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What is Muller’s ratchet?

Is evolution random? The answer is No! and I hope you now understand that some evolutionary forces are random, but some are not. Therefore, and as a result, evolution is not random.

There are some animals that perform courtship behaviors like the male birds of paradise that dance to attract female birds of paradise. Select the benefit(s) the males face in doing these types of behaviors? Select all that apply

This is another bonus question: “Evolution only occurs slowly and gradually”. The answer is False. And you know it is because we covered migration and how it can produce instantaneous evolution by changing the allele frequencies. 

And your third bonus question: Ok, let’s do some math. Calculators and scratch paper: here we go!

Your grade for this class come from assignments. Which type of assignments? Please select all that apply. Partial credit is given, but if you select more than the correct answer choices points will be deducted.

Throughout your classes (even in Genetics), you have learned that synonymous mutations do not change the amino acid sequence. This means that these silent changes should be neutral with respect to fitness. Therefore, it implies that codon usage should be random. But, in some cases, it is not random and that’s why mutations are not entirely random (and the reason I’ve been referring to them as random-ish). This phenomenon of codon usage that is not entirely random is called

Choosy females may win double by finding a mate that provide resources.

Genetic drift

Which of the five mechanisms that drive evolution is the most likely mechanism that explains molecular evolution according to Dr. Motoo Kimura?