Vhich of the following is FALSE about homology? Homology refers to traits inherited from a common ancestor Homology is inferred when sequences are more alike than by random chance Homologous traits refer to having the same structure and function Homology is the most parsimonious explanation for sequence similarity All of the abovo aro TRUE

Vhich of the following is FALSE about homology? Homology refers to traits inherited from a common ancestor Homology is inferred when sequences are more alike than by random chance Homologous traits refer to having the same structure and function Homology is the most parsimonious explanation for sequence similarity All of the abovo aro TRUE

Biology: The Unity and Diversity of Life (MindTap Course List)

15th Edition

ISBN:9781337408332

Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr

Publisher:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr

Chapter18: Organizing Information About Species

Section: Chapter Questions

Problem 13SQ: All of the following data types can be used as evidence of shared ancestry except similarities in...

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Humans carry a variety of non-functional genetic sequences, called processed pseudogenes, in their DNA. we can estimate how long ago these sequences first appeared in the genomes of our ancestors. In humans, processed pseudogenes include the three options below which would be the least widespread among other primate species a. alpha-enolase psi1 (11 million years old) b. AS PSI 7 (16 million years old) c. CALM II PSI3 (36 million years old)
When comparing genomes from 2 different organisms, "regions of synteny" refers to...• Whether the number of chromosomes is similar• blocks of sequence where the same genes are present in the same order• Alleles that are inherited together without following the Law of Independent Assortment• Segments that contain genes present in one organism but absent in the other• Regions with 100% sequence similarity
Rates of evolution appear to vary in different lin-eages. For example, the rate of evolution in the rat lineageis significantly higher than in the human lineage. Theserate differences are apparent whether one looks at changesin nucleotide sequences that encode proteins and are sub-ject to selective pressure or at changes in noncoding nucle-otide sequences, which are not under obvious selectionpressure. Can you offer one or more possible explanationsfor the slower rate of evolutionary change in the humanlineage versus the rat lineage?
A scientist is attempting to a cladogram that shows the evolutionary closeness of three organisms in relation to humansAfter doing DNA analysis, they that the organisms share the following percentages of DNA Organism A and humans share 85% of their DNA Organismn and humans share 80% of their DNA Organism and humans share 90% of their DNA Based on informationwhich order should they go on the cladogram ( related to most related ?
What is the main point this research "Molecular origins of rapid and continuous morphological evolution "? And, describe the experiments they did, the results and ramification of those results? https://www.pnas.org/content/101/52/18058
Here is some information about the sequences: All these sequences, “SEQUENCE_21” to “SEQUENCE_27” are in the same subfamily or “clade” of a large phylogenetic alignment of all Rab proteins in these three species (see “Figure 1.pdf” for a full view of gene family in humans, plants and yeast, see the “D” branch towards the bottom of the tree in Figure 1). “SEQUENCE_28” is a different Rab protein (actually it is the Rab39 protein at the bottom of the tree). “SEQUENCE_21” is from yeast. “SEQUENCE_22” to “SEQUENCE_25” are from the plant, Arabidopsis. “SEQUENCE_26” and “SEQUENCE_27” are from humans. Question: Based on the information above, what can you speculate about the possible evolution of the genes that “SEQUENCE_21” to “SEQUENCE_27” represent? (write 5 points at least).
(top or bottom) Species A, B, C, D, and, E are all extant species (living today; not to be confused with “extinct” species). Consider the common ancestor shared between humans and species A (ancestor A-H), the common ancestor between species B and humans (ancestor B-H), etc. Which of thetwo trees below best represents the phylogenetic relationship between species shown in the nucleotide divergence plot above (top tree or bottom tree)?
Molecular marker is used to determine relatedness of species which may directly or indirectly exerts an effect on diversity. A hypothetical ancestor has the following DNA sequences: G A A G C T A T T C A T T. There are two lineage with DNA sequences of G A A G G T A T T C T C G, and G A A C C T A T T C T G C. (1) Determine the percentage of A and T in the DNA sequence of the hypothetical ancestor. (2) Calculate the percentage of each nitrogenous base in the second lineage.
Count the instances where there is any difference in the amino acid in the alignment of the six sequences and write that number below. Did you find any clades in this alignment? Describe your results. You must describe in detail the relationships between the sequences in this tree. Describe in detail how this combined tree changed the relationships between the sequences in comparison to the two separate trees that you created in the previous section above
Natural selection predicts that two species that came from a common ancestor should have high degree of correlation in their genomes. what aspect (use) of correlation am I using when apply it for this purpose?
The presence or absence of a trait of interest in a lineage is said to be an uninformative character for a phylogenetic reconstruction when the number of changes for that trait - A. occurs only in the outgroup and in one ingroup species. B. is the same for any hypothetical tree. C. is always different for any hypothetical tree. D. occurs only in the outgroup but not in any ingroup species.
Because all known living organisms share a common system for storing and utilizing genetic information, it would suggest: that all life forms on Earth share a common ancestor that the study of one organism’s genes may reveal principles that apply to other organisms thatgenesfromoneorganismcouldpossiblyfunctioninanotherorganism that all of the above ideas (1-4) are likely