Use the information below to answer the next question. Observe the three species of fruit fly and their evolutionary relationships in the tree below: Fly species 1 Fly species 2 Distant relative 所 MRCA of fly species 1 & 2 1 Note that the three fly species have the following characteristics: Fly species 1: white eyes, lots of leg bristles, striped wings Fly species 2: red eyes, lots of leg bristles, striped wings Distant relative: white eyes, lots of leg bristles, plain wings Q3. What are the most likely characteristics of the most recent common ancestor (MRCA) of fly species 1 and fly species 2, labeled in the diagram above? Lots of leg bristles: can't tell on the other two traits Lots of leg bristles, striped wings, can't tell on eye color Lots of leg bristles, striped wings, red eyes Lots of leg bristles, striped wings, white eyes In the diagram below, the four living lizard species on the right are descended from the extinct common ancestor on the left. Traits that evolved include: homs, spots, back crest, tail crest, and dewlap (flap under the chin). Use this information to answer the next question MacBook Pro Q1. Which of the following terms best describes the place in an evolutionary tree that represents a current living population? Node O Branch Root ОТір MAN WIN RNANDO Q2. Which of the following is the most appropriate way to determine how closely related two groups are using an evolutionary tree? O Counting the number of nodes between the groups of interest. Counting the number of other groups between the groups of interest. O Looking at the first (earliest) common ancestor of the two groups Looking at the last (most recent) common ancestor of the two groups. ) Submit Use the information below to answer the next question. Observe the three species of fruit fly and their evolutionary relationships in the tree below: Distant relative Fly species 2 Fly species | ed Questions Flowers and Trees In the diagram below, the four living lizard species on the right are descended from the extinct common ancestor on the left. Traits that evolved include: homs spots, back crest, tail crest, and dewlap (flap under the chin). Use this information to answer the next question. HARI Q4. Which of the following phylogenies represents the most likely evolutionary relationships among the four living species? MacBook Pro Graded Questions Flowers and Trees Submit carry a variety of non-functional genetic sequences, called processed pseudogenes, i humans, processed pseudogenes in Questions Flowers and Trees Q5. Humans carry a variety of non-functional genetic sequences, called processed pseudogenes, in their DNA. We can estimate how long ago these sequences first appeared in the genomes of our ancestors. In humans, processed pseudogenes include the three options below. Which of these would be most widespread among other primate species? O alpha-enolase psiy (11 million years old) ООО O AS psiz (16 million years old) CALM Il psig (36 million years old) Submit INHNENKRAN Q6. Which of the phylogenetic (or evolutionary) trees below show the same evolutionary relationships among species? X X Z Y A) B) Z N х Y X - D) C) Trees A and B Trees A and C Trees A and D Each of these phylogenetic trees represents a unique set of relationships among the species. MacBook Pro
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