below provides information about each candy 'species. Each column represents a candy…

A: Gradual process of growth and development is evolution. It has helped the species to develop into a…

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A: Genetic drift is a mechanism of evolution that causes changes in the frequencies of alleles in a…

Q: Assume you are studying development in two species of iguana. You determine that a certain gene,…

A: The answer is d heterochrony

Q: Three species are endemic to a group of islands and are all descended from species 4, a large…

A: Natural selection is an evolutionary process through which natural factors ensure the survival of…

Q: Some strains of bees show hygienic behavior by uncapping cells con-taining larvae infected with a…

A: Insects are the most diverse group of animals belongs to class Insecta. They represent more than…

Q: aturalist visiting an island in the middle of a large lake observes a species of small bird with…

A: Genetics is the scientific study of genes and heredity—of how certain qualities or traits are passed…

Q: Why is the intermembral index (IMI) of a biped similar to that of a vertical clinger and leaper?

A: Bipedal animals are creatures that walk on two legs. Some wellknown examples include humans birds,…

Q: It has been hypothesized that population size affects genome size. What is the proposed…

A: The sum of DNA in a haploid genome is expressed as the number of base pairs, kilobases (1 kb = 1000…

Q: You conduct an RFLP analysis of head weight in one strain of cabbage;you determine that seven QTLs…

A: Introduction  Any phenotypic character is controlled by the genes either it can be single gene or…

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A: dN/dS ratio tells us about the evolutionary pressure of selection on a gene coding for a protein and…

Q: It was later discovered in Cliff Tabin’s lab that a gene called Bmp4 involved in cell-cell signaling…

A: The principle of genetic equilibrium states that relative frequencies of various kind of genes in a…

Q: In the fly speciation experiment described in class, Drosophila from a single culture was split into…

A: The evolution of a new species from an existing one due to various events is called speciation. The…

Q: How can we detect recent strong selection in the human genome? Explain using the recent positive…

A:

Q: You become interested in monarch butterfly conservation and begin investigating milkweeds (genus…

A: The initial stage in the construction of a phylogenetic tree involves the meticulous analysis of DNA…

Q: Below is an aligned DNA sequence dataset for three species and their outgroup. Draw the maximum…

A:

Q: In a DNA-hybridization study, DNA was isolated from wheat, labeled with 32P, and sheared into small…

A: The genetic information can be stored in the form of deoxyribonucleic acid (DNA) in the living…

Q: Sketch the pH speciation diagram for asparagine for the range of 1 < pH < 12, annotate with the…

A: Asparagine is aliphatic, polar uncharged amino acid with carboxamide in its side chain. It is…

Q: Swordtails, platyfish and Poecilia species are incapable of interbreeding with each other but…

A: Biological species defines the ability of two organisms to mate and produce offspring successfully…

Q: You want to make a phylogenetic tree of a group of three related species of lizards that live on an…

A: Evolution is any alteration in the "heritable characteristics" of the population. These…

Q: A vestigial trait in species A is a trait that is functional in a closely related species B, but…

A: A vestigial trait is that kind of a trait that has partially or fully lost its functionality over…

Q: each candy species . Each column represents a candy trait, with I's meaning the candy bar has that…

A: A diagram that shows the evolutionary relationship between the different organisms, species, and…

Q: Your descendants have fortunately inherited your fascination with rodent genetics. Fifty thousand…

A: The given DNA sequences from randomly chosen individuals from the two populations are : A1   ATAAGA…

Q: Based on the molecular data, which species is most closely related to humans? A) lemur catta (lemur)…

A: Sequence analysis refers to the computational analysis of DNA, RNA and peptide by comparing their…

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.