BIOLOGY
12th Edition
ISBN: 9781260169614
Author: Raven
Publisher: RENT MCG
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Chapter 24, Problem 1U
Humans and pufferfish diverged from a common ancestor about 450 MYA, and these two genomes have
a. very few of the same genes in common.
b. all the same genes.
c. a large proportion of the genes in common.
d. no
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Students have asked these similar questions
The challenge in using sequence data to estimate the evolutionary tree for all living things is to find a gene that shows recognizable sequence similarities even between highly distantly related species . Which of the following should NOT be among the features of this gene?
A. The gene subject to strong diversifying selection.
B. It is present in all organisms.
C. It encodes a product whose function is essential.
D. The function of the gene must have remained the same in all organisms.
What is an Analogy?
A) When an anatomic feature is shared among organisms and their descendants
B) When two organisms appear the same
C) When convergent evolution produces similar phenotypes
What is a Homology?
A) When an anatomic feature is shared among organisms and their descendants
B) When two organisms appear the same
C) When convergent evolution produces similar phenotypes
Chapter 24 Solutions
BIOLOGY
Ch. 24.1 - Prob. 1LOCh. 24.1 - Prob. 2LOCh. 24.1 - Prob. 3LOCh. 24.2 - Prob. 1LOCh. 24.2 - Prob. 2LOCh. 24.2 - Prob. 3LOCh. 24.2 - Explain why genome size and genome number do not...Ch. 24.3 - Define the terms segmental duplication, genome...Ch. 24.3 - Prob. 2LOCh. 24.4 - Prob. 1LO
Ch. 24.4 - Prob. 2LOCh. 24.5 - Prob. 1LOCh. 24.5 - Prob. 2LOCh. 24.5 - Prob. 3LOCh. 24 - Prob. 1DACh. 24 - Prob. 1IQCh. 24 - Prob. 2IQCh. 24 - Prob. 3IQCh. 24 - Humans and pufferfish diverged from a common...Ch. 24 - Prob. 2UCh. 24 - Prob. 3UCh. 24 - Homologous genes in distantly related organisms...Ch. 24 - All of the following are believed to contribute to...Ch. 24 - What is the fate of most duplicated genes? a. Gene...Ch. 24 - Chimp and human DNA whole-genome sequences differ...Ch. 24 - Prob. 2ACh. 24 - Analyze the conclusion that the Medicago...Ch. 24 - Analyze why an herbicide that targets the...Ch. 24 - The FOX2 gene is associated with speech in human....Ch. 24 - One of the common misconceptions about sequencing...Ch. 24 - How does horizontal gene transfer (HGT) complicate...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- DNA sequence data suggest that modern humans last shared a common ancestor with Old World monkeys about 25 million years ago. In contrast, humans last shared a common ancestor with New World monkeys about 40 million years ago. What could be concluded about evolutionary relationships among these groups? A. Humans are more closely related to Old World monkeys than to New World monkeys. B. Old World monkeys are more closely related to humans than to New World monkeys. C. Both A and B are correct. D. Neither A nor B is correct. Explain.arrow_forwardIn the book, Jurassic Park, by Michael Crichton, scientists are able to reconstruct dinosaurs by getting dinosaur DNA from a mosquito that had been well-preserved in amber since the era of dinosaurs. Do you believe this can actually happen in real life? Why?arrow_forward. In browsing through the chimpanzee genome, you findthat it has three homologs of a particular gene, whereashumans have only two.a. What are two alternative explanations for thisobservation?b. How could you distinguish between these twopossibilities?arrow_forward
- Assume the common ancestor was non-venomous, had non-jointed limbs, antennae, and 10 legs. Assume that all evolutionary changes in these traits are shown. a) What traits does Species C have? b) What traits does species F have?arrow_forwardSegmental duplications play an important role in evolution by a. giving rise to new genes and multigene families. b. keeping the number of genes in a genome constant. c. eliminating repetitive sequences produced by transposition. d. controlling the base content of the genome.arrow_forwardIf you found the same gene in all organisms you test, what could this suggest about the evolution of this gene in the history of life on earth? What if a gene is very similar in most species that you study, but quite different in a particular group? What if it’s present in nearly everything, but the specific sequences vary quite a bit?arrow_forward
- The hoof of a horse and the claw of a cat are found to both form due to the expression of the same gene in both species. This suggests that the two structures are…? Group of answer choices a. homologous b. identical c. have nothing to do with one another d. the result of convergent evolutionarrow_forwardIf two different organisms are closely related evolutionarily, then they will (a) be similar in size. (b) share a recent common ancestor. (c) have very different DNA sequences in their genes. (d) be randomly located throughout the world.arrow_forwardWhen the genomes of vertebrates are compared,a. genomes of closer relatives are more alike.b. genomes of closer relatives are less alike.c. genomic variation is essentially the same among relatives.d. genomes of more distant relatives are more alike.arrow_forward
- When two organisms are very distantly related in an evolutionary sense, (a) they should have extremely similar embryonic development. (b) they must share a very recent common ancestor. (c) the sequences of DNA in their genes should be less similar (more different) than those of two more closely related organisms. (d) they should share more homologous traits than two more closely related organisms share.arrow_forwardWhy are human and chimpanzee DNA 96 percent similar? Please choose the best option.a) Both groups show similarities in their fossil record.b) Humans and chimpanzees share several similar traits such as the use of tools.c) These two species descended from a recent common ancestor.d) Natural selection has favored those particular genes in both humans and chimpanzees.arrow_forward. DNA sequences in many human genes are very similar to thesequences of corresponding genes in chimpanzees. The mostlikely explanation for this result is that(A) humans and chimpanzees share a relatively recent common ancestor.(B) humans evolved from chimpanzees.(C) chimpanzees evolved from humans.(D) convergent evolution led to the DNA similarities.arrow_forward
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