The "molecular clock" of the rate of change in a segment of DNA during evolution depends on which of the following? (select all that apply) • A process called purifying selection • Whether that DNA contains functionally important sequences • Whether the DNA can be easily sequenced • The structure of the RNA molecule produced from that DNA The rate that mutations occur in that species or type of DNA Message @ProBot ✨

The "molecular clock" of the rate of change in a segment of DNA during evolution depends on which of the following? (select all that apply) • A process called purifying selection • Whether that DNA contains functionally important sequences • Whether the DNA can be easily sequenced • The structure of the RNA molecule produced from that DNA The rate that mutations occur in that species or type of DNA Message @ProBot ✨

Biology Today and Tomorrow without Physiology (MindTap Course List)

5th Edition

ISBN:9781305117396

Author:Cecie Starr, Christine Evers, Lisa Starr

Publisher:Cecie Starr, Christine Evers, Lisa Starr

Chapter6: Dna Structure And Function

Section: Chapter Questions

Problem 1CT

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A scientilic field that deals with the computational manogement and analysis of bialogical data to provide visual representations of the properties and evolution of genes the genomes, the proteins, and the metabolic pothways in cells. | Locks for a predelined string of characters in plant sequences. Bloinformatics tool used for multiple sequence olignments. sa multidisciplinary reseorch group that serves as a resource far molecular biology information. You con answer using the abbreviation. The primary databose retrieval system at NCB A simple text format that is commonly used by many bioinformatics software. A nucleic acid sequence databose that contains sequence information. An online tool that pertormas pairwise comparisons of query sequences with available sequences across all databases in the National Center for Blotechnology Information NCBI BLAST Bioinformatics Genex FASTA Centonk Chlorol Entrez Clustolw NNPREDICT
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?
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
Geneticists can synthesize any gene—any stretch of DNA—desired. Suppose you use a tree of genome evolution to predictthe structure of a now nonexistent, ancient gene. What insightsmight you obtain by synthesizing the ancient gene and insertingit into a living animal?
The ability of genomes to respond to the outside environmentby changing the developmental trajectories of organisms opens up entire worlds of research. Is evolution selecting “teams” of organisms?
Which of the following statements about genomes is TRUE? 1.Approximately 50% of the human genome is comprised of repeated sequences such as mobile genetic elements and segment duplications. 2. Modern-day chloroplast and mitochondria have their own genomes that contain all the gene sequences required to independently carry out their functions. 3There is a direct relationship between an organism's complexity and physical size and the size of its genome. 4.The human genome was completely sequenced in the early 2000s.
Part 3: Molecular Evolution Exercise Below are reported nucleotide sequences for an intron in the same gene for 4 different species of animals. A CCTAAT ACCI :CGCC AG B CCTAATACTACCTA 90G C CCTATCCAC. TGTATAC D CCTCAC PETCTGTTCO
7 of 15 From the list below identify the most suitable software used to visualize a change in amino acid on a protein structure: O Jalview, O Uniprot Database. O Ensembl Neanderthal genome. O NCBI database. O Ensembl Human Gr38. OPDB database. OBLAST. O Ancient Genome Browser. O Ensembl Human Gr37. O SNPdb database of human mutations. O Chimera.
What is DNA fingerprinting? what is its application/s (legally and medically) and limitation/s? How does this technology work? i.e in genomic DNA identification? What is its molecular basis? How does molecular biology paved way for the emergence of this technology?
DNA sequences can act as "tape measures of evolution". Scientists analyzing the human genome sequence were surprised to find that some regions of the human genome that are most highly conserved (similar to comparable regions in other species) don't code for proteins at all. Given what you've learned about "genes" speculate on reasons why this might be so.
Humans and chimpanzees share about 98% of their DNA. What is DNA? What might be the role of regulatory genes in producing the anatomical differences between these two lineages? Give two examples of how the field of genetics has revolutionized biological science. What is polymerase chain reaction (PCR) and why is it important in genetics?
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.