Flowering plants have common ancestors with other plants and plant-like organisms. The table below shows the last common ancestor shared between flowering plants and two other types of organisms. Last common ancestor with flowering plants Cone-producing plants 250 million years ago Green Algae 500 million years ago A scientist compares the amino acid sequences of a protein produced by flowering plants, a cone-producing plant, and green algae. What prediction about these sequences is supported by the data in the table? O The amino acid sequences for flowering plants and cone-producing plants will be the most similar. O The amino acid sequences for all three organisms will be identical. O The amino acid sequences for flowering plants and green algae will be the most similar. O The amino acid sequences for all three organisms will have no similarities.

Flowering plants have common ancestors with other plants and plant-like organisms. The table below shows the last common ancestor shared between flowering plants and two other types of organisms. Last common ancestor with flowering plants Cone-producing plants 250 million years ago Green Algae 500 million years ago A scientist compares the amino acid sequences of a protein produced by flowering plants, a cone-producing plant, and green algae. What prediction about these sequences is supported by the data in the table? O The amino acid sequences for flowering plants and cone-producing plants will be the most similar. O The amino acid sequences for all three organisms will be identical. O The amino acid sequences for flowering plants and green algae will be the most similar. O The amino acid sequences for all three organisms will have no similarities.

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter13: An Introduction To Genetic Technology

Section: Chapter Questions

Problem 2CS: Improving the nutritional value of food has long been one of the goals in agricultural genetics....

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A group of researchers are trying to determine the relationship between various groups of organisms. The researchers analyze the amino acid sequence of the protein cytochrome c in various groups of organisms. Once they sequence cytochrome c in all organisms, they determine the number of amino acid substitutions in each group. The results can be seen in the graph below, which plots the data with respect to the time since the divergence of the members of paired groups from a common ancestor. A B mammals and reptiles с Number of Amino Acid Substitutions (per 100 amino acids) in Cytochrome, c D 60- 50+ 40+ 30- 20+ 10+ 0 0 O birds and reptiles A graph showing when various groups of organisms diverged from a common ancestor Based on the graph above, can you conclude which of the following organisms are most distantly related? 200 400 600 800 1,000 Time Since Divergence from a Common Ancestor (millions of years) fish and land vertebrates mammals and reptiles birds and mammals insects and…
If you are to compare the genetic sequences between monkeys and fungi, what molecular sequence are you going to use? Why? How about comparing genetic sequences of monkeys to humans, what genetic sequence will you use? Provide an explanation.
A researcher studying two species (species 1 and species 2) sequences a short stretch of eight codons from the same gene, gene B, in each and compares them. Species 1 and species 2 had a most recent common ancestor 50 million years ago. Species 1: ATC GGG CGG GAC TTA CTA TAT GCC Species 2: ATT GGG CGG GAC TTG CTA TAT GCC Given the differences between the sequences of the two species' genes shown here, what evolutionary force can you predict is most likely in operation on gene B?
Transfer RNA (after becoming “charged” with an amino acid) contains which of the following covalent bonds that are absent in all other forms of RNA? the glycosidic bond the phosphodiester bond the hydrogen bond the aminoacyl bond the peptide bond The green sea slug carries the genes for synthesizing chlorophyll (apparently acquired from the chloroplasts of green algae), illustrating which type of genetic change leading to evolution? horizontal gene transfer gene deletion gene duplication mutation exon shuffling
Just as anatomical homology can lead to vestigial structuressuch as human wisdom teeth and the wings of flightlessbirds, genetic homology can lead to vestigial DNA sequences.For example, most mammal species produce an enzyme,L-gulonolactone oxidase, that catalyzes the last step in the productionof vitamin C. The species that produce the enzyme areable to do so because they all inherited the gene that encodesit from a common ancestor. Humans, however, do not produceL-gulonolactone oxidase, so we can’t produce vitamin C ourselvesand must consume it in our diets. But even though wedon’t produce the enzyme, our cells do contain a stretch of DNAwith a sequence very similar to that of the enzyme-producinggene present in rats and most other mammals. The human version,though, does not encode the enzyme (or any protein). Weinherited this stretch of DNA from an ancestor that we share withother mammal species, but in us, the sequence has undergonea change that rendered it nonfunctional. (The…
A cladogram shows the evolutionary relationship between humans, chimpanzees, and gorillas. The cladogram currently shows humans and chimpanzees with a more recent common ancestor compared to gorillas. Which piece of evidence, if true, would most likely weaken this hypothesis? Amino acid analysis of the cytochrome shows significant differences in the sequence of amino acids between humans and goriffas. DNA sequence analysis of the hemoglobin alpha gene shows that humans and chimpanzees have a more similar sequence to each other than they do to the gorilla's DNA sequence. The cells of the eye in embryos of gorillas and humans follow a similar pattern of development chimpanzee embryos are different Fossils of humans appear in deeper sedimentary rock layers compared to fossils of chimpanzees.
a rice species low high diverged six five whole genomes gene families homologous genes Duplication a new function gene order stayed the same common ancestor Genes that are essential for survival usually have mutation rates. of an essential gene results in two copies in the genome. One copy may retain the original function while the other copy is free to evolve Duplications of genes and their subsequent alteration is thought to be the basis for or groups of similar genes with slightly different functions.. One gene, several genes, or even the can be duplicated. All cereal grasses (including rice, wheat, barley, sorghum, and corn) have blocks of that are located on two separate chromosomes. Within the blocks, is conserved, but the DNA sequences have The evidence suggests that all cereal grass species evolved from a with 12 chromosomes that are derived from a whole genome duplication in a species with chromosomes followed by other chromosome rearrangements and divergence. Reset
DNA-sequencing studies for a gene in two closely relatedspecies produce the following numbers of sites that vary:Synonymous polymorphisms 50Nonsynonymous polymorphisms 20Synonymous species differences 18Nonsynonymous species differences 2Does this result support neutral evolution of the gene?Does it support an adaptive replacement of aminoacids? What explanation would you offer for theobservations?
The table below shows short DNA sequences from a gene in a closely related group of dragons, as well as their close relative, the Winged Ground Lizard. Assume each change in the DNA sequence evolved only once. Draw a phylogenetic tree that represents the relationship among the dragon species, as well as the Winged Ground Lizard. Indicate the locations on the tree where there is a change in the DNA sequence and indicate the site position and what the change is
Asian tiger mosquito Trace its origin and evolutionary history or changes in the species. Describe its structures and their functions. What is the importance of this species to our environment? Give trivia about this species. Does this organism produce oxygen? Explain. What are the ancestral species of your chosen organism? Has this species been genetically engineered? If yes, in what way? How does this species reproduce? What organisms have similar structures to this species? Do these structures have the same function? Does the species have tissues, organs, and/or organ systems? What is its role in the flow of energy? Give at 15 least a sentence to each question.
Researchers studied the effects of artificial selection on largemouth bass. The fish are bred in fisheries to have the desired trait of a high vulnerability rate (HVR) so they are easily caught by human anglers, and then released in artificial ponds and lakes that allow recreational fishing. Within three generations, a fishery can produce a population saturated with members that have the HVR trait in the study. Researchers compared the health of three groups of fish, as measured by the time it took them to recover after exercise: fish with HVR, fish with a low vulnerability rate (LVR), and a control group of wild fish. Each groups' cardiac output, heart rate, and stroke volume are represented in the graph. 85 80 75 70 65 60 55 50 Control LV HV Group of Fish Does the practice of artificial selection in fisheries of largemouth bass for a greater frequency of members with HVR affect the variability in their heart rate, and why? No, artificial selection produces fish with the HVR trait…
Which statement about genome evolution is false? Mutations at the ends of introns are less likely than in the middle of an intron. Synonymous mutations rates are much higher than nonsynonymous mutation rates. Psuedogenes show high rates of mutations. Comparison of the mutational change in a specific gene can be used as a molecular clock to date evolutionary events between species. Evolution in a gene sequence will occur the fastest in regions that have the greatest effect on function.