If two distantly related organisms have regions of conserved
synteny, what does this mean?
Homework Answers
If two distantly related organisms have regions of conserved synteny, then it means the genes that are examined in the two distantly related species are present in the same order as they are present in their most recent common ancestor.
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If two distantly related organisms have regions of conserved
synteny, what does this mean?
If two...
You are studying the regulatory DNA of a mouse gene expressed in developing heart, liver, and...
You are studying the regulatory DNA of a mouse gene expressed in developing heart, liver, and lung tissue. Your preliminary work has shown that heart and lung expression of this gene is controlled by a short fragment of DNA just upstream of the promoter. Based on this result, you decide to investigate this region further to understand its function. Part A You decide to compare this sequence to the regulatory DNA of the same gene found in rats and humans....
Please match the terms on the left with descriptions on the right to review terminology and...
Please match the terms on the left with descriptions on the right to review terminology and concepts that have arisen from completion of human and model organism genome sequences. (Not all terms have a match.) gene desert Genes in two different species that arose from the same gene In the species' common ancestor. Skipped protein domain Gones that arose by duplication within a single species, often within the same chromosome paralogous genes gene family A discreto functional unit encoded by...
What is a multigene family? What processes produce multigene families? What is a multigene family? O...
What is a multigene family?
What processes produce multigene families?
What is a multigene family? O O O O a group of genes in close proximity to each other on the same chromosome a group of genes in one genome related by descent from a common ancestral gene a group of genes in different organisms related by descent from common ancestral gene a group of genes that can provide the same function through complementation What processes produce multigene families? O...
Exercise: Phylogenetics Terms and Definitions Instruction: Match the terms to their descriptions. Connect each term on...
Exercise: Phylogenetics Terms and Definitions Instruction: Match the terms to their descriptions. Connect each term on the left-hand side to their corresponding description on the right-hand side. Parsimony Refers to a taxon, or a branch of a phylogenetic tree or gene tree, that includes all the species (or genes) that descended from a common ancestor. Cf. paraphyletic, polyphyletic Molecular clock A diagram representing the evolutionary relationships among named groups of organisms, i.e., their history of descent from common ancestors. Outgroup...
and w Two-dimensional gel electrophoresis separates proteins based on a. shape; charge Ob.size; concentration c. concentration;...
and w Two-dimensional gel electrophoresis separates proteins based on a. shape; charge Ob.size; concentration c. concentration; shape O d. size, charge O e. size; shape Refer to the table. Several strains of a bacterium are sequenced to investigate the pan and core genomes. In the table, + denotes presence of the gene and denotes its absence. Gene Gene Gene Gene Gene Strain ! Strain 2 + Strain 3 + Strain 4 + + + + Strain 5 + + What...
1. If two spots have identical Rf values, does that mean that they are the same...
1. If two spots have identical Rf values, does that mean that they are the same identical molecules? Explain why or why not. 2. What value is there in using at least two different solvent systems? How might this be related to question 1. 3. Do some research, and briefly describe the roles of each pigment group in a leaf. Chlorophylls, Carotenes and Anthrocyanins. If the exact function isn’t know, list several of the possibilities.
Question 6 1 pts You compare the genomes of two related species. You find that genes...
Question 6 1 pts You compare the genomes of two related species. You find that genes that regulate developmental processes (the ones that shape how the body forms) exhibit a lot of non-synonymous substitutions, while genes involved in basic cell function exhibit more synonymous substitutions. What does this indicate? The developmental regulation genes have undergone positive selection for changes in function, while the basic cell function genes have undergone purifying selection The developmental regulation genes have undergone purifying selection, while...
INTRODUCTION New mutations that arise on the X chromosome can have different likelihoods of becoming fixed...
INTRODUCTION
New mutations that arise on the X chromosome can have different
likelihoods of becoming fixed in the population than their
autosomal counterparts. This differential likelihood arises because
the effect of a recessive mutation on an autosome is only expressed
in homozygotes, whereas the effect of a similar recessive mutation
that arises on the X chromosome in a male is fully expressed. Thus,
advantageous recessive mutations are more likely to become fixed if
they are on the X chromosome than...
A) The two species, along with their most recent common ancestor, constitute a clade 8) One speties is the descendant of the other 1. whidh f the olowingscie are comidered evolutionary sister gro...
A) The two species, along with their most recent common ancestor, constitute a clade 8) One speties is the descendant of the other 1. whidh f the olowingscie are comidered evolutionary sister groups? C) The two species can be considered more closely related to one another than either is to any other species g gees withac hr than either species does with D) They share more s a third species 2) They share at least one synapomorphy г which ofthe...
How DNA Is Copied 4. What does it mean that the two strands of DNA are...
How DNA Is Copied 4. What does it mean that the two strands of DNA are complementary? 5. What is DNA replication?, 6. Using your notes, book, and this assignment, place the steps of DNA replication in the correct order. a. The enzyme DNA polymerase moves along the exposed strands and adds complementary nucleotides to each nucleotide in each existing strand. b. The DNA double helix breaks or unzips down the middle between the base pairs. C. A complementary strand...
You are studying the regulatory DNA of a mouse gene expressed in developing heart, liver, and lung tissue. Your preliminary work has shown that heart and lung expression of this gene is controlled by a short fragment of DNA just upstream of the promoter. Based on this result, you decide to investigate this region further to understand its function. Part A You decide to compare this sequence to the regulatory DNA of the same gene found in rats and humans....
Please match the terms on the left with descriptions on the right to review terminology and concepts that have arisen from completion of human and model organism genome sequences. (Not all terms have a match.) gene desert Genes in two different species that arose from the same gene In the species' common ancestor. Skipped protein domain Gones that arose by duplication within a single species, often within the same chromosome paralogous genes gene family A discreto functional unit encoded by...
What is a multigene family?
What processes produce multigene families?
What is a multigene family? O O O O a group of genes in close proximity to each other on the same chromosome a group of genes in one genome related by descent from a common ancestral gene a group of genes in different organisms related by descent from common ancestral gene a group of genes that can provide the same function through complementation What processes produce multigene families? O...
Exercise: Phylogenetics Terms and Definitions Instruction: Match the terms to their descriptions. Connect each term on the left-hand side to their corresponding description on the right-hand side. Parsimony Refers to a taxon, or a branch of a phylogenetic tree or gene tree, that includes all the species (or genes) that descended from a common ancestor. Cf. paraphyletic, polyphyletic Molecular clock A diagram representing the evolutionary relationships among named groups of organisms, i.e., their history of descent from common ancestors. Outgroup...
and w Two-dimensional gel electrophoresis separates proteins based on a. shape; charge Ob.size; concentration c. concentration; shape O d. size, charge O e. size; shape Refer to the table. Several strains of a bacterium are sequenced to investigate the pan and core genomes. In the table, + denotes presence of the gene and denotes its absence. Gene Gene Gene Gene Gene Strain ! Strain 2 + Strain 3 + Strain 4 + + + + Strain 5 + + What...
Question 6 1 pts You compare the genomes of two related species. You find that genes that regulate developmental processes (the ones that shape how the body forms) exhibit a lot of non-synonymous substitutions, while genes involved in basic cell function exhibit more synonymous substitutions. What does this indicate? The developmental regulation genes have undergone positive selection for changes in function, while the basic cell function genes have undergone purifying selection The developmental regulation genes have undergone purifying selection, while...
INTRODUCTION
New mutations that arise on the X chromosome can have different
likelihoods of becoming fixed in the population than their
autosomal counterparts. This differential likelihood arises because
the effect of a recessive mutation on an autosome is only expressed
in homozygotes, whereas the effect of a similar recessive mutation
that arises on the X chromosome in a male is fully expressed. Thus,
advantageous recessive mutations are more likely to become fixed if
they are on the X chromosome than...
A) The two species, along with their most recent common ancestor, constitute a clade 8) One speties is the descendant of the other 1. whidh f the olowingscie are comidered evolutionary sister groups? C) The two species can be considered more closely related to one another than either is to any other species g gees withac hr than either species does with D) They share more s a third species 2) They share at least one synapomorphy г which ofthe...
How DNA Is Copied 4. What does it mean that the two strands of DNA are complementary? 5. What is DNA replication?, 6. Using your notes, book, and this assignment, place the steps of DNA replication in the correct order. a. The enzyme DNA polymerase moves along the exposed strands and adds complementary nucleotides to each nucleotide in each existing strand. b. The DNA double helix breaks or unzips down the middle between the base pairs. C. A complementary strand...
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