(B) Twenty-four vertebrate LDH proteins arranged into a family tree based on their amino acid sequences Cattle LDH-A KEY Diamonds mark branch points where, on the basis of available evidence, gene duplication A forms Pig LDH-A B forms Rabbit LDH-A C forms occurred. Mouse LDH-A Rat LDH-A Human LDH-A Chicken LDH-A Fax LDH-C Human LDH-C Mouse LDH-C Rat LDH-C Dogfish shark LDH-A Lamprey LDH - Kilifish LDH-A Kilifish LDH-B Kilifish LDH-C Xenopus LDH-B Xenapus LDH-C Xenopus LDH-A Duck LDH-B Chicken LDH-B Pig LDH-B Human LDH-B Mouse LDH-B Number of amino acids modified by mutation
Gene Interactions
When the expression of a single trait is influenced by two or more different non-allelic genes, it is termed as genetic interaction. According to Mendel's law of inheritance, each gene functions in its own way and does not depend on the function of another gene, i.e., a single gene controls each of seven characteristics considered, but the complex contribution of many different genes determine many traits of an organism.
Gene Expression
Gene expression is a process by which the instructions present in deoxyribonucleic acid (DNA) are converted into useful molecules such as proteins, and functional messenger ribonucleic (mRNA) molecules in the case of non-protein-coding genes.
It is becoming possible for molecular biologists to synthesize
almost any protein desired. Suppose you use a phylogenetic tree
of modern-day enzymes (e.g., Figure 2.21B) to predict the amino
acid sequence of a now-nonexistent ancestral enzyme form.
What insights might you obtain by synthesizing the ancestral
enzyme protein?
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
