
Concept explainers
A.
To determine: Whether the given phylogenetic tree supports or refutes the hypothesis that plant hemoglobins arose by horizontal gene transfer.
Introduction: Phylogenetic tree is the branching representation of evolutionary path and relationships among different
B.
To determine: How would the phylogenetic tree look like if the plant hemoglobin genes were originally derived from a
Introduction: Phylogenetic tree is the branching representation of evolutionary path and relationships among different biological organisms. It is made on the basis of similarities and differences in their characteristic features.

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Chapter 1 Solutions
Molecular Biology of the Cell (Sixth Edition)
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- 22. Which of the following mutant proteins is expected to have a dominant negative effect when over- expressed in normal cells? a. mutant PI3-kinase that lacks the SH2 domain but retains the kinase function b. mutant Grb2 protein that cannot bind to RTK c. mutant RTK that lacks the extracellular domain d. mutant PDK that has the PH domain but lost the kinase function e. all of the abovearrow_forwardWhat is the label ?arrow_forwardCan you described the image? Can you explain the question as well their answer and how to get to an answer to an problem like this?arrow_forward
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