Phylogenetic trees that indicate humans are more closely related to lizards than to mice. Introduction: The diagram which represents the evolutionary relationship between organisms is known as phylogenetic tree. The degree and kind of evolutionary distance determine the phylogenetic relationship between organisms.

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Answer 1

Question

Chapter 23, Problem 1QC

Summary Introduction

To determine:

Phylogenetic trees that indicate humans are more closely related to lizards than to mice.

Introduction:

The diagram which represents the evolutionary relationship between organisms is known as phylogenetic tree. The degree and kind of evolutionary distance determine the phylogenetic relationship between organisms.

Expert Solution & Answer

Explanation of Solution

In phylogenetic trees, if two species have a more recent common ancestor then they are more related and if species have a less recent common ancestor than they are less related.

If the phylogenetic tree is rotated about its branch point or node, then the information which it carries does not change. The both phylogenetic trees are equivalent. The difference between both the trees is that the node or branch point shared by both humans and mice is simply rotated in one tree. In a phylogenetic tree, at each branch point the most recent common ancestor species are present.

No, lizards are not, more closely related to humans than to mice as in both the trees, humans and mice share a same node or branch point where they spilt. So the closest relative of humans is mice not lizards.

Conclusion

Mice are more closely related to humans than lizards.

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Question #3: In the KeyGene paper, the authors state that it would be useful if pollen from an apomict would transmit apomixis-inducing genes to the female in the cross (assuming the pollen is viable). Assuming there was just one gene conferring gametophytic obligate apomixis, and that the two parents are inbreds, what would be the consequences of such a cross if: a) The apomixis was a dominant trait? Indicate the genotypes and phenotypes (apomict or non- apomict) of the parents, F1 and F2 generations. Remember to include the expected genotypic and phenotypic ratios (or percentages) in the F1 and F2 generations, and to position the female first (left side) in the parental cross. b) The apomixis was a recessive trait? Indicate the genotypes and phenotypes (apomict or non- apomict) of the parents, F1 and F2 generations. Remember to include the expected genotypic and phenotypic ratios (or percentages) in the F1 and F2 generations, and to position the female first (left side) in the…

Question #5: Assume that two genes are identified that confer gametophytic facultative apomixis in soybean. The genes show independent assortment. Recessive alleles at both loci are required for the facultative apomixis. Facultative apomixis is triggered when the temperature at pollination is above 20 degrees C. At temperatures below 20 degrees C, all reproduction is sexual, independent of genotype. A facultative apomict male, capable of producing viable pollen, was crossed with a sexually reproducing female. Assuming the parents are completely inbred, what are the predicted phenotypic ratios (apomict: non-apomict) for the F1, F2, and DH (F1-derived) generations at each of the following temperatures*: a) 15°C? b) 25°C? *for full credit, show crosses and genotypes where appropriate. Remember to position the female first (left side) in the cross. Type your answer here:

Answer 2

Question

Chapter 23, Problem 1QC

Summary Introduction

To determine:

Phylogenetic trees that indicate humans are more closely related to lizards than to mice.

Introduction:

The diagram which represents the evolutionary relationship between organisms is known as phylogenetic tree. The degree and kind of evolutionary distance determine the phylogenetic relationship between organisms.

Expert Solution & Answer

Explanation of Solution

In phylogenetic trees, if two species have a more recent common ancestor then they are more related and if species have a less recent common ancestor than they are less related.

If the phylogenetic tree is rotated about its branch point or node, then the information which it carries does not change. The both phylogenetic trees are equivalent. The difference between both the trees is that the node or branch point shared by both humans and mice is simply rotated in one tree. In a phylogenetic tree, at each branch point the most recent common ancestor species are present.

No, lizards are not, more closely related to humans than to mice as in both the trees, humans and mice share a same node or branch point where they spilt. So the closest relative of humans is mice not lizards.

Conclusion

Mice are more closely related to humans than lizards.

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Answer 3

Question

Chapter 23, Problem 1QC

Summary Introduction

To determine:

Phylogenetic trees that indicate humans are more closely related to lizards than to mice.

Introduction:

The diagram which represents the evolutionary relationship between organisms is known as phylogenetic tree. The degree and kind of evolutionary distance determine the phylogenetic relationship between organisms.

Expert Solution & Answer

Explanation of Solution

In phylogenetic trees, if two species have a more recent common ancestor then they are more related and if species have a less recent common ancestor than they are less related.

If the phylogenetic tree is rotated about its branch point or node, then the information which it carries does not change. The both phylogenetic trees are equivalent. The difference between both the trees is that the node or branch point shared by both humans and mice is simply rotated in one tree. In a phylogenetic tree, at each branch point the most recent common ancestor species are present.

No, lizards are not, more closely related to humans than to mice as in both the trees, humans and mice share a same node or branch point where they spilt. So the closest relative of humans is mice not lizards.

Conclusion

Mice are more closely related to humans than lizards.

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Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 4

Question

Chapter 23, Problem 1QC

Summary Introduction

To determine:

Phylogenetic trees that indicate humans are more closely related to lizards than to mice.

Introduction:

The diagram which represents the evolutionary relationship between organisms is known as phylogenetic tree. The degree and kind of evolutionary distance determine the phylogenetic relationship between organisms.

Expert Solution & Answer

Explanation of Solution

In phylogenetic trees, if two species have a more recent common ancestor then they are more related and if species have a less recent common ancestor than they are less related.

If the phylogenetic tree is rotated about its branch point or node, then the information which it carries does not change. The both phylogenetic trees are equivalent. The difference between both the trees is that the node or branch point shared by both humans and mice is simply rotated in one tree. In a phylogenetic tree, at each branch point the most recent common ancestor species are present.

No, lizards are not, more closely related to humans than to mice as in both the trees, humans and mice share a same node or branch point where they spilt. So the closest relative of humans is mice not lizards.

Conclusion

Mice are more closely related to humans than lizards.

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Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 5

Chapter 23, Problem 1QC

Summary Introduction

To determine:

Phylogenetic trees that indicate humans are more closely related to lizards than to mice.

Introduction:

The diagram which represents the evolutionary relationship between organisms is known as phylogenetic tree. The degree and kind of evolutionary distance determine the phylogenetic relationship between organisms.

Expert Solution & Answer

Explanation of Solution

In phylogenetic trees, if two species have a more recent common ancestor then they are more related and if species have a less recent common ancestor than they are less related.

If the phylogenetic tree is rotated about its branch point or node, then the information which it carries does not change. The both phylogenetic trees are equivalent. The difference between both the trees is that the node or branch point shared by both humans and mice is simply rotated in one tree. In a phylogenetic tree, at each branch point the most recent common ancestor species are present.

No, lizards are not, more closely related to humans than to mice as in both the trees, humans and mice share a same node or branch point where they spilt. So the closest relative of humans is mice not lizards.

Conclusion

Mice are more closely related to humans than lizards.

Answer 6

Chapter 23, Problem 1QC

Summary Introduction

To determine:

Phylogenetic trees that indicate humans are more closely related to lizards than to mice.

Introduction:

The diagram which represents the evolutionary relationship between organisms is known as phylogenetic tree. The degree and kind of evolutionary distance determine the phylogenetic relationship between organisms.

Expert Solution & Answer

Explanation of Solution

In phylogenetic trees, if two species have a more recent common ancestor then they are more related and if species have a less recent common ancestor than they are less related.

If the phylogenetic tree is rotated about its branch point or node, then the information which it carries does not change. The both phylogenetic trees are equivalent. The difference between both the trees is that the node or branch point shared by both humans and mice is simply rotated in one tree. In a phylogenetic tree, at each branch point the most recent common ancestor species are present.

No, lizards are not, more closely related to humans than to mice as in both the trees, humans and mice share a same node or branch point where they spilt. So the closest relative of humans is mice not lizards.

Conclusion

Mice are more closely related to humans than lizards.

Answer 7

Chapter 23, Problem 1QC

Summary Introduction

To determine:

Phylogenetic trees that indicate humans are more closely related to lizards than to mice.

Introduction:

The diagram which represents the evolutionary relationship between organisms is known as phylogenetic tree. The degree and kind of evolutionary distance determine the phylogenetic relationship between organisms.

Answer 8

Expert Solution & Answer

Explanation of Solution

In phylogenetic trees, if two species have a more recent common ancestor then they are more related and if species have a less recent common ancestor than they are less related.

If the phylogenetic tree is rotated about its branch point or node, then the information which it carries does not change. The both phylogenetic trees are equivalent. The difference between both the trees is that the node or branch point shared by both humans and mice is simply rotated in one tree. In a phylogenetic tree, at each branch point the most recent common ancestor species are present.

No, lizards are not, more closely related to humans than to mice as in both the trees, humans and mice share a same node or branch point where they spilt. So the closest relative of humans is mice not lizards.