An actin gene in humans is 92% identical to the homologous actin gene in mice. An actin gene in humans is 80% identical to the homologous gene in yeast. What does this say about how long ago these organisms had a common ancestor?

Q: Flowering plants have common ancestors with other plants and plant-like organisms. The table below…

A: With time and evolution , species that are closely related to one another has similar amino acids…

Q: Flowering plants have common ancestors with other plants and plant-like organisms. The table below…

A: Flowering plants, also known as angiosperms, are a diverse group of plants characterized by their…

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: What are the big differences between eukaryotic (nuclear) and prokaryotic genomes?  How do…

A: Genes are the basic structural and functional unit of heredity. They carry coded genetic information…

Q: researcher studying two species (species 1 and species 2) sequences a short stretch of eight codons…

A: Genes are the hereditary structures on DNA responsible for encoding a particular function/ trait.…

Q: Outline the different rates of evolution that are typically seen in different parts of a…

A: There are certain sites within a protein-encoding gene that are conserved more than the other sites.…

Q: Mammals and prokaryotes use DNA as the molecule of heredity. What does this imply?

A: DNA, or deoxyribonucleic acid, is the genetic material in people and practically any other remaining…

Q: a researcher studying two species (species 1 and species 2) sequences a short stretch of eight…

A: The question includes comparing the sequences of the same gene from two diverse species that had a…

Q: Nucleic acids are isolated and analyzed from different cells in a mammal. How would the DNA sequence…

A: The DNA sequence of a skin cell would be similar to that of a nerve cell. Since, both of them are…

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: A given organism has a gene A that produces a protein, cellular albumen, which traps water within…

A: Genes are the hereditary material made up of DNA, found at a specific location on a chromosome.

Q: An analysis of the human genome revealed that some regions of DNA that are highly conserved across…

A: Evolution has made every species become fit and has provided the species with reproductive fitness ,…

Q: Advances in biotechnology have revolutionized the study of ancient remains. In Ötzi's case, a…

A: Biotechnology is a broad category of current technologies that employ vital organs, cells, or parts…

Q: select the correct options: A) For organisms that diverged  >74 mya, ignore 3rd base positions…

A: Phylogenetic  In biology, phylogenetic is the study evolutionary history and relationships between…

Q: The Miller-Urey experiment is significant because it produced evidence that

A: Answer: Miller-Urey experiment : It is the experiment which suggests that organic molecules needed…

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

A: Globin genes evolved from a common ancestral gene that, after repetitive duplications and…

Q: The genome of what free living organism was first fully sequenced, and when?

A: Introduction:-  The order of DNA nucleotides, or bases, in a genome—the order of As, Cs, Gs, and Ts…

Q: Mammals 10-8 Plants -Invertebrates Bacteria 10-9 Unicellular eukaryotes 10-10 `Archaean 107 108 109…

A: As we have saw in the given graph that bacteria and plants tend to have the much more mutation rate…

Q: When comparing evolutionary similarities between different genes within a gene family, it is usually…

A: A gene is a sequence of DNA that codes for a specific protein. Proteins are the building blocks of…

Q: How many globin genes are present in mammals? What is the evidence indicating that all the globin…

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

Q: Given our knowledge of genome sizes in different organisms, would you predict that Homo sapiens or…

A: The hereditary material that transfers from one generation to another present in the nucleus of the…

Q: Many animals have the p53 gene that makes a protein that regulates the cell cycle and helps prevent…

A: Let us rank the species according to the percentage similarity (Highest similarity -1; lowest…

Q: Fill the blank    New genes can arise during evolution through: (i) exonshuffling, which can alter…

A: Evolution is the process by which population of organisms change over generations. Gene variation…

Q: In mammals, more than one chiasma per chromosome arm is an indication that crossing-over has…

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

Q: How did Spiegelman et al.' s experiments in 1967 & 1970 on the origins of natural selection provide…

A: The RNA World hypothesis would be confirmed if experimental evidence indicated that a completely…

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.