8) Each of the observations provides evidence that supports the idea of common ancestry and evolution.   Which one is from the field of molecular biology?   A) Mammals have two openings in the skull behind each eye socket, whereas reptiles and bird only have one opening.   B) DNA analysis shows that the DNA of Neanderthals is more similar to the DNA of non‑African humans than that of Africans.   C) Two closely related but distinct species of squirrels inhabit the north and south rims of the Grand Canyon.   D) The embryos of both birds and mammals divide in a radial cleavage pattern instead of a spiral cleavage pattern present in insects.

Q: Dr. Olivera describes how cone snail shell similarities are a proxy for relatedness but describes…

A: False.

Q: How does the fact that all ethnic groups except Africans contain some Neanderthal DNA (1–4 percent…

A: Modern humans (Homo sapiens) were evolved in Africa around 2,00,000 years ago during the…

Q: Which node, 1-8, represents the most recent common ancestor of the Gray Wolf and the Domestic dog?…

A: Monophyletic taxon is one that includes the most recent common ancestor of a group of organisms…

Q: You compare two strands of mtDNA and discover that there are 3 differences in base pairs between…

A: The mitochondrial DNA (mtDNA) is uniparental in nature and it is transferred from mother to daughter…

Q: Select all the possible evidence that can be use to support the Theory of evolution 1. Fossil…

A: The process of organisms changing over time is known as evolution.

Q: If a sequence from another species showed a 96 percent sequence similarity to humans, would that…

A: Introduction  DNA and RNA are the main genetic material found in all the species irrespective of…

Q: If mutations such as those of the Ubx gene candrastically change morphology in a single step,why do…

A: Ubx (Ultrabithorax) gene codes for Ubx protein in Drosophila and it helps to prevent wing formation…

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: If myoglobin is found in all chordates, urochordates, and cephalochordates, b-globin is found in all…

A: The globins represent the superfamily that includes globular proteins that contain a heme prosthetic…

Q: What materials will be needed to evolve a tiger or any type of organism that is similar to a tiger?

A: The tiger belongs to the Panthera genus and represents the largest surviving cat species. It can be…

Q: 1a) How do the events surrounding the Peppered Moth during the industrial era in Great Britain…

A: As per our guidelines, we are supposed to answer only one question. Kindly repost the other question…

Q: Most hominin species, including Homo sapiens, arose in Africa. It is sometimes possible to extract…

A: Hello. Since your question has multiple parts, we will solve the first question for you. If you want…

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: How do you think researchers and paleontologist determine where fossils of hominins are buried?…

A: In hominoid fossils changes from an ape-like structure may be seen. Paleoanthropologists believe…

Q: Anatomically Modern Homo sapiens can be distinguished from Homo sapiens neanderthalensis based upon…

A: Ans:-The presence of a chin(mental eminence) is a trait that uniquely  characterizes Anatomically…

Q: Explain briefly the following sources of evidence of evolution. Write your references below. 1.…

A: Evolution is a process that took many years to form the present day species. The original species…

Q: Can you explain how the structural and developmental characteristics and relatedness of DNA…

A: Answer:              The sequence knowledge is used to decide which stretches of DNA contain genes…

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: How do molecular biology explain the evolution of life?

A: Molecular biology It is the science that studies the molecular basis of biological activity in and…

Q: What is both the physical and cultural evidence that Homo sapiens nenaderthalensis is an ancestral…

A: Our nearest ancient human predecessor is the Neanderthal. The big central region of their faces,…

Q: Approximately 98% of the information in human DNA is shared by chimpanzee DNA. This is evidence of…

A: Molecular evidence for evolution determines the genetic similarity between the species and proves…

Q: What role do the fossils named “Ardi” and “Lucy” play in the reconstruction of human evolutionary…

A:

Q: Define the neutral theory of molecular evolution ?

A: BASIC INFORMATION EVOLUTION The theory of evolution was first given by the Jean Baptist de Lamark.…

Q: Why was noncoding DNA previously called 'junk DNA' and why is the term no longer considered…

A: Deoxyribonucleic acid is a molecule composed of two polynucleotide chains which coil around each…

Q: COLUMN A COLUMN B COLUMN C E. Development of the anatomy of an organism to its adult form A. Fossil…

A: Fossil record is the history of life as documented by fossils. These are the remains or imprints of…

Q: In 1979, bones found outside Ekaterinburg, Russia, were shown to bethose of Tsar Nicholas and his…

A: Genes that are found on X and Y chromosomes expresses sex linked traits. Males have one X and Y…

Q: In what sense does the universality of the genetic code support the theory of evolution?

A: Because of the genetic code, a lot of very different species have the same genes. Similarities and…

Q: What factors could be responsible for the size differences among modern vertebrate genomes?

A: The complete set of genetic information in an organism is known as genome. It provides all of the…

Q: How, specifically, is the concept of ALLOMETRY relevant to the phylogenetic position of Homo…

A: Introduction : Allometry: It is defined as the relationship between body size and other measurable…

Q: Which of these species is most likely to share the greatest percentage of DNA with your human…

A: Humans or Homo sapiens belong to the genus Homo. We are the only surviving species of the genus…

Q: How does the synthetic theory of evolution incorporate knowledge from Genetics and Molecular Biology…

A: Evolution is the idea of the origin of life. There are several scientists have given several…

Q: Please number your answers 1-5 :) 1. Define comparative anatomy. 2. Define analogous structures. 3.…

A: Evolution Evolution is that branch of biology which deals with the change in the characteristic of a…

Q: Many lethal genetic disorders such as CF, Huntington’s, sickle cell anemia, Tay Sach’s, etc.,…

A: Diseases are thought to persist in human populations primarily because of a balance between…

Q: 39. Which of the following types of traits are considered to be newly evolved features that appear…

A: Transitional fossil are intermediate form between species  they contain features shared by…

Q: what are some (plural) major hallmarks in hominid evoltution?

A: The evolution of modern humans from our hominid ancestor is commonly considered as having involved…

Q: 100. Which of the following hominids is associated with a vertical forehead, canine fossa, rounded…

A: Homo is the genus which arose from the genus of Australopethicus that comprises of various extinct…

Q: The Beringia hypothesis has been accepted for many years, but newer DNA evidence from sagebrush,…

A: The Beringian Standstill Hypothesis, also known as the Beringian Incubation Model (BIM), proposes…

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 is Molecular Similarities of All Life-Forms?

A: The study of living things is called biology. Their morphology, physiology, anatomy, behavior,…

Q: In 1979, bones found outside Ekaterinburg, Russia, were shown to be those of Tsar Nicholas and his…

A: Mitochondrial DNA is the small circular chromosome found inside mitochondria. These organelles found…

Q: There are 27 sequences from 27 individuals belonging to an unidentified group of organisms. Eleven…

A: 1. The description and the accession number were used to identify the probable sequences from the…

Q: What causes evolutionary (genetic) change?

A: Evolution is the gradual accumulation of variations in the existing organisms leading to the…

Q: How does genetic analyses of fossils help us understand human evolution better than just examining…

A: following is description of how genetic analysis of fossils help understanding human evolution…

Q: Who are the fossils “Ardi” and “Lucy”? Elaborate on the roles each played in the reconstruction of…

A: The Ardi is the  female skeleton which is 4.4 million years old, 1.2 million years older than the…

Q: Why is molecular data for phylogenetic inference best analyzed with use of an explicit model of…

A: Answer: Molecular data for phylogenetic tree is the data accumulated which contains the information…

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.