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.

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.

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter16: Reproductive Technology, Genetic Testing, And Gene Therapy

Section: Chapter Questions

Problem 14QP: Is gene transfer a form of eugenics? Is it advantageous to use gene transfer to eliminate some...

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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
The mutations which are of greatest importance to the process of evolution are those which are classified as: O spontaneous, germinal, gene mutations induced, germinal, gene mutations induced, somatic, chromosomal mutations O induced, somatic, gene mutations spontaneous, somatic, gene mutations
The most important feature that enables a gene to act as a molecular clock is Group of answer choices: a recent origin by a gene duplication event a large number of base pairs in the genome being acted upon by natural selection a reliable average rate of mutation
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
Evolution happens over time through mutations at the chromosomal and nucleotide levels. Mutations can be beneficial, neutral, or harmful. Most mutations are neutral. Describe 6 different types of mutations that can occur at the chromosomal and nucleotide levels. Make sure to include 3 types of each.
Which statement about molecular clocks is false? They must be calibrated with independent sources of data. They can be developed using amino acid sequence data. They are used to estimate the timing of past evolutionary events. They can be used for recent dates as well as for ancient dates. They display the same rate of change for all DNA molecules.
Point mutations, like the single-nucleotide substitution in human sickle-cell trait, illustrate which of the following evolutionary features? mutations are never detrimental and always advantageous, regardless of the environment mutations might be either advantageous or detrimental, depending on the environment mutations are always detrimental and never advantageous, regardless of the environment mutations are neither advantageous nor detrimental, regardless of the environment mutations are always both advantageous and detrimental, regardless of the environment
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.
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
When the DNA sequence of the gene that codes for the peptide hormone insulin is compared in two mammals (e.g., humans and rats), most of the sequence differences are synonymous mutations. These far outnumber sequence differences that result in amino acid substitutions. Why might this be? A DNA sequence is more likely to mutate if the change does not alter the amino acid sequence. Most amino acid substitutions result in a beneficial phenotype that improves fitness and results in a greater number of offspring. Synonymous mutations occur in noncoding DNA sequences. mutations are random with respect to an organisms needs. Amino acid substitutions often result in proteins that have lost or compromised function and, therefore, are selected against. 00000
Describe the signiicance of mutations in terms of evolution.
Black lava rocks only appeared in the desert about 1000 years ago. If the first dark-colored rock pocket mouse had a 10% advantage, about how long would it have taken for nearly all of them to have dark-colored fur? Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a 10,000 years. 1000 years. 100 years. It depends on how fast new mutations occur. This cannot be estimated because evolution is random. Fullscreen

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		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.