Document2 Word Insert Design Layout References Mailings ReviewView Help B 1 u-al

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Document2 Word Insert Design Layout References Mailings ReviewView Help B 1 u-alxx, x' A··A-I !!: . Body Terttut Para-11No Spa- P te, Painter 1Nonnal Heading 1 Heading 2 Font Paragraph Styles 1. Protein A is expressed in the brain and is known to be involved in synaptic transmission. Which of the following is/are an example(s) of adaptive mutation(s)? Choose al.of the answers that apphy a A mutation in the non-coding region of protein A that enhances its expression in the brain b. A mutation in protein A that generates the same protein c. A mutation in protein A that decreases its expression in the brain. d. A mutation in protein A that produces a truncated version of the protein. 2 You are working in the field and discover a species of butterfly that looks very similar to the horse spider. Provide a possible reason why this butterfly may have evolved to resemble the horse spider 3. Reromxscus palionatus is a species of olsdfield mice that recently (6,000-10,000 ybo) invaded the islands off of the coast of northwestern Florida. Mice that live on the mainland are dark brown, matching the dark, loamy soil, while the subspecies of mice that live on the white sandy beaches have much paler coloration. Briefly explain how the lighter coloration in the mice evolved 4. Ecology is the study of the interactions within a system. Which of the following examples show how ecological factors can drive natural selection? Choose all of the answers that a. Plants that require high volumes of water have low reproductive success during a drought b. Two species of beetles compete for food c. A plant that releases metabolites attracts pollinators. d. None of the above. 5, Could two species of ants that do not interact with each other, but live in the same on each others evolutionary history? Briefly explain.

Explanation / Answer

1. a. A mutation in the non-coding region of the protein A that enhances it's expression in the brain.

b. A mutation in protein A that generates the same protein

These are the changes caused by mutations to improve the organism's chance of survival. Adaptive mutation states that rather than mutations and evolution being random, they are in response to specific stresses. In other words, the mutations that occur are more beneficial and specific to the given stress, instead of random and not a response to anything in particular. It should be noted that the term stress refers to any change in the environment, such as temperature, nutrients, population size, etc.

2. This is an example of evolutionary mimicry. The dazzling colours and patterns on their wings make butterflies some of the most eye catching creatures in the animal kingdom, but these dramatic changes help turn the insects into master illusionists capable of fooling potential predators. Often, mimicry evolves to protect a species from predators, making it an antipredator adaptation.

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