1. _________ gametes are formed by _________ in a diploid organism. - AnswerHaploid, meiosis
The earth formed 4.55 billion years ago, but living organisms did not emerge
for another billion years (3.5 BYA). - AnswerTrue
It is thought that the first macromolecule in protobionts was RNA becau...
BIO 202 Exam 1 Questions & Answers Latest Updated
1. _________ gametes are formed by _________ in a diploid organism. - AnswerHaploid, meiosis
The earth formed 4.55 billion years ago, but living organisms did not emerge for another billion years (3.5 BYA). - AnswerTrue
It is thought that the first macromolecule in protobionts was RNA because - AnswerRNA can replicate itself and synthesize proteins.
The Miller and Urey experiment showed - AnswerHow nucleotides and amino acids could be produced prior to the existence of cells
Nucleotides were polymerized to form RNA - Answer. On clay particles
A protobiont - AnswerHas an internal environment that can differ from the external environment.
Selection against smaller billed finch individuals is an example of - AnswerDirectional selection.
Balancing selection - AnswerAll of the above
. Male elephant seals defend a territory and are the only potential mate for females in that territory. This
is an example of - AnswerIntrasexual selection
A quantitative trait - AnswerCan be influenced by the environment
Prezygotic isolating mechanisms occur - AnswerBefore an attempted mating Natural and sexual selection are the only mechanisms of evolution - Answerfalse
Evolution is - AnswerChange in the genetic composition of a population over time
Peter and Rosemary grant used the positive relationship between parent beak depth and offspring beak depth to verify that - AnswerThe size of beaks was heritable
Some proteins are capable of replicating themselves. - AnswerTrue
The study of biological diversity and evolutionary relationships among organisms is - AnswerSystematics
Which of the following organisms would NOT be classified in the Domain Eukarya? - Answer. Salmonella enterica (bacteria that causes food poisoning).
The scientific name for the golden crayfish is Orconectes luteus. Based on this information, the crayfish is
a member of what genus? - AnswerOrconectes
A phylogenetic tree shows the hypothesized evolutionary relationships among organisms, meaning that its structure can be revised and changed as new information about those relationships becomes known. - AnswerTrue
When a species consisting of a single large population slowly evolves over many generations into a new species, this an example of - Answeranagenesis
Can two different species that are members of the same clade have more than one common ancestor? Choose the MOST correct answer and explanation - Answer
when different species share a similar feature or character and that character was also present in their common ancestor, that character is - Answer
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