Imagine that you have the DNA sequences fromthe intron of a gene in three species called A, B,and C. Species A and B are most closely related,while C is more distantly related. The sequencesof A and B differ by 18 base pairs, A and C differby 26 base pairs, and B and C differ by 28 basepairs. Fossils show that species A and B divergedabout 1.2 Mya, but there is no fossil evidence asto when the most recent common ancestor ofall three species lived. Use the genetic data toestimate that date. What assumptions are youmaking to get this estimate?

Q: Michael Bunce and his colleagues in England, Canada, and theUnited States extracted and sequenced…

A: A phylogenetic tree is constructed to determine the evolutionary relationships among organisms. It…

Q: Below is a cartoon depicting various geological events, starting with one large island (panel 1) and…

A: The term speciation was first coined by Orator F. Cook, this defines the slow and gradual process of…

Q: Carbon-14 dating works for fossils up to about 75,000 years old;fossils older than that contain too…

A: Radiocarbon dating is a method which will help us estimate the age of objective for carbon based…

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Q: 1. You will notice that some lineages (e.g. the descendants of species 56) branched many times and…

A: Lineage (genetic) markers are any genetic records this is uniparentally transmitted without…

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A: Paleontology is the scientific study of fossils, including their age, formation process, and…

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Q: ylogeny the following questions in the spaces provided v character exhibit evolutionary convergence…

A: 1.When different organisms independently evolve similar charachters , they look similar but are…

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

A: DNA and RNA both made by unbranched linear polymer of nucleotides but..

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

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Q: Atlantic Thorny oyster. Trace its origin and evolutionary history or changes in the species.…

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A: Answer :- The increased availability of oxygen in the atmosphere was an important contributing…

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

A: DNA and RNA both made by unbranched linear polymer of nucleotides but

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Q: 2. Chordate evolution The diagram shown here is sometimes referred to as a cladogram. It shows the…

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Q: The Cambrian Explosion occurred approximately 542 million years ago. During the Cambrian, what…

A: Cambrian explosion, took place between 541 million and approximately 530 million years ago. This…

Q: . DNA sequences in many human genes are very similar to thesequences of corresponding genes in…

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Q: Asian tiger mosquito  Trace its origin and evolutionary history or changes in the species. Describe…

A: Note- we are supposed to answer 3 subpart of a question according to our guidelines.  Please repost…

Q: Scientists on a fossil expedition in the Florida Everglades excavated an area with four strata…

A: Fossils are a good way to study various aspects of evolution and various genetic lineages the help…

Q: (Present) Таxon E Taxon B Taxon C Таxon D Taxon A lineage or clade rapomorhy TIME lineage or clade…

A: A cladogram is an evolutionary tree that represents the ancestral relationship between organisms.…

Q: Present В D 5 10 MYA Genetic Relatedness a. Which two taxa are extinct? The two taxa that are…

A: C) most commin ancestor of A,B,C & D is 3. d) Taxon E can be identical to ancestor 5 as they are…

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: have been evolving separately? a. Cladogram b) Phylogenetic tree c. Molecular clock d. Three-domain…

A: Taxonomy is the branch of science concerned with classifying the organisms in ranks or taxa based on…

Q: If mutations such as those of the Ubx gene

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A: Introduction :- Apomorphy  is a derived trait that is unique to a particular species and all its…

Q: EVOLUTION LINK Examine the cladogram in Figure 30-6a. Based on the discussion in this chapter, what…

A: To explain: The types of data that biologists used to determine the phylogenic relationship given in…

Q: 7 The tree below shows a proposed phylogeny of the three broadest mammal groups. monotremes…

A: Since there are multiple questions in this particular question, I'll answer the first three subparts…

Q: Birds Primates Rodents Fish Amphibians Reptiles Hair / fur Egg shells Amniotic egg Four limbs…

A: Introduction :- According to the central idea of biological classification , all life-forms that are…

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A: Experimental evolutionary evidence always tells us the derivation of descendants from the ancestors.…

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…

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A: Humans inherit the mitochondrial DNA  only from the mother . So inorder to pass the mtDNA through…

Q: ) The apparently constant rate of change     Molecular phylogenetics     Molecular evolution…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

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Q: Convergent evolution occurs when: a. None of these b. Two organisms have a functionally similar…

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Q: Evolutionary theory predicts that species are related, not independent. Four of the following…

A: The end of the Cretaceous period which was about 65 million years ago, was the most prominent of all…

Evolutionary adaptations

Evolutionary adaptation is the process through which organisms adapt or adjust to their surroundings to increase the chances of survival, mating, and reproduction. An organism's behavior, physiology, and structure are adjusted or changed to make it more suited to its environment.