Exam 23: An Introduction to Evolution

A gene has been discovered in the genome of a eukaryote that is identical to a gene of a bacterium that the eukaryote normally engulfs and digests. This is probably due to

Did Darwin develop his theory of evolution through experimentation or observation or other methods?

Introns and an exons are removed from Gene 1 and inserted into Gene 2. What could happen to the protein product as a result of this mistake?

Which of the following could be classified as a "transitional form" fossil?

Vertical evolution arises from

Why was it important that Darwin visited islands, and then compared island species with continental species?

The concept of a species was proposed by

In comparing the chromosomes of humans, chimpanzees, gorillas, and orangutans which type of genomic evolution has occured with chromosome 3 in the orangutan compared to the other species?

The gene sequence of the p53 protein illustrates

Cacti in the deserts of southwestern North America and some euphorbs of the deserts of Africa, have barrel-shaped stems, short-lived leaves, and spines, yet these two types of plants are from different evolutionary lineages. This is an example of

English ivy (Hedera helix) and wintercreeper (Euonymus fortunei) both have aerial rootlets that allow them to climb up and stick to bark on trees. As you can tell from their scientific name these plants are not closely related, but yet they have both evolved similar morphological structures used for the same purpose. What type of evolution is this?

When Darwin observed several species of finches on the Galápagos Islands had unique beak characteristics, he compared them with finch beaks on the mainland. Which of the following studies use geographic distribution of extinct and living species to determine patterns of evolution?

During endocytosis, if a bacterial cell is not degraded and bacterial DNA is taken up by the eukaryotic cell, what may have occurred?

Molecular homology can be compared by analyzing the

Which of the following mechanisms may be responsible for the occurrance of exon shuffling?

Which of the following mechanisms may be responsible for the occurrance of exon shuffling?

The long snout of the giant anteater, Myrmecophaga tridactyla, of South America, and the echidna, Tachyglossus aculeatus, of Australia, are animals of different evolutionary lineages that are both adapted to eating ants. This is an example of

The island fox, Urocyon littoralis, is only found on the Channel Island off the coast of California. This species is not found on the mainland where the gray fox, Urocyon cinereoargenteus, lives. This species would be considered to be

An important message from the work of Thomas Malthus that influenced Charles Darwin was

Evolution at the genomic level involves changes in